./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0218.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0218.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:42:33,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:42:33,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:42:33,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:42:33,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:42:33,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:42:33,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:42:33,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:42:33,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:42:33,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:42:33,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:42:33,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:42:33,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:42:33,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:42:33,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:42:33,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:42:33,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:42:33,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:42:33,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:42:33,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:42:33,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:42:33,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:42:33,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:42:33,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:42:33,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:42:33,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:42:33,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:42:33,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:42:33,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:42:33,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:42:33,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:42:33,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:42:34,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:42:34,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:42:34,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:42:34,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:42:34,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:42:34,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:42:34,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:42:34,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:42:34,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:42:34,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-07 01:42:34,022 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:42:34,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:42:34,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:42:34,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:42:34,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:42:34,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:42:34,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:42:34,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:42:34,024 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:42:34,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:42:34,024 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:42:34,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 01:42:34,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:42:34,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:42:34,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:42:34,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:42:34,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:42:34,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:42:34,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:42:34,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:42:34,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:42:34,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:42:34,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:42:34,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 [2021-12-07 01:42:34,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:42:34,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:42:34,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:42:34,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:42:34,224 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:42:34,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/memsafety/test-0218.i [2021-12-07 01:42:34,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/data/297d89bb4/d458f4ea74f74dfaa231c5f45553352a/FLAG41b26edce [2021-12-07 01:42:34,708 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:42:34,708 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/sv-benchmarks/c/memsafety/test-0218.i [2021-12-07 01:42:34,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/data/297d89bb4/d458f4ea74f74dfaa231c5f45553352a/FLAG41b26edce [2021-12-07 01:42:34,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/data/297d89bb4/d458f4ea74f74dfaa231c5f45553352a [2021-12-07 01:42:34,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:42:34,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:42:34,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:42:34,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:42:34,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:42:34,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:42:34" (1/1) ... [2021-12-07 01:42:34,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4aa81c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:34, skipping insertion in model container [2021-12-07 01:42:34,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:42:34" (1/1) ... [2021-12-07 01:42:34,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:42:34,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:42:35,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:42:35,049 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:42:35,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:42:35,130 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:42:35,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35 WrapperNode [2021-12-07 01:42:35,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:42:35,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:42:35,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:42:35,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:42:35,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,185 INFO L137 Inliner]: procedures = 181, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 216 [2021-12-07 01:42:35,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:42:35,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:42:35,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:42:35,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:42:35,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:42:35,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:42:35,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:42:35,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:42:35,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (1/1) ... [2021-12-07 01:42:35,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:42:35,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:35,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:42:35,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:42:35,284 INFO L130 BoogieDeclarations]: Found specification of procedure rand_end_point [2021-12-07 01:42:35,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rand_end_point [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:42:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:42:35,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:42:35,368 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:42:35,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:42:35,714 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:42:35,723 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:42:35,723 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-07 01:42:35,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:42:35 BoogieIcfgContainer [2021-12-07 01:42:35,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:42:35,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:42:35,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:42:35,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:42:35,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:42:34" (1/3) ... [2021-12-07 01:42:35,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774ca55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:42:35, skipping insertion in model container [2021-12-07 01:42:35,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:42:35" (2/3) ... [2021-12-07 01:42:35,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774ca55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:42:35, skipping insertion in model container [2021-12-07 01:42:35,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:42:35" (3/3) ... [2021-12-07 01:42:35,733 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0218.i [2021-12-07 01:42:35,738 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:42:35,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 65 error locations. [2021-12-07 01:42:35,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:42:35,781 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:42:35,782 INFO L340 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2021-12-07 01:42:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 98 states have (on average 1.9387755102040816) internal successors, (190), 163 states have internal predecessors, (190), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:42:35,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-07 01:42:35,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:35,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-07 01:42:35,799 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr57REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:35,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:35,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1074826664, now seen corresponding path program 1 times [2021-12-07 01:42:35,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:35,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145603660] [2021-12-07 01:42:35,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:35,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:35,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:35,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145603660] [2021-12-07 01:42:35,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145603660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:35,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:35,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:42:35,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678995125] [2021-12-07 01:42:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:35,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:42:35,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:35,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:42:35,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:42:35,928 INFO L87 Difference]: Start difference. First operand has 167 states, 98 states have (on average 1.9387755102040816) internal successors, (190), 163 states have internal predecessors, (190), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:35,947 INFO L93 Difference]: Finished difference Result 167 states and 188 transitions. [2021-12-07 01:42:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:42:35,956 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-07 01:42:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:35,963 INFO L225 Difference]: With dead ends: 167 [2021-12-07 01:42:35,963 INFO L226 Difference]: Without dead ends: 165 [2021-12-07 01:42:35,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:42:35,967 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:35,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:35,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-12-07 01:42:35,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-12-07 01:42:35,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 97 states have (on average 1.8762886597938144) internal successors, (182), 161 states have internal predecessors, (182), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:42:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2021-12-07 01:42:36,001 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 6 [2021-12-07 01:42:36,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:36,001 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2021-12-07 01:42:36,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,002 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2021-12-07 01:42:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-07 01:42:36,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:36,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:36,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:42:36,002 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr57REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:36,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1280321240, now seen corresponding path program 1 times [2021-12-07 01:42:36,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:36,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072159636] [2021-12-07 01:42:36,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:36,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:36,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:36,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072159636] [2021-12-07 01:42:36,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072159636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:36,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:36,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-07 01:42:36,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054468878] [2021-12-07 01:42:36,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:36,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:42:36,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:36,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:42:36,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:36,064 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:36,217 INFO L93 Difference]: Finished difference Result 321 states and 362 transitions. [2021-12-07 01:42:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:42:36,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-07 01:42:36,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:36,221 INFO L225 Difference]: With dead ends: 321 [2021-12-07 01:42:36,221 INFO L226 Difference]: Without dead ends: 321 [2021-12-07 01:42:36,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:36,222 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 167 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:36,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 245 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-12-07 01:42:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 227. [2021-12-07 01:42:36,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 156 states have (on average 1.858974358974359) internal successors, (290), 220 states have internal predecessors, (290), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:42:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 298 transitions. [2021-12-07 01:42:36,239 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 298 transitions. Word has length 7 [2021-12-07 01:42:36,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:36,239 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 298 transitions. [2021-12-07 01:42:36,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 298 transitions. [2021-12-07 01:42:36,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-07 01:42:36,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:36,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:36,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:42:36,241 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:36,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:36,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1280321239, now seen corresponding path program 1 times [2021-12-07 01:42:36,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:36,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253049883] [2021-12-07 01:42:36,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:36,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:36,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:36,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:36,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253049883] [2021-12-07 01:42:36,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253049883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:36,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:36,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:42:36,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486238654] [2021-12-07 01:42:36,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:36,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:36,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:36,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:36,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:36,322 INFO L87 Difference]: Start difference. First operand 227 states and 298 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:36,424 INFO L93 Difference]: Finished difference Result 245 states and 316 transitions. [2021-12-07 01:42:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:36,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-07 01:42:36,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:36,426 INFO L225 Difference]: With dead ends: 245 [2021-12-07 01:42:36,426 INFO L226 Difference]: Without dead ends: 245 [2021-12-07 01:42:36,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:36,427 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 214 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:36,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 253 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-12-07 01:42:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 229. [2021-12-07 01:42:36,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 158 states have (on average 1.8544303797468353) internal successors, (293), 222 states have internal predecessors, (293), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:42:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 301 transitions. [2021-12-07 01:42:36,440 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 301 transitions. Word has length 7 [2021-12-07 01:42:36,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:36,440 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 301 transitions. [2021-12-07 01:42:36,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,440 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 301 transitions. [2021-12-07 01:42:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-07 01:42:36,441 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:36,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:36,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:42:36,441 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:36,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1280321301, now seen corresponding path program 1 times [2021-12-07 01:42:36,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:36,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623370123] [2021-12-07 01:42:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:36,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:36,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:36,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623370123] [2021-12-07 01:42:36,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623370123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:36,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:36,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:42:36,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354324476] [2021-12-07 01:42:36,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:36,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:36,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:36,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:36,506 INFO L87 Difference]: Start difference. First operand 229 states and 301 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:36,594 INFO L93 Difference]: Finished difference Result 244 states and 314 transitions. [2021-12-07 01:42:36,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:36,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-07 01:42:36,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:36,596 INFO L225 Difference]: With dead ends: 244 [2021-12-07 01:42:36,596 INFO L226 Difference]: Without dead ends: 244 [2021-12-07 01:42:36,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:36,598 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 196 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:36,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 266 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-12-07 01:42:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 226. [2021-12-07 01:42:36,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 156 states have (on average 1.8461538461538463) internal successors, (288), 219 states have internal predecessors, (288), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:42:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 296 transitions. [2021-12-07 01:42:36,608 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 296 transitions. Word has length 7 [2021-12-07 01:42:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:36,609 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 296 transitions. [2021-12-07 01:42:36,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 296 transitions. [2021-12-07 01:42:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-07 01:42:36,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:36,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:36,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:42:36,610 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:36,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:36,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1554740496, now seen corresponding path program 1 times [2021-12-07 01:42:36,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:36,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913540719] [2021-12-07 01:42:36,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:36,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:36,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:36,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913540719] [2021-12-07 01:42:36,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913540719] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:36,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:36,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:36,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272889983] [2021-12-07 01:42:36,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:36,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:36,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:36,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:36,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:36,695 INFO L87 Difference]: Start difference. First operand 226 states and 296 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:36,824 INFO L93 Difference]: Finished difference Result 402 states and 517 transitions. [2021-12-07 01:42:36,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:36,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-07 01:42:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:36,827 INFO L225 Difference]: With dead ends: 402 [2021-12-07 01:42:36,827 INFO L226 Difference]: Without dead ends: 402 [2021-12-07 01:42:36,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:42:36,829 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 145 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:36,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 782 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:36,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-12-07 01:42:36,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 292. [2021-12-07 01:42:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 216 states have (on average 1.7916666666666667) internal successors, (387), 281 states have internal predecessors, (387), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 01:42:36,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 403 transitions. [2021-12-07 01:42:36,845 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 403 transitions. Word has length 10 [2021-12-07 01:42:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:36,845 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 403 transitions. [2021-12-07 01:42:36,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 403 transitions. [2021-12-07 01:42:36,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-07 01:42:36,846 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:36,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:36,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:42:36,846 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1552893454, now seen corresponding path program 1 times [2021-12-07 01:42:36,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:36,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724142187] [2021-12-07 01:42:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:36,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:36,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:36,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724142187] [2021-12-07 01:42:36,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724142187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:36,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:36,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:36,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279274427] [2021-12-07 01:42:36,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:36,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:36,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:36,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:36,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:36,929 INFO L87 Difference]: Start difference. First operand 292 states and 403 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:37,071 INFO L93 Difference]: Finished difference Result 392 states and 506 transitions. [2021-12-07 01:42:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:37,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-07 01:42:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:37,075 INFO L225 Difference]: With dead ends: 392 [2021-12-07 01:42:37,075 INFO L226 Difference]: Without dead ends: 392 [2021-12-07 01:42:37,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:37,076 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 131 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:37,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 791 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-12-07 01:42:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 292. [2021-12-07 01:42:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 216 states have (on average 1.7916666666666667) internal successors, (387), 281 states have internal predecessors, (387), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 01:42:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 403 transitions. [2021-12-07 01:42:37,085 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 403 transitions. Word has length 10 [2021-12-07 01:42:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:37,085 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 403 transitions. [2021-12-07 01:42:37,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:37,085 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 403 transitions. [2021-12-07 01:42:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-07 01:42:37,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:37,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:37,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:42:37,086 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash 952313872, now seen corresponding path program 1 times [2021-12-07 01:42:37,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:37,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380235943] [2021-12-07 01:42:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:37,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:37,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:37,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:37,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380235943] [2021-12-07 01:42:37,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380235943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:37,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:37,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:42:37,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120174919] [2021-12-07 01:42:37,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:37,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:42:37,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:37,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:42:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:37,105 INFO L87 Difference]: Start difference. First operand 292 states and 403 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:37,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:37,169 INFO L93 Difference]: Finished difference Result 347 states and 456 transitions. [2021-12-07 01:42:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:42:37,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-07 01:42:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:37,173 INFO L225 Difference]: With dead ends: 347 [2021-12-07 01:42:37,173 INFO L226 Difference]: Without dead ends: 340 [2021-12-07 01:42:37,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:37,174 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 70 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:37,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 279 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:37,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-12-07 01:42:37,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 289. [2021-12-07 01:42:37,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 213 states have (on average 1.7934272300469483) internal successors, (382), 278 states have internal predecessors, (382), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 01:42:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 398 transitions. [2021-12-07 01:42:37,186 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 398 transitions. Word has length 11 [2021-12-07 01:42:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:37,186 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 398 transitions. [2021-12-07 01:42:37,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:42:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 398 transitions. [2021-12-07 01:42:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-07 01:42:37,187 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:37,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:37,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:42:37,188 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:37,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:37,188 INFO L85 PathProgramCache]: Analyzing trace with hash -41167145, now seen corresponding path program 1 times [2021-12-07 01:42:37,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:37,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310040606] [2021-12-07 01:42:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:37,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:37,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:37,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:37,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310040606] [2021-12-07 01:42:37,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310040606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:37,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:37,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:37,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901241347] [2021-12-07 01:42:37,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:37,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:37,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:37,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:37,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:37,231 INFO L87 Difference]: Start difference. First operand 289 states and 398 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:37,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:37,397 INFO L93 Difference]: Finished difference Result 490 states and 599 transitions. [2021-12-07 01:42:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:37,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-07 01:42:37,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:37,400 INFO L225 Difference]: With dead ends: 490 [2021-12-07 01:42:37,401 INFO L226 Difference]: Without dead ends: 490 [2021-12-07 01:42:37,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:37,402 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 319 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:37,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 426 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-12-07 01:42:37,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 295. [2021-12-07 01:42:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 219 states have (on average 1.7716894977168949) internal successors, (388), 284 states have internal predecessors, (388), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 01:42:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 404 transitions. [2021-12-07 01:42:37,415 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 404 transitions. Word has length 15 [2021-12-07 01:42:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:37,415 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 404 transitions. [2021-12-07 01:42:37,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 404 transitions. [2021-12-07 01:42:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-07 01:42:37,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:37,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:37,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:42:37,417 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:37,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -41167144, now seen corresponding path program 1 times [2021-12-07 01:42:37,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:37,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324825733] [2021-12-07 01:42:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:37,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:37,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:37,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324825733] [2021-12-07 01:42:37,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324825733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:37,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:37,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:37,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177426481] [2021-12-07 01:42:37,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:37,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:37,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:37,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:37,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:37,477 INFO L87 Difference]: Start difference. First operand 295 states and 404 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:37,593 INFO L93 Difference]: Finished difference Result 393 states and 512 transitions. [2021-12-07 01:42:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:37,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-07 01:42:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:37,595 INFO L225 Difference]: With dead ends: 393 [2021-12-07 01:42:37,596 INFO L226 Difference]: Without dead ends: 393 [2021-12-07 01:42:37,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:37,596 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 343 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:37,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 270 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:37,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-07 01:42:37,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 292. [2021-12-07 01:42:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 219 states have (on average 1.7168949771689497) internal successors, (376), 281 states have internal predecessors, (376), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 01:42:37,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 392 transitions. [2021-12-07 01:42:37,606 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 392 transitions. Word has length 15 [2021-12-07 01:42:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:37,606 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 392 transitions. [2021-12-07 01:42:37,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:37,606 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 392 transitions. [2021-12-07 01:42:37,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 01:42:37,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:37,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:37,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:42:37,610 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:37,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash 85672930, now seen corresponding path program 1 times [2021-12-07 01:42:37,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:37,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892138846] [2021-12-07 01:42:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:37,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:37,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:37,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892138846] [2021-12-07 01:42:37,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892138846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:37,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:37,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:37,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557801345] [2021-12-07 01:42:37,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:37,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:37,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:37,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:37,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:37,675 INFO L87 Difference]: Start difference. First operand 292 states and 392 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:37,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:37,932 INFO L93 Difference]: Finished difference Result 628 states and 735 transitions. [2021-12-07 01:42:37,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:42:37,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-07 01:42:37,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:37,936 INFO L225 Difference]: With dead ends: 628 [2021-12-07 01:42:37,936 INFO L226 Difference]: Without dead ends: 628 [2021-12-07 01:42:37,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:37,937 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 763 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:37,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 538 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:37,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-12-07 01:42:37,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 289. [2021-12-07 01:42:37,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 220 states have (on average 1.6818181818181819) internal successors, (370), 278 states have internal predecessors, (370), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 01:42:37,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 386 transitions. [2021-12-07 01:42:37,951 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 386 transitions. Word has length 17 [2021-12-07 01:42:37,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:37,952 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 386 transitions. [2021-12-07 01:42:37,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 386 transitions. [2021-12-07 01:42:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 01:42:37,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:37,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:37,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:42:37,953 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:37,954 INFO L85 PathProgramCache]: Analyzing trace with hash 85672931, now seen corresponding path program 1 times [2021-12-07 01:42:37,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:37,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791198022] [2021-12-07 01:42:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:37,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:38,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:38,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791198022] [2021-12-07 01:42:38,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791198022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:38,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:38,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:38,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916262431] [2021-12-07 01:42:38,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:38,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:38,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:38,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:38,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:38,031 INFO L87 Difference]: Start difference. First operand 289 states and 386 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:38,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:38,328 INFO L93 Difference]: Finished difference Result 594 states and 794 transitions. [2021-12-07 01:42:38,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:42:38,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-07 01:42:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:38,333 INFO L225 Difference]: With dead ends: 594 [2021-12-07 01:42:38,333 INFO L226 Difference]: Without dead ends: 594 [2021-12-07 01:42:38,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:38,334 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 538 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:38,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [540 Valid, 698 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-12-07 01:42:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 351. [2021-12-07 01:42:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 278 states have (on average 1.6654676258992807) internal successors, (463), 338 states have internal predecessors, (463), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:38,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 487 transitions. [2021-12-07 01:42:38,348 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 487 transitions. Word has length 17 [2021-12-07 01:42:38,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:38,349 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 487 transitions. [2021-12-07 01:42:38,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:38,349 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 487 transitions. [2021-12-07 01:42:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 01:42:38,350 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:38,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:38,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 01:42:38,350 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:38,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1721781532, now seen corresponding path program 1 times [2021-12-07 01:42:38,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:38,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746180581] [2021-12-07 01:42:38,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:38,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:38,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:38,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746180581] [2021-12-07 01:42:38,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746180581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:38,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:38,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:38,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850749610] [2021-12-07 01:42:38,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:38,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:38,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:38,407 INFO L87 Difference]: Start difference. First operand 351 states and 487 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:38,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:38,441 INFO L93 Difference]: Finished difference Result 559 states and 756 transitions. [2021-12-07 01:42:38,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:38,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-07 01:42:38,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:38,445 INFO L225 Difference]: With dead ends: 559 [2021-12-07 01:42:38,445 INFO L226 Difference]: Without dead ends: 559 [2021-12-07 01:42:38,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:42:38,446 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 231 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:38,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1493 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-12-07 01:42:38,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 351. [2021-12-07 01:42:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 278 states have (on average 1.658273381294964) internal successors, (461), 338 states have internal predecessors, (461), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 485 transitions. [2021-12-07 01:42:38,459 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 485 transitions. Word has length 17 [2021-12-07 01:42:38,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:38,459 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 485 transitions. [2021-12-07 01:42:38,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:38,460 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 485 transitions. [2021-12-07 01:42:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-07 01:42:38,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:38,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:38,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 01:42:38,461 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:38,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:38,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1835564363, now seen corresponding path program 1 times [2021-12-07 01:42:38,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:38,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675285423] [2021-12-07 01:42:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:38,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:38,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:38,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:38,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675285423] [2021-12-07 01:42:38,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675285423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:38,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:38,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:38,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923988278] [2021-12-07 01:42:38,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:38,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:38,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:38,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:38,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:38,533 INFO L87 Difference]: Start difference. First operand 351 states and 485 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:38,789 INFO L93 Difference]: Finished difference Result 635 states and 863 transitions. [2021-12-07 01:42:38,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:42:38,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-07 01:42:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:38,792 INFO L225 Difference]: With dead ends: 635 [2021-12-07 01:42:38,792 INFO L226 Difference]: Without dead ends: 635 [2021-12-07 01:42:38,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:38,793 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 450 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:38,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 836 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:38,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-12-07 01:42:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 346. [2021-12-07 01:42:38,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 273 states have (on average 1.6593406593406594) internal successors, (453), 333 states have internal predecessors, (453), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 477 transitions. [2021-12-07 01:42:38,805 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 477 transitions. Word has length 18 [2021-12-07 01:42:38,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:38,805 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 477 transitions. [2021-12-07 01:42:38,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 477 transitions. [2021-12-07 01:42:38,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-07 01:42:38,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:38,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:38,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 01:42:38,806 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:38,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:38,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1066754491, now seen corresponding path program 1 times [2021-12-07 01:42:38,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:38,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623242294] [2021-12-07 01:42:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:38,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:39,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:39,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623242294] [2021-12-07 01:42:39,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623242294] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:39,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:39,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:42:39,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677776277] [2021-12-07 01:42:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:39,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:42:39,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:42:39,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:42:39,037 INFO L87 Difference]: Start difference. First operand 346 states and 477 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:39,486 INFO L93 Difference]: Finished difference Result 712 states and 967 transitions. [2021-12-07 01:42:39,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:42:39,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-12-07 01:42:39,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:39,489 INFO L225 Difference]: With dead ends: 712 [2021-12-07 01:42:39,489 INFO L226 Difference]: Without dead ends: 710 [2021-12-07 01:42:39,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:42:39,490 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 518 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:39,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 1628 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2021-12-07 01:42:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 340. [2021-12-07 01:42:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 267 states have (on average 1.655430711610487) internal successors, (442), 327 states have internal predecessors, (442), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 466 transitions. [2021-12-07 01:42:39,499 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 466 transitions. Word has length 21 [2021-12-07 01:42:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:39,499 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 466 transitions. [2021-12-07 01:42:39,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 466 transitions. [2021-12-07 01:42:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-07 01:42:39,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:39,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:39,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 01:42:39,500 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:39,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:39,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1136706200, now seen corresponding path program 1 times [2021-12-07 01:42:39,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:39,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103056054] [2021-12-07 01:42:39,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:39,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:39,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:39,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103056054] [2021-12-07 01:42:39,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103056054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:39,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:39,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:42:39,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554835901] [2021-12-07 01:42:39,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:39,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:42:39,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:39,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:42:39,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:42:39,632 INFO L87 Difference]: Start difference. First operand 340 states and 466 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:39,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:39,837 INFO L93 Difference]: Finished difference Result 496 states and 644 transitions. [2021-12-07 01:42:39,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:42:39,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-12-07 01:42:39,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:39,839 INFO L225 Difference]: With dead ends: 496 [2021-12-07 01:42:39,839 INFO L226 Difference]: Without dead ends: 496 [2021-12-07 01:42:39,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:42:39,840 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 207 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:39,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 907 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-12-07 01:42:39,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 356. [2021-12-07 01:42:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 283 states have (on average 1.6289752650176679) internal successors, (461), 341 states have internal predecessors, (461), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 485 transitions. [2021-12-07 01:42:39,851 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 485 transitions. Word has length 21 [2021-12-07 01:42:39,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:39,851 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 485 transitions. [2021-12-07 01:42:39,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 485 transitions. [2021-12-07 01:42:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 01:42:39,852 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:39,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:39,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 01:42:39,852 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:39,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:39,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1088554597, now seen corresponding path program 1 times [2021-12-07 01:42:39,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:39,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100483273] [2021-12-07 01:42:39,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:39,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:39,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:39,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100483273] [2021-12-07 01:42:39,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100483273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:39,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:39,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:39,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498519181] [2021-12-07 01:42:39,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:39,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:39,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:39,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:39,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:39,896 INFO L87 Difference]: Start difference. First operand 356 states and 485 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:39,923 INFO L93 Difference]: Finished difference Result 610 states and 833 transitions. [2021-12-07 01:42:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:39,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-12-07 01:42:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:39,926 INFO L225 Difference]: With dead ends: 610 [2021-12-07 01:42:39,926 INFO L226 Difference]: Without dead ends: 610 [2021-12-07 01:42:39,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:42:39,927 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 233 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:39,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1199 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:39,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2021-12-07 01:42:39,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 358. [2021-12-07 01:42:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 285 states have (on average 1.6245614035087719) internal successors, (463), 343 states have internal predecessors, (463), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 487 transitions. [2021-12-07 01:42:39,935 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 487 transitions. Word has length 22 [2021-12-07 01:42:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:39,935 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 487 transitions. [2021-12-07 01:42:39,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 487 transitions. [2021-12-07 01:42:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 01:42:39,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:39,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:39,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 01:42:39,936 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:39,937 INFO L85 PathProgramCache]: Analyzing trace with hash 686452765, now seen corresponding path program 1 times [2021-12-07 01:42:39,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:39,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812721619] [2021-12-07 01:42:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:39,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:39,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:39,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812721619] [2021-12-07 01:42:39,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812721619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:39,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:39,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:39,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780383074] [2021-12-07 01:42:39,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:39,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:39,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:39,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:39,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:39,983 INFO L87 Difference]: Start difference. First operand 358 states and 487 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:40,014 INFO L93 Difference]: Finished difference Result 606 states and 825 transitions. [2021-12-07 01:42:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:40,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-12-07 01:42:40,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:40,018 INFO L225 Difference]: With dead ends: 606 [2021-12-07 01:42:40,018 INFO L226 Difference]: Without dead ends: 606 [2021-12-07 01:42:40,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:42:40,019 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 230 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:40,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1215 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:40,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-12-07 01:42:40,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2021-12-07 01:42:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 283 states have (on average 1.6148409893992932) internal successors, (457), 341 states have internal predecessors, (457), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:40,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 481 transitions. [2021-12-07 01:42:40,030 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 481 transitions. Word has length 22 [2021-12-07 01:42:40,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:40,030 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 481 transitions. [2021-12-07 01:42:40,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 481 transitions. [2021-12-07 01:42:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 01:42:40,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:40,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:40,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 01:42:40,032 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:40,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1594113222, now seen corresponding path program 1 times [2021-12-07 01:42:40,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:40,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462606070] [2021-12-07 01:42:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:40,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:40,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:40,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462606070] [2021-12-07 01:42:40,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462606070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:40,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:40,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:42:40,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19645680] [2021-12-07 01:42:40,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:40,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:42:40,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:40,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:42:40,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:42:40,116 INFO L87 Difference]: Start difference. First operand 356 states and 481 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:40,342 INFO L93 Difference]: Finished difference Result 540 states and 714 transitions. [2021-12-07 01:42:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:42:40,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-12-07 01:42:40,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:40,345 INFO L225 Difference]: With dead ends: 540 [2021-12-07 01:42:40,345 INFO L226 Difference]: Without dead ends: 540 [2021-12-07 01:42:40,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:42:40,345 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 191 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:40,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1156 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-12-07 01:42:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 366. [2021-12-07 01:42:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 293 states have (on average 1.6006825938566553) internal successors, (469), 349 states have internal predecessors, (469), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:40,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 493 transitions. [2021-12-07 01:42:40,353 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 493 transitions. Word has length 22 [2021-12-07 01:42:40,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:40,354 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 493 transitions. [2021-12-07 01:42:40,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 493 transitions. [2021-12-07 01:42:40,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-07 01:42:40,354 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:40,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:40,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 01:42:40,354 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:40,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:40,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1338476602, now seen corresponding path program 1 times [2021-12-07 01:42:40,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:40,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828743159] [2021-12-07 01:42:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:40,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:40,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:40,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828743159] [2021-12-07 01:42:40,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828743159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:40,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:40,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:40,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519597025] [2021-12-07 01:42:40,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:40,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:40,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:40,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:40,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:40,381 INFO L87 Difference]: Start difference. First operand 366 states and 493 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:40,483 INFO L93 Difference]: Finished difference Result 643 states and 848 transitions. [2021-12-07 01:42:40,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:40,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-07 01:42:40,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:40,486 INFO L225 Difference]: With dead ends: 643 [2021-12-07 01:42:40,486 INFO L226 Difference]: Without dead ends: 643 [2021-12-07 01:42:40,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:40,487 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 527 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:40,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [531 Valid, 503 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2021-12-07 01:42:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 361. [2021-12-07 01:42:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 294 states have (on average 1.5680272108843538) internal successors, (461), 344 states have internal predecessors, (461), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 485 transitions. [2021-12-07 01:42:40,495 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 485 transitions. Word has length 23 [2021-12-07 01:42:40,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:40,495 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 485 transitions. [2021-12-07 01:42:40,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 485 transitions. [2021-12-07 01:42:40,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-07 01:42:40,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:40,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:40,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 01:42:40,496 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:40,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:40,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1338476601, now seen corresponding path program 1 times [2021-12-07 01:42:40,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:40,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542542029] [2021-12-07 01:42:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:40,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:40,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:40,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542542029] [2021-12-07 01:42:40,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542542029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:40,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:40,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:40,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076779921] [2021-12-07 01:42:40,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:40,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:40,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:40,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:40,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:40,549 INFO L87 Difference]: Start difference. First operand 361 states and 485 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:40,634 INFO L93 Difference]: Finished difference Result 413 states and 555 transitions. [2021-12-07 01:42:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:42:40,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-07 01:42:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:40,636 INFO L225 Difference]: With dead ends: 413 [2021-12-07 01:42:40,636 INFO L226 Difference]: Without dead ends: 413 [2021-12-07 01:42:40,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:40,637 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 252 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:40,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 330 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-07 01:42:40,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 358. [2021-12-07 01:42:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 294 states have (on average 1.5442176870748299) internal successors, (454), 341 states have internal predecessors, (454), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 478 transitions. [2021-12-07 01:42:40,644 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 478 transitions. Word has length 23 [2021-12-07 01:42:40,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:40,644 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 478 transitions. [2021-12-07 01:42:40,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,644 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 478 transitions. [2021-12-07 01:42:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-07 01:42:40,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:40,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:40,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 01:42:40,645 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:40,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:40,645 INFO L85 PathProgramCache]: Analyzing trace with hash -740334691, now seen corresponding path program 1 times [2021-12-07 01:42:40,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:40,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834394582] [2021-12-07 01:42:40,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:40,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:40,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:40,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834394582] [2021-12-07 01:42:40,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834394582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:40,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:40,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:40,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56401307] [2021-12-07 01:42:40,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:40,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:40,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:40,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:40,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:40,665 INFO L87 Difference]: Start difference. First operand 358 states and 478 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:40,678 INFO L93 Difference]: Finished difference Result 374 states and 494 transitions. [2021-12-07 01:42:40,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:42:40,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-07 01:42:40,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:40,680 INFO L225 Difference]: With dead ends: 374 [2021-12-07 01:42:40,680 INFO L226 Difference]: Without dead ends: 374 [2021-12-07 01:42:40,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:40,681 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 3 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:40,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 490 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-12-07 01:42:40,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2021-12-07 01:42:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 306 states have (on average 1.522875816993464) internal successors, (466), 353 states have internal predecessors, (466), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 490 transitions. [2021-12-07 01:42:40,687 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 490 transitions. Word has length 25 [2021-12-07 01:42:40,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:40,688 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 490 transitions. [2021-12-07 01:42:40,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 490 transitions. [2021-12-07 01:42:40,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-07 01:42:40,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:40,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:40,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 01:42:40,689 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:40,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:40,689 INFO L85 PathProgramCache]: Analyzing trace with hash -738487649, now seen corresponding path program 1 times [2021-12-07 01:42:40,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:40,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193101674] [2021-12-07 01:42:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:40,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:40,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:40,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193101674] [2021-12-07 01:42:40,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193101674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:40,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:40,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:40,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208746130] [2021-12-07 01:42:40,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:40,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:40,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:40,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:40,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:40,724 INFO L87 Difference]: Start difference. First operand 370 states and 490 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:40,849 INFO L93 Difference]: Finished difference Result 716 states and 943 transitions. [2021-12-07 01:42:40,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:40,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-07 01:42:40,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:40,852 INFO L225 Difference]: With dead ends: 716 [2021-12-07 01:42:40,852 INFO L226 Difference]: Without dead ends: 716 [2021-12-07 01:42:40,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:40,852 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 388 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:40,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 423 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-12-07 01:42:40,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 446. [2021-12-07 01:42:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 382 states have (on average 1.513089005235602) internal successors, (578), 429 states have internal predecessors, (578), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 602 transitions. [2021-12-07 01:42:40,864 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 602 transitions. Word has length 25 [2021-12-07 01:42:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:40,864 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 602 transitions. [2021-12-07 01:42:40,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,865 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 602 transitions. [2021-12-07 01:42:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-07 01:42:40,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:40,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:40,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 01:42:40,865 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:40,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:40,866 INFO L85 PathProgramCache]: Analyzing trace with hash -738487650, now seen corresponding path program 1 times [2021-12-07 01:42:40,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:40,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437309123] [2021-12-07 01:42:40,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:40,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:40,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:40,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437309123] [2021-12-07 01:42:40,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437309123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:40,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:40,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:42:40,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393413221] [2021-12-07 01:42:40,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:40,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:42:40,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:40,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:42:40,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:40,891 INFO L87 Difference]: Start difference. First operand 446 states and 602 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:40,949 INFO L93 Difference]: Finished difference Result 520 states and 679 transitions. [2021-12-07 01:42:40,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:42:40,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-07 01:42:40,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:40,952 INFO L225 Difference]: With dead ends: 520 [2021-12-07 01:42:40,952 INFO L226 Difference]: Without dead ends: 520 [2021-12-07 01:42:40,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:42:40,953 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 132 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:40,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 251 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2021-12-07 01:42:40,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 444. [2021-12-07 01:42:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 382 states have (on average 1.4816753926701571) internal successors, (566), 427 states have internal predecessors, (566), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 590 transitions. [2021-12-07 01:42:40,963 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 590 transitions. Word has length 25 [2021-12-07 01:42:40,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:40,964 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 590 transitions. [2021-12-07 01:42:40,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:40,964 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 590 transitions. [2021-12-07 01:42:40,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-07 01:42:40,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:40,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:40,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 01:42:40,965 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:40,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:40,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1484578673, now seen corresponding path program 1 times [2021-12-07 01:42:40,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:40,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527816279] [2021-12-07 01:42:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:40,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:41,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:41,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527816279] [2021-12-07 01:42:41,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527816279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:41,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:41,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:41,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331938817] [2021-12-07 01:42:41,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:41,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:41,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:41,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:41,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:41,008 INFO L87 Difference]: Start difference. First operand 444 states and 590 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:41,126 INFO L93 Difference]: Finished difference Result 788 states and 1035 transitions. [2021-12-07 01:42:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:41,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-07 01:42:41,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:41,130 INFO L225 Difference]: With dead ends: 788 [2021-12-07 01:42:41,131 INFO L226 Difference]: Without dead ends: 788 [2021-12-07 01:42:41,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:41,131 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 294 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:41,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 481 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:41,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2021-12-07 01:42:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 444. [2021-12-07 01:42:41,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 382 states have (on average 1.4816753926701571) internal successors, (566), 427 states have internal predecessors, (566), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 590 transitions. [2021-12-07 01:42:41,143 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 590 transitions. Word has length 26 [2021-12-07 01:42:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:41,143 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 590 transitions. [2021-12-07 01:42:41,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 590 transitions. [2021-12-07 01:42:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-07 01:42:41,144 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:41,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:41,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 01:42:41,144 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:41,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:41,145 INFO L85 PathProgramCache]: Analyzing trace with hash -2109324045, now seen corresponding path program 1 times [2021-12-07 01:42:41,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:41,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845514395] [2021-12-07 01:42:41,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:41,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:41,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:41,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845514395] [2021-12-07 01:42:41,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845514395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:41,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:41,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:41,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577774541] [2021-12-07 01:42:41,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:41,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:41,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:41,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:41,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:41,193 INFO L87 Difference]: Start difference. First operand 444 states and 590 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:41,219 INFO L93 Difference]: Finished difference Result 624 states and 817 transitions. [2021-12-07 01:42:41,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:41,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-07 01:42:41,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:41,221 INFO L225 Difference]: With dead ends: 624 [2021-12-07 01:42:41,221 INFO L226 Difference]: Without dead ends: 624 [2021-12-07 01:42:41,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:42:41,222 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 216 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:41,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1382 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2021-12-07 01:42:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 367. [2021-12-07 01:42:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 306 states have (on average 1.4705882352941178) internal successors, (450), 350 states have internal predecessors, (450), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 474 transitions. [2021-12-07 01:42:41,234 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 474 transitions. Word has length 26 [2021-12-07 01:42:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:41,235 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 474 transitions. [2021-12-07 01:42:41,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 474 transitions. [2021-12-07 01:42:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-07 01:42:41,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:41,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:41,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-07 01:42:41,236 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:41,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1817784781, now seen corresponding path program 1 times [2021-12-07 01:42:41,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:41,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637172114] [2021-12-07 01:42:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:41,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:41,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:41,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637172114] [2021-12-07 01:42:41,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637172114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:41,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:41,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:41,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764737636] [2021-12-07 01:42:41,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:41,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:41,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:41,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:41,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:41,289 INFO L87 Difference]: Start difference. First operand 367 states and 474 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:41,392 INFO L93 Difference]: Finished difference Result 433 states and 539 transitions. [2021-12-07 01:42:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:42:41,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-12-07 01:42:41,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:41,394 INFO L225 Difference]: With dead ends: 433 [2021-12-07 01:42:41,394 INFO L226 Difference]: Without dead ends: 433 [2021-12-07 01:42:41,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:41,395 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 151 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:41,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 616 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:41,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2021-12-07 01:42:41,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 367. [2021-12-07 01:42:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 306 states have (on average 1.4673202614379084) internal successors, (449), 350 states have internal predecessors, (449), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:41,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 473 transitions. [2021-12-07 01:42:41,402 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 473 transitions. Word has length 27 [2021-12-07 01:42:41,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:41,402 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 473 transitions. [2021-12-07 01:42:41,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,403 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 473 transitions. [2021-12-07 01:42:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-07 01:42:41,403 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:41,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:41,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 01:42:41,403 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:41,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1017025601, now seen corresponding path program 1 times [2021-12-07 01:42:41,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:41,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15409329] [2021-12-07 01:42:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:41,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:41,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:41,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15409329] [2021-12-07 01:42:41,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15409329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:41,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:41,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:42:41,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52383796] [2021-12-07 01:42:41,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:41,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:42:41,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:41,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:42:41,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:41,459 INFO L87 Difference]: Start difference. First operand 367 states and 473 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:41,595 INFO L93 Difference]: Finished difference Result 547 states and 698 transitions. [2021-12-07 01:42:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:42:41,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-12-07 01:42:41,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:41,598 INFO L225 Difference]: With dead ends: 547 [2021-12-07 01:42:41,598 INFO L226 Difference]: Without dead ends: 547 [2021-12-07 01:42:41,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:42:41,598 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 143 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:41,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1147 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-12-07 01:42:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 399. [2021-12-07 01:42:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 338 states have (on average 1.4408284023668638) internal successors, (487), 382 states have internal predecessors, (487), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 511 transitions. [2021-12-07 01:42:41,605 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 511 transitions. Word has length 27 [2021-12-07 01:42:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:41,605 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 511 transitions. [2021-12-07 01:42:41,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 511 transitions. [2021-12-07 01:42:41,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-07 01:42:41,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:41,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:41,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-07 01:42:41,606 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:41,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:41,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1017025407, now seen corresponding path program 1 times [2021-12-07 01:42:41,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:41,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107119350] [2021-12-07 01:42:41,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:41,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:41,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:41,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107119350] [2021-12-07 01:42:41,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107119350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:41,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:41,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:41,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077646968] [2021-12-07 01:42:41,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:41,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:41,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:41,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:41,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:41,656 INFO L87 Difference]: Start difference. First operand 399 states and 511 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:41,779 INFO L93 Difference]: Finished difference Result 774 states and 986 transitions. [2021-12-07 01:42:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:42:41,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-12-07 01:42:41,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:41,782 INFO L225 Difference]: With dead ends: 774 [2021-12-07 01:42:41,782 INFO L226 Difference]: Without dead ends: 774 [2021-12-07 01:42:41,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:41,783 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 422 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:41,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 623 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-12-07 01:42:41,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 515. [2021-12-07 01:42:41,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 454 states have (on average 1.4295154185022025) internal successors, (649), 498 states have internal predecessors, (649), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 673 transitions. [2021-12-07 01:42:41,792 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 673 transitions. Word has length 27 [2021-12-07 01:42:41,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:41,792 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 673 transitions. [2021-12-07 01:42:41,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,792 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 673 transitions. [2021-12-07 01:42:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-07 01:42:41,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:41,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:41,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-07 01:42:41,793 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:41,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash 516753601, now seen corresponding path program 1 times [2021-12-07 01:42:41,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:41,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666800401] [2021-12-07 01:42:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:41,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:41,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:41,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666800401] [2021-12-07 01:42:41,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666800401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:41,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:41,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:41,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692909714] [2021-12-07 01:42:41,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:41,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:41,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:41,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:41,852 INFO L87 Difference]: Start difference. First operand 515 states and 673 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:41,976 INFO L93 Difference]: Finished difference Result 748 states and 951 transitions. [2021-12-07 01:42:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:42:41,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-07 01:42:41,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:41,979 INFO L225 Difference]: With dead ends: 748 [2021-12-07 01:42:41,979 INFO L226 Difference]: Without dead ends: 748 [2021-12-07 01:42:41,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:41,980 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 206 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:41,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 623 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-12-07 01:42:41,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 557. [2021-12-07 01:42:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 492 states have (on average 1.4227642276422765) internal successors, (700), 538 states have internal predecessors, (700), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2021-12-07 01:42:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 730 transitions. [2021-12-07 01:42:41,992 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 730 transitions. Word has length 28 [2021-12-07 01:42:41,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:41,993 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 730 transitions. [2021-12-07 01:42:41,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:41,993 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 730 transitions. [2021-12-07 01:42:41,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-07 01:42:41,993 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:41,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:41,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-07 01:42:41,993 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:41,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:41,994 INFO L85 PathProgramCache]: Analyzing trace with hash 750963923, now seen corresponding path program 1 times [2021-12-07 01:42:41,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:41,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347761039] [2021-12-07 01:42:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:41,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:42,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:42,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347761039] [2021-12-07 01:42:42,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347761039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:42,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:42,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:42,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106527036] [2021-12-07 01:42:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:42,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:42,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:42,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:42,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:42,033 INFO L87 Difference]: Start difference. First operand 557 states and 730 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:42,167 INFO L93 Difference]: Finished difference Result 815 states and 1035 transitions. [2021-12-07 01:42:42,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:42,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-07 01:42:42,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:42,170 INFO L225 Difference]: With dead ends: 815 [2021-12-07 01:42:42,170 INFO L226 Difference]: Without dead ends: 815 [2021-12-07 01:42:42,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:42,171 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 287 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:42,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 545 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-12-07 01:42:42,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 440. [2021-12-07 01:42:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 376 states have (on average 1.4095744680851063) internal successors, (530), 421 states have internal predecessors, (530), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 13 states have call predecessors, (20), 10 states have call successors, (20) [2021-12-07 01:42:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 560 transitions. [2021-12-07 01:42:42,180 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 560 transitions. Word has length 28 [2021-12-07 01:42:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:42,180 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 560 transitions. [2021-12-07 01:42:42,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 560 transitions. [2021-12-07 01:42:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:42:42,180 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:42,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:42,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-07 01:42:42,180 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:42,181 INFO L85 PathProgramCache]: Analyzing trace with hash -933658936, now seen corresponding path program 1 times [2021-12-07 01:42:42,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:42,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985178511] [2021-12-07 01:42:42,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:42,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:42,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:42,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985178511] [2021-12-07 01:42:42,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985178511] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:42,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:42,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:42,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400117052] [2021-12-07 01:42:42,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:42,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:42,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:42,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:42,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:42,228 INFO L87 Difference]: Start difference. First operand 440 states and 560 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:42,257 INFO L93 Difference]: Finished difference Result 880 states and 1124 transitions. [2021-12-07 01:42:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:42:42,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-07 01:42:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:42,261 INFO L225 Difference]: With dead ends: 880 [2021-12-07 01:42:42,262 INFO L226 Difference]: Without dead ends: 880 [2021-12-07 01:42:42,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:42,262 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 218 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:42,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 914 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:42,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2021-12-07 01:42:42,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 511. [2021-12-07 01:42:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 447 states have (on average 1.3914988814317673) internal successors, (622), 487 states have internal predecessors, (622), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 18 states have call predecessors, (20), 10 states have call successors, (20) [2021-12-07 01:42:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 652 transitions. [2021-12-07 01:42:42,275 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 652 transitions. Word has length 30 [2021-12-07 01:42:42,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:42,275 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 652 transitions. [2021-12-07 01:42:42,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 652 transitions. [2021-12-07 01:42:42,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:42:42,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:42,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:42,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-07 01:42:42,275 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:42,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash -933657014, now seen corresponding path program 1 times [2021-12-07 01:42:42,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:42,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235784698] [2021-12-07 01:42:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:42,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:42,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:42,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235784698] [2021-12-07 01:42:42,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235784698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:42,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:42,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:42,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580607240] [2021-12-07 01:42:42,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:42,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:42:42,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:42,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:42:42,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:42,340 INFO L87 Difference]: Start difference. First operand 511 states and 652 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:42,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:42,550 INFO L93 Difference]: Finished difference Result 1083 states and 1379 transitions. [2021-12-07 01:42:42,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:42:42,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-07 01:42:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:42,554 INFO L225 Difference]: With dead ends: 1083 [2021-12-07 01:42:42,554 INFO L226 Difference]: Without dead ends: 1083 [2021-12-07 01:42:42,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:42,554 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 478 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:42,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 1616 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:42,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2021-12-07 01:42:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 520. [2021-12-07 01:42:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 456 states have (on average 1.3903508771929824) internal successors, (634), 496 states have internal predecessors, (634), 10 states have call successors, (10), 5 states have call predecessors, (10), 10 states have return successors, (20), 18 states have call predecessors, (20), 10 states have call successors, (20) [2021-12-07 01:42:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 664 transitions. [2021-12-07 01:42:42,568 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 664 transitions. Word has length 30 [2021-12-07 01:42:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:42,568 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 664 transitions. [2021-12-07 01:42:42,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 664 transitions. [2021-12-07 01:42:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:42:42,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:42,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:42,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-07 01:42:42,569 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:42,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1615988093, now seen corresponding path program 1 times [2021-12-07 01:42:42,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:42,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292783929] [2021-12-07 01:42:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:42,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:42,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292783929] [2021-12-07 01:42:42,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292783929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:42,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:42,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:42,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733941621] [2021-12-07 01:42:42,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:42,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:42,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:42,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:42,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:42,655 INFO L87 Difference]: Start difference. First operand 520 states and 664 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:43,000 INFO L93 Difference]: Finished difference Result 1002 states and 1250 transitions. [2021-12-07 01:42:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:43,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-07 01:42:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:43,005 INFO L225 Difference]: With dead ends: 1002 [2021-12-07 01:42:43,006 INFO L226 Difference]: Without dead ends: 1002 [2021-12-07 01:42:43,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:43,006 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 448 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:43,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 990 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 01:42:43,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2021-12-07 01:42:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 567. [2021-12-07 01:42:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 499 states have (on average 1.3827655310621243) internal successors, (690), 540 states have internal predecessors, (690), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 20 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 726 transitions. [2021-12-07 01:42:43,020 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 726 transitions. Word has length 30 [2021-12-07 01:42:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:43,020 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 726 transitions. [2021-12-07 01:42:43,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 726 transitions. [2021-12-07 01:42:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:42:43,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:43,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:43,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-07 01:42:43,021 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1342481239, now seen corresponding path program 1 times [2021-12-07 01:42:43,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:43,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650112075] [2021-12-07 01:42:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:43,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:43,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:43,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650112075] [2021-12-07 01:42:43,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650112075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:43,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:43,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:43,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774289928] [2021-12-07 01:42:43,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:43,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:43,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:43,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:43,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:43,075 INFO L87 Difference]: Start difference. First operand 567 states and 726 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:43,101 INFO L93 Difference]: Finished difference Result 922 states and 1187 transitions. [2021-12-07 01:42:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:42:43,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-07 01:42:43,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:43,105 INFO L225 Difference]: With dead ends: 922 [2021-12-07 01:42:43,105 INFO L226 Difference]: Without dead ends: 922 [2021-12-07 01:42:43,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:43,106 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 199 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:43,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1045 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:42:43,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2021-12-07 01:42:43,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 565. [2021-12-07 01:42:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 497 states have (on average 1.3822937625754528) internal successors, (687), 538 states have internal predecessors, (687), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 20 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 723 transitions. [2021-12-07 01:42:43,114 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 723 transitions. Word has length 30 [2021-12-07 01:42:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:43,115 INFO L470 AbstractCegarLoop]: Abstraction has 565 states and 723 transitions. [2021-12-07 01:42:43,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 723 transitions. [2021-12-07 01:42:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:42:43,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:43,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:43,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-07 01:42:43,115 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:43,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:43,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1340636119, now seen corresponding path program 1 times [2021-12-07 01:42:43,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:43,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467572522] [2021-12-07 01:42:43,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:43,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:43,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:43,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467572522] [2021-12-07 01:42:43,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467572522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:43,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:43,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:43,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642090044] [2021-12-07 01:42:43,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:43,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:42:43,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:43,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:42:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:43,183 INFO L87 Difference]: Start difference. First operand 565 states and 723 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:43,359 INFO L93 Difference]: Finished difference Result 1139 states and 1463 transitions. [2021-12-07 01:42:43,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:42:43,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-07 01:42:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:43,363 INFO L225 Difference]: With dead ends: 1139 [2021-12-07 01:42:43,363 INFO L226 Difference]: Without dead ends: 1139 [2021-12-07 01:42:43,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:43,364 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 458 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:43,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 1708 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:43,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2021-12-07 01:42:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 556. [2021-12-07 01:42:43,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 490 states have (on average 1.373469387755102) internal successors, (673), 529 states have internal predecessors, (673), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 20 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:43,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 709 transitions. [2021-12-07 01:42:43,379 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 709 transitions. Word has length 30 [2021-12-07 01:42:43,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:43,379 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 709 transitions. [2021-12-07 01:42:43,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 709 transitions. [2021-12-07 01:42:43,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-07 01:42:43,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:43,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:43,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-07 01:42:43,380 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:43,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:43,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1443976913, now seen corresponding path program 1 times [2021-12-07 01:42:43,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:43,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369111705] [2021-12-07 01:42:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:43,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:43,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:43,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369111705] [2021-12-07 01:42:43,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369111705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:43,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:43,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:43,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199987410] [2021-12-07 01:42:43,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:43,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:42:43,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:43,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:42:43,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:43,473 INFO L87 Difference]: Start difference. First operand 556 states and 709 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:43,764 INFO L93 Difference]: Finished difference Result 1248 states and 1553 transitions. [2021-12-07 01:42:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:42:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-07 01:42:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:43,769 INFO L225 Difference]: With dead ends: 1248 [2021-12-07 01:42:43,769 INFO L226 Difference]: Without dead ends: 1248 [2021-12-07 01:42:43,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:42:43,770 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 1046 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:43,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1046 Valid, 787 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:43,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2021-12-07 01:42:43,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 555. [2021-12-07 01:42:43,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 490 states have (on average 1.3653061224489795) internal successors, (669), 528 states have internal predecessors, (669), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 20 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 705 transitions. [2021-12-07 01:42:43,778 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 705 transitions. Word has length 31 [2021-12-07 01:42:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:43,779 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 705 transitions. [2021-12-07 01:42:43,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 705 transitions. [2021-12-07 01:42:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-07 01:42:43,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:43,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:43,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-07 01:42:43,779 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr48REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash 403780234, now seen corresponding path program 1 times [2021-12-07 01:42:43,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:43,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076261613] [2021-12-07 01:42:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:43,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:43,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:43,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076261613] [2021-12-07 01:42:43,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076261613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:43,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:43,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:42:43,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103182858] [2021-12-07 01:42:43,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:43,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:43,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:43,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:43,889 INFO L87 Difference]: Start difference. First operand 555 states and 705 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:44,019 INFO L93 Difference]: Finished difference Result 601 states and 752 transitions. [2021-12-07 01:42:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:42:44,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-07 01:42:44,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:44,021 INFO L225 Difference]: With dead ends: 601 [2021-12-07 01:42:44,021 INFO L226 Difference]: Without dead ends: 601 [2021-12-07 01:42:44,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:42:44,022 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 104 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:44,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 772 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-12-07 01:42:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 534. [2021-12-07 01:42:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 469 states have (on average 1.371002132196162) internal successors, (643), 509 states have internal predecessors, (643), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 18 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 679 transitions. [2021-12-07 01:42:44,029 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 679 transitions. Word has length 32 [2021-12-07 01:42:44,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:44,029 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 679 transitions. [2021-12-07 01:42:44,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,030 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 679 transitions. [2021-12-07 01:42:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-07 01:42:44,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:44,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:44,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-07 01:42:44,030 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash 407119085, now seen corresponding path program 1 times [2021-12-07 01:42:44,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:44,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802925282] [2021-12-07 01:42:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:44,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:44,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:44,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802925282] [2021-12-07 01:42:44,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802925282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:44,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:44,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:44,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186301379] [2021-12-07 01:42:44,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:44,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:44,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:44,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:44,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:44,079 INFO L87 Difference]: Start difference. First operand 534 states and 679 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:44,163 INFO L93 Difference]: Finished difference Result 642 states and 807 transitions. [2021-12-07 01:42:44,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:42:44,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-12-07 01:42:44,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:44,166 INFO L225 Difference]: With dead ends: 642 [2021-12-07 01:42:44,166 INFO L226 Difference]: Without dead ends: 642 [2021-12-07 01:42:44,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:44,167 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 336 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:44,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 478 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2021-12-07 01:42:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 533. [2021-12-07 01:42:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 469 states have (on average 1.3667377398720681) internal successors, (641), 508 states have internal predecessors, (641), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 18 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 677 transitions. [2021-12-07 01:42:44,175 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 677 transitions. Word has length 33 [2021-12-07 01:42:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:44,176 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 677 transitions. [2021-12-07 01:42:44,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 677 transitions. [2021-12-07 01:42:44,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-07 01:42:44,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:44,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:44,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-07 01:42:44,176 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:44,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:44,177 INFO L85 PathProgramCache]: Analyzing trace with hash 407119084, now seen corresponding path program 1 times [2021-12-07 01:42:44,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:44,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207300781] [2021-12-07 01:42:44,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:44,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:44,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:44,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207300781] [2021-12-07 01:42:44,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207300781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:44,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:44,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:44,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358104182] [2021-12-07 01:42:44,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:44,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:44,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:44,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:44,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:44,208 INFO L87 Difference]: Start difference. First operand 533 states and 677 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:44,300 INFO L93 Difference]: Finished difference Result 627 states and 787 transitions. [2021-12-07 01:42:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:42:44,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-12-07 01:42:44,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:44,302 INFO L225 Difference]: With dead ends: 627 [2021-12-07 01:42:44,302 INFO L226 Difference]: Without dead ends: 627 [2021-12-07 01:42:44,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:42:44,303 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 312 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:44,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 432 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:44,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-07 01:42:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 532. [2021-12-07 01:42:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 469 states have (on average 1.3624733475479744) internal successors, (639), 507 states have internal predecessors, (639), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 18 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:44,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 675 transitions. [2021-12-07 01:42:44,310 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 675 transitions. Word has length 33 [2021-12-07 01:42:44,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:44,310 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 675 transitions. [2021-12-07 01:42:44,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,310 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 675 transitions. [2021-12-07 01:42:44,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-07 01:42:44,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:44,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:44,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-07 01:42:44,310 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:44,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:44,311 INFO L85 PathProgramCache]: Analyzing trace with hash 399419021, now seen corresponding path program 1 times [2021-12-07 01:42:44,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:44,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377799103] [2021-12-07 01:42:44,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:44,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:44,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:44,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377799103] [2021-12-07 01:42:44,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377799103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:44,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:44,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:42:44,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118705472] [2021-12-07 01:42:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:44,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:42:44,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:44,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:42:44,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:44,338 INFO L87 Difference]: Start difference. First operand 532 states and 675 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:44,453 INFO L93 Difference]: Finished difference Result 884 states and 1089 transitions. [2021-12-07 01:42:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:42:44,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-12-07 01:42:44,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:44,456 INFO L225 Difference]: With dead ends: 884 [2021-12-07 01:42:44,456 INFO L226 Difference]: Without dead ends: 884 [2021-12-07 01:42:44,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:44,457 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 449 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:44,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 548 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2021-12-07 01:42:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 529. [2021-12-07 01:42:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 469 states have (on average 1.349680170575693) internal successors, (633), 504 states have internal predecessors, (633), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 18 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 669 transitions. [2021-12-07 01:42:44,465 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 669 transitions. Word has length 35 [2021-12-07 01:42:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:44,465 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 669 transitions. [2021-12-07 01:42:44,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,465 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 669 transitions. [2021-12-07 01:42:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-07 01:42:44,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:44,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:44,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-07 01:42:44,466 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:44,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:44,466 INFO L85 PathProgramCache]: Analyzing trace with hash 399419022, now seen corresponding path program 1 times [2021-12-07 01:42:44,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:44,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831471061] [2021-12-07 01:42:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:44,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:44,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:44,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831471061] [2021-12-07 01:42:44,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831471061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:44,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:44,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:42:44,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466628961] [2021-12-07 01:42:44,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:44,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:42:44,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:44,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:42:44,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:42:44,525 INFO L87 Difference]: Start difference. First operand 529 states and 669 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:44,661 INFO L93 Difference]: Finished difference Result 804 states and 995 transitions. [2021-12-07 01:42:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:42:44,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-12-07 01:42:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:44,664 INFO L225 Difference]: With dead ends: 804 [2021-12-07 01:42:44,664 INFO L226 Difference]: Without dead ends: 804 [2021-12-07 01:42:44,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:42:44,664 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 691 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:44,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 565 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-12-07 01:42:44,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 528. [2021-12-07 01:42:44,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 469 states have (on average 1.3454157782515992) internal successors, (631), 503 states have internal predecessors, (631), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 18 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:44,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 667 transitions. [2021-12-07 01:42:44,672 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 667 transitions. Word has length 35 [2021-12-07 01:42:44,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:44,672 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 667 transitions. [2021-12-07 01:42:44,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,673 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 667 transitions. [2021-12-07 01:42:44,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-07 01:42:44,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:44,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:44,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-07 01:42:44,673 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:44,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:44,673 INFO L85 PathProgramCache]: Analyzing trace with hash 399419183, now seen corresponding path program 1 times [2021-12-07 01:42:44,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:44,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617237539] [2021-12-07 01:42:44,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:44,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:44,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:44,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617237539] [2021-12-07 01:42:44,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617237539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:44,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:44,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:42:44,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96830533] [2021-12-07 01:42:44,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:44,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:42:44,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:44,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:42:44,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:42:44,726 INFO L87 Difference]: Start difference. First operand 528 states and 667 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:44,812 INFO L93 Difference]: Finished difference Result 635 states and 793 transitions. [2021-12-07 01:42:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 01:42:44,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-12-07 01:42:44,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:44,814 INFO L225 Difference]: With dead ends: 635 [2021-12-07 01:42:44,814 INFO L226 Difference]: Without dead ends: 635 [2021-12-07 01:42:44,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:42:44,815 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 286 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:44,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 241 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:44,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-12-07 01:42:44,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 526. [2021-12-07 01:42:44,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 469 states have (on average 1.3368869936034116) internal successors, (627), 501 states have internal predecessors, (627), 12 states have call successors, (12), 6 states have call predecessors, (12), 12 states have return successors, (24), 18 states have call predecessors, (24), 12 states have call successors, (24) [2021-12-07 01:42:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 663 transitions. [2021-12-07 01:42:44,822 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 663 transitions. Word has length 35 [2021-12-07 01:42:44,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:44,822 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 663 transitions. [2021-12-07 01:42:44,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:44,822 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 663 transitions. [2021-12-07 01:42:44,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-07 01:42:44,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:44,823 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:44,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-07 01:42:44,823 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1620073746, now seen corresponding path program 1 times [2021-12-07 01:42:44,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:44,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460758759] [2021-12-07 01:42:44,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:44,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:42:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,861 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 01:42:44,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:44,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460758759] [2021-12-07 01:42:44,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460758759] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:42:44,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504535196] [2021-12-07 01:42:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:44,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:44,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:44,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:42:44,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:42:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:44,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-07 01:42:44,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:42:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:45,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:42:45,127 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-12-07 01:42:45,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2021-12-07 01:42:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 01:42:45,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504535196] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:42:45,163 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:42:45,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-12-07 01:42:45,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793966612] [2021-12-07 01:42:45,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:42:45,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:42:45,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:45,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:42:45,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:45,164 INFO L87 Difference]: Start difference. First operand 526 states and 663 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:42:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:45,598 INFO L93 Difference]: Finished difference Result 1730 states and 2099 transitions. [2021-12-07 01:42:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 01:42:45,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2021-12-07 01:42:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:45,602 INFO L225 Difference]: With dead ends: 1730 [2021-12-07 01:42:45,602 INFO L226 Difference]: Without dead ends: 1730 [2021-12-07 01:42:45,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:42:45,603 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 2378 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:45,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2380 Valid, 1397 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 01:42:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-07 01:42:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 676. [2021-12-07 01:42:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 611 states have (on average 1.3322422258592472) internal successors, (814), 643 states have internal predecessors, (814), 16 states have call successors, (16), 8 states have call predecessors, (16), 16 states have return successors, (32), 24 states have call predecessors, (32), 16 states have call successors, (32) [2021-12-07 01:42:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 862 transitions. [2021-12-07 01:42:45,620 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 862 transitions. Word has length 43 [2021-12-07 01:42:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:45,621 INFO L470 AbstractCegarLoop]: Abstraction has 676 states and 862 transitions. [2021-12-07 01:42:45,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:42:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 862 transitions. [2021-12-07 01:42:45,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-07 01:42:45,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:45,621 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:45,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:42:45,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:45,822 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:45,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1803853866, now seen corresponding path program 1 times [2021-12-07 01:42:45,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:45,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848040559] [2021-12-07 01:42:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:45,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-07 01:42:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:45,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:45,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:45,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848040559] [2021-12-07 01:42:45,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848040559] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:42:45,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300107656] [2021-12-07 01:42:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:45,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:45,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:45,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:42:45,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:42:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:45,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-07 01:42:45,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:42:46,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:42:46,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-12-07 01:42:46,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:42:46,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-12-07 01:42:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 01:42:46,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:42:46,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300107656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:46,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:42:46,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2021-12-07 01:42:46,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731480701] [2021-12-07 01:42:46,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:46,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:42:46,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:46,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:42:46,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:42:46,126 INFO L87 Difference]: Start difference. First operand 676 states and 862 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:46,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:46,347 INFO L93 Difference]: Finished difference Result 640 states and 801 transitions. [2021-12-07 01:42:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:42:46,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-07 01:42:46,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:46,349 INFO L225 Difference]: With dead ends: 640 [2021-12-07 01:42:46,349 INFO L226 Difference]: Without dead ends: 640 [2021-12-07 01:42:46,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:42:46,350 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 280 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:46,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 1358 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-12-07 01:42:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 482. [2021-12-07 01:42:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 433 states have (on average 1.3533487297921478) internal successors, (586), 462 states have internal predecessors, (586), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 15 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 610 transitions. [2021-12-07 01:42:46,358 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 610 transitions. Word has length 45 [2021-12-07 01:42:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:46,358 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 610 transitions. [2021-12-07 01:42:46,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 610 transitions. [2021-12-07 01:42:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-07 01:42:46,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:46,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:46,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:42:46,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-12-07 01:42:46,559 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:46,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1377360706, now seen corresponding path program 1 times [2021-12-07 01:42:46,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:46,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574240520] [2021-12-07 01:42:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:46,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:47,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:47,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:47,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:47,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574240520] [2021-12-07 01:42:47,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574240520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:47,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:47,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:42:47,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838919969] [2021-12-07 01:42:47,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:47,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:42:47,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:47,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:42:47,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:47,024 INFO L87 Difference]: Start difference. First operand 482 states and 610 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:47,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:47,378 INFO L93 Difference]: Finished difference Result 686 states and 860 transitions. [2021-12-07 01:42:47,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:42:47,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-07 01:42:47,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:47,380 INFO L225 Difference]: With dead ends: 686 [2021-12-07 01:42:47,380 INFO L226 Difference]: Without dead ends: 686 [2021-12-07 01:42:47,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:42:47,380 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 251 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:47,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1200 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:47,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-12-07 01:42:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 504. [2021-12-07 01:42:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 455 states have (on average 1.3384615384615384) internal successors, (609), 484 states have internal predecessors, (609), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 15 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-07 01:42:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 633 transitions. [2021-12-07 01:42:47,387 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 633 transitions. Word has length 49 [2021-12-07 01:42:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:47,387 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 633 transitions. [2021-12-07 01:42:47,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 633 transitions. [2021-12-07 01:42:47,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 01:42:47,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:47,387 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:47,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-07 01:42:47,388 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:47,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:47,388 INFO L85 PathProgramCache]: Analyzing trace with hash 399799259, now seen corresponding path program 1 times [2021-12-07 01:42:47,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:47,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124313756] [2021-12-07 01:42:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:47,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:47,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:47,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:47,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124313756] [2021-12-07 01:42:47,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124313756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:47,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:47,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:42:47,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935785459] [2021-12-07 01:42:47,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:47,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:42:47,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:47,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:42:47,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:42:47,517 INFO L87 Difference]: Start difference. First operand 504 states and 633 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:47,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:47,831 INFO L93 Difference]: Finished difference Result 962 states and 1198 transitions. [2021-12-07 01:42:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:42:47,831 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-07 01:42:47,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:47,833 INFO L225 Difference]: With dead ends: 962 [2021-12-07 01:42:47,833 INFO L226 Difference]: Without dead ends: 962 [2021-12-07 01:42:47,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:42:47,833 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 1002 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:47,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 963 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2021-12-07 01:42:47,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 614. [2021-12-07 01:42:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 554 states have (on average 1.332129963898917) internal successors, (738), 585 states have internal predecessors, (738), 14 states have call successors, (14), 7 states have call predecessors, (14), 14 states have return successors, (28), 21 states have call predecessors, (28), 14 states have call successors, (28) [2021-12-07 01:42:47,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 780 transitions. [2021-12-07 01:42:47,842 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 780 transitions. Word has length 50 [2021-12-07 01:42:47,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:47,842 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 780 transitions. [2021-12-07 01:42:47,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 780 transitions. [2021-12-07 01:42:47,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 01:42:47,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:47,843 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:47,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-07 01:42:47,843 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:47,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash 399799260, now seen corresponding path program 1 times [2021-12-07 01:42:47,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:47,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149147973] [2021-12-07 01:42:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:47,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:48,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:48,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:48,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149147973] [2021-12-07 01:42:48,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149147973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:48,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:48,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:42:48,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998265869] [2021-12-07 01:42:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:48,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:42:48,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:48,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:42:48,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:48,036 INFO L87 Difference]: Start difference. First operand 614 states and 780 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:48,385 INFO L93 Difference]: Finished difference Result 940 states and 1178 transitions. [2021-12-07 01:42:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:42:48,386 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-07 01:42:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:48,387 INFO L225 Difference]: With dead ends: 940 [2021-12-07 01:42:48,387 INFO L226 Difference]: Without dead ends: 940 [2021-12-07 01:42:48,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:42:48,388 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 808 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:48,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 737 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:48,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2021-12-07 01:42:48,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 719. [2021-12-07 01:42:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 651 states have (on average 1.336405529953917) internal successors, (870), 684 states have internal predecessors, (870), 18 states have call successors, (18), 9 states have call predecessors, (18), 18 states have return successors, (36), 25 states have call predecessors, (36), 18 states have call successors, (36) [2021-12-07 01:42:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 924 transitions. [2021-12-07 01:42:48,398 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 924 transitions. Word has length 50 [2021-12-07 01:42:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:48,398 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 924 transitions. [2021-12-07 01:42:48,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 924 transitions. [2021-12-07 01:42:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 01:42:48,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:48,399 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:48,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-07 01:42:48,399 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:48,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:48,399 INFO L85 PathProgramCache]: Analyzing trace with hash 397952217, now seen corresponding path program 1 times [2021-12-07 01:42:48,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:48,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489142462] [2021-12-07 01:42:48,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:48,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:48,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:48,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489142462] [2021-12-07 01:42:48,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489142462] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:42:48,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803253811] [2021-12-07 01:42:48,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:48,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:48,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:48,609 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:42:48,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 01:42:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:48,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-07 01:42:48,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:42:48,723 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 01:42:48,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 01:42:48,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:42:48,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:42:48,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-07 01:42:48,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-07 01:42:48,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 01:42:48,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 01:42:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:49,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:42:49,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803253811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:49,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:42:49,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 22 [2021-12-07 01:42:49,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887007338] [2021-12-07 01:42:49,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:49,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:42:49,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:49,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:42:49,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-12-07 01:42:49,028 INFO L87 Difference]: Start difference. First operand 719 states and 924 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:49,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:49,483 INFO L93 Difference]: Finished difference Result 1628 states and 2054 transitions. [2021-12-07 01:42:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:42:49,483 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-07 01:42:49,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:49,485 INFO L225 Difference]: With dead ends: 1628 [2021-12-07 01:42:49,486 INFO L226 Difference]: Without dead ends: 1628 [2021-12-07 01:42:49,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2021-12-07 01:42:49,486 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 711 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:49,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 1539 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 01:42:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2021-12-07 01:42:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 749. [2021-12-07 01:42:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 681 states have (on average 1.328928046989721) internal successors, (905), 714 states have internal predecessors, (905), 18 states have call successors, (18), 9 states have call predecessors, (18), 18 states have return successors, (36), 25 states have call predecessors, (36), 18 states have call successors, (36) [2021-12-07 01:42:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 959 transitions. [2021-12-07 01:42:49,502 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 959 transitions. Word has length 50 [2021-12-07 01:42:49,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:49,503 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 959 transitions. [2021-12-07 01:42:49,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:49,503 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 959 transitions. [2021-12-07 01:42:49,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 01:42:49,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:49,503 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:49,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 01:42:49,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-12-07 01:42:49,704 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:49,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:49,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1779782164, now seen corresponding path program 1 times [2021-12-07 01:42:49,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:49,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89243368] [2021-12-07 01:42:49,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:49,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:49,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:49,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:49,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89243368] [2021-12-07 01:42:49,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89243368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:49,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:49,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-07 01:42:49,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433048115] [2021-12-07 01:42:49,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:49,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-07 01:42:49,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:49,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-07 01:42:49,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:42:49,928 INFO L87 Difference]: Start difference. First operand 749 states and 959 transitions. Second operand has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:50,632 INFO L93 Difference]: Finished difference Result 1865 states and 2385 transitions. [2021-12-07 01:42:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-07 01:42:50,632 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-07 01:42:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:50,635 INFO L225 Difference]: With dead ends: 1865 [2021-12-07 01:42:50,635 INFO L226 Difference]: Without dead ends: 1865 [2021-12-07 01:42:50,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2021-12-07 01:42:50,635 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 986 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:50,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 2189 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 01:42:50,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2021-12-07 01:42:50,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 952. [2021-12-07 01:42:50,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 872 states have (on average 1.3325688073394495) internal successors, (1162), 908 states have internal predecessors, (1162), 24 states have call successors, (24), 12 states have call predecessors, (24), 24 states have return successors, (48), 31 states have call predecessors, (48), 24 states have call successors, (48) [2021-12-07 01:42:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1234 transitions. [2021-12-07 01:42:50,647 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1234 transitions. Word has length 50 [2021-12-07 01:42:50,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:50,648 INFO L470 AbstractCegarLoop]: Abstraction has 952 states and 1234 transitions. [2021-12-07 01:42:50,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:50,648 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1234 transitions. [2021-12-07 01:42:50,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 01:42:50,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:50,648 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:50,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-07 01:42:50,648 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:50,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:50,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1779782165, now seen corresponding path program 1 times [2021-12-07 01:42:50,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:50,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459987448] [2021-12-07 01:42:50,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:50,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:50,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:50,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:50,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:50,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459987448] [2021-12-07 01:42:50,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459987448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:50,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:50,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:42:50,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672525346] [2021-12-07 01:42:50,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:50,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:42:50,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:50,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:42:50,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:50,876 INFO L87 Difference]: Start difference. First operand 952 states and 1234 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:51,481 INFO L93 Difference]: Finished difference Result 1899 states and 2447 transitions. [2021-12-07 01:42:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-07 01:42:51,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-07 01:42:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:51,483 INFO L225 Difference]: With dead ends: 1899 [2021-12-07 01:42:51,484 INFO L226 Difference]: Without dead ends: 1899 [2021-12-07 01:42:51,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2021-12-07 01:42:51,484 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 690 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:51,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 2104 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 01:42:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2021-12-07 01:42:51,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 841. [2021-12-07 01:42:51,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 773 states have (on average 1.3350582147477361) internal successors, (1032), 806 states have internal predecessors, (1032), 18 states have call successors, (18), 9 states have call predecessors, (18), 18 states have return successors, (36), 25 states have call predecessors, (36), 18 states have call successors, (36) [2021-12-07 01:42:51,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1086 transitions. [2021-12-07 01:42:51,496 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1086 transitions. Word has length 50 [2021-12-07 01:42:51,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:51,496 INFO L470 AbstractCegarLoop]: Abstraction has 841 states and 1086 transitions. [2021-12-07 01:42:51,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1086 transitions. [2021-12-07 01:42:51,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-07 01:42:51,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:51,497 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:51,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-07 01:42:51,497 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:51,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1777935122, now seen corresponding path program 1 times [2021-12-07 01:42:51,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:51,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471716020] [2021-12-07 01:42:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:51,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:51,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:51,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471716020] [2021-12-07 01:42:51,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471716020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:51,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:51,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 01:42:51,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388105710] [2021-12-07 01:42:51,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:51,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:42:51,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:42:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:51,684 INFO L87 Difference]: Start difference. First operand 841 states and 1086 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:52,239 INFO L93 Difference]: Finished difference Result 1665 states and 2100 transitions. [2021-12-07 01:42:52,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:42:52,240 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-07 01:42:52,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:52,242 INFO L225 Difference]: With dead ends: 1665 [2021-12-07 01:42:52,242 INFO L226 Difference]: Without dead ends: 1665 [2021-12-07 01:42:52,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-12-07 01:42:52,242 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 665 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:52,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [669 Valid, 1964 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 01:42:52,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2021-12-07 01:42:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 846. [2021-12-07 01:42:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 778 states have (on average 1.332904884318766) internal successors, (1037), 811 states have internal predecessors, (1037), 18 states have call successors, (18), 9 states have call predecessors, (18), 18 states have return successors, (36), 25 states have call predecessors, (36), 18 states have call successors, (36) [2021-12-07 01:42:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1091 transitions. [2021-12-07 01:42:52,254 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1091 transitions. Word has length 50 [2021-12-07 01:42:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:52,255 INFO L470 AbstractCegarLoop]: Abstraction has 846 states and 1091 transitions. [2021-12-07 01:42:52,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1091 transitions. [2021-12-07 01:42:52,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-07 01:42:52,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:52,255 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:52,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-07 01:42:52,255 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:52,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:52,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1311732840, now seen corresponding path program 1 times [2021-12-07 01:42:52,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:52,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543119456] [2021-12-07 01:42:52,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:52,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:52,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:52,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:52,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543119456] [2021-12-07 01:42:52,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543119456] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:42:52,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608917349] [2021-12-07 01:42:52,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:52,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:52,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:42:52,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:42:52,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 01:42:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:52,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-07 01:42:52,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:42:52,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:42:52,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:42:52,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:42:52,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-12-07 01:42:52,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:42:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:52,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:42:52,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608917349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:52,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:42:52,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 22 [2021-12-07 01:42:52,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027422627] [2021-12-07 01:42:52,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:52,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:42:52,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:52,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:42:52,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-12-07 01:42:52,925 INFO L87 Difference]: Start difference. First operand 846 states and 1091 transitions. Second operand has 11 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:53,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:53,254 INFO L93 Difference]: Finished difference Result 1527 states and 1952 transitions. [2021-12-07 01:42:53,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:42:53,254 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-12-07 01:42:53,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:53,256 INFO L225 Difference]: With dead ends: 1527 [2021-12-07 01:42:53,256 INFO L226 Difference]: Without dead ends: 1527 [2021-12-07 01:42:53,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2021-12-07 01:42:53,257 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 834 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:53,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 882 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:53,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2021-12-07 01:42:53,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1078. [2021-12-07 01:42:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 986 states have (on average 1.328600405679513) internal successors, (1310), 1025 states have internal predecessors, (1310), 30 states have call successors, (30), 15 states have call predecessors, (30), 30 states have return successors, (60), 37 states have call predecessors, (60), 30 states have call successors, (60) [2021-12-07 01:42:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1400 transitions. [2021-12-07 01:42:53,272 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1400 transitions. Word has length 51 [2021-12-07 01:42:53,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:53,272 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1400 transitions. [2021-12-07 01:42:53,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1400 transitions. [2021-12-07 01:42:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-07 01:42:53,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:53,273 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:53,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 01:42:53,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:42:53,474 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:53,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1311732841, now seen corresponding path program 1 times [2021-12-07 01:42:53,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:53,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430539382] [2021-12-07 01:42:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:53,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:53,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:53,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:53,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430539382] [2021-12-07 01:42:53,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430539382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:53,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:53,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-07 01:42:53,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739875050] [2021-12-07 01:42:53,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:53,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-07 01:42:53,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:53,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-07 01:42:53,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:42:53,828 INFO L87 Difference]: Start difference. First operand 1078 states and 1400 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:54,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:54,620 INFO L93 Difference]: Finished difference Result 2588 states and 3394 transitions. [2021-12-07 01:42:54,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-07 01:42:54,620 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-12-07 01:42:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:54,626 INFO L225 Difference]: With dead ends: 2588 [2021-12-07 01:42:54,626 INFO L226 Difference]: Without dead ends: 2588 [2021-12-07 01:42:54,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2021-12-07 01:42:54,627 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 1988 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:54,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1990 Valid, 1347 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 01:42:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2021-12-07 01:42:54,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 1269. [2021-12-07 01:42:54,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1161 states have (on average 1.3333333333333333) internal successors, (1548), 1204 states have internal predecessors, (1548), 38 states have call successors, (38), 19 states have call predecessors, (38), 38 states have return successors, (76), 45 states have call predecessors, (76), 38 states have call successors, (76) [2021-12-07 01:42:54,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1662 transitions. [2021-12-07 01:42:54,645 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1662 transitions. Word has length 51 [2021-12-07 01:42:54,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:54,645 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 1662 transitions. [2021-12-07 01:42:54,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1662 transitions. [2021-12-07 01:42:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 01:42:54,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:54,646 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:54,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-07 01:42:54,646 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:54,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2066269430, now seen corresponding path program 1 times [2021-12-07 01:42:54,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:54,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716533723] [2021-12-07 01:42:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:54,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:54,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:54,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:54,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:54,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716533723] [2021-12-07 01:42:54,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716533723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:54,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:54,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:42:54,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098558633] [2021-12-07 01:42:54,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:54,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:42:54,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:54,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:42:54,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:42:54,765 INFO L87 Difference]: Start difference. First operand 1269 states and 1662 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:54,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:54,964 INFO L93 Difference]: Finished difference Result 1979 states and 2573 transitions. [2021-12-07 01:42:54,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:42:54,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-12-07 01:42:54,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:54,967 INFO L225 Difference]: With dead ends: 1979 [2021-12-07 01:42:54,967 INFO L226 Difference]: Without dead ends: 1979 [2021-12-07 01:42:54,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-12-07 01:42:54,967 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 807 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:54,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 909 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:42:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2021-12-07 01:42:54,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1685. [2021-12-07 01:42:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1537 states have (on average 1.332465842550423) internal successors, (2048), 1590 states have internal predecessors, (2048), 58 states have call successors, (58), 29 states have call predecessors, (58), 58 states have return successors, (116), 65 states have call predecessors, (116), 58 states have call successors, (116) [2021-12-07 01:42:54,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2222 transitions. [2021-12-07 01:42:54,987 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2222 transitions. Word has length 52 [2021-12-07 01:42:54,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:54,987 INFO L470 AbstractCegarLoop]: Abstraction has 1685 states and 2222 transitions. [2021-12-07 01:42:54,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2222 transitions. [2021-12-07 01:42:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 01:42:54,987 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:54,988 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:54,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-07 01:42:54,988 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2009011128, now seen corresponding path program 1 times [2021-12-07 01:42:54,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:54,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933432178] [2021-12-07 01:42:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:54,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:55,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:55,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933432178] [2021-12-07 01:42:55,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933432178] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:55,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:55,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-07 01:42:55,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369543425] [2021-12-07 01:42:55,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:55,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-07 01:42:55,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:55,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-07 01:42:55,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:42:55,265 INFO L87 Difference]: Start difference. First operand 1685 states and 2222 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:56,167 INFO L93 Difference]: Finished difference Result 3006 states and 3952 transitions. [2021-12-07 01:42:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-07 01:42:56,168 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-12-07 01:42:56,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:56,177 INFO L225 Difference]: With dead ends: 3006 [2021-12-07 01:42:56,177 INFO L226 Difference]: Without dead ends: 3006 [2021-12-07 01:42:56,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2021-12-07 01:42:56,177 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 2073 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:56,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2075 Valid, 1723 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 01:42:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2021-12-07 01:42:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1685. [2021-12-07 01:42:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1537 states have (on average 1.332465842550423) internal successors, (2048), 1590 states have internal predecessors, (2048), 58 states have call successors, (58), 29 states have call predecessors, (58), 58 states have return successors, (116), 65 states have call predecessors, (116), 58 states have call successors, (116) [2021-12-07 01:42:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2222 transitions. [2021-12-07 01:42:56,217 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2222 transitions. Word has length 52 [2021-12-07 01:42:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:56,218 INFO L470 AbstractCegarLoop]: Abstraction has 1685 states and 2222 transitions. [2021-12-07 01:42:56,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:56,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2222 transitions. [2021-12-07 01:42:56,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 01:42:56,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:56,218 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:56,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-07 01:42:56,219 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:56,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:56,219 INFO L85 PathProgramCache]: Analyzing trace with hash 842252799, now seen corresponding path program 1 times [2021-12-07 01:42:56,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:56,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984344655] [2021-12-07 01:42:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:56,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:56,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:56,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:56,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984344655] [2021-12-07 01:42:56,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984344655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:56,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:56,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 01:42:56,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178230456] [2021-12-07 01:42:56,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:56,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:42:56,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:56,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:42:56,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:56,448 INFO L87 Difference]: Start difference. First operand 1685 states and 2222 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:56,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:56,930 INFO L93 Difference]: Finished difference Result 2733 states and 3577 transitions. [2021-12-07 01:42:56,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 01:42:56,930 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-12-07 01:42:56,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:56,932 INFO L225 Difference]: With dead ends: 2733 [2021-12-07 01:42:56,933 INFO L226 Difference]: Without dead ends: 2733 [2021-12-07 01:42:56,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2021-12-07 01:42:56,933 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 645 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:56,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 2915 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 01:42:56,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2021-12-07 01:42:56,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 1269. [2021-12-07 01:42:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1161 states have (on average 1.3316106804478898) internal successors, (1546), 1204 states have internal predecessors, (1546), 38 states have call successors, (38), 19 states have call predecessors, (38), 38 states have return successors, (76), 45 states have call predecessors, (76), 38 states have call successors, (76) [2021-12-07 01:42:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1660 transitions. [2021-12-07 01:42:56,952 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1660 transitions. Word has length 52 [2021-12-07 01:42:56,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:56,952 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 1660 transitions. [2021-12-07 01:42:56,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1660 transitions. [2021-12-07 01:42:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-07 01:42:56,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:56,953 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:56,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-07 01:42:56,953 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:56,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1411489050, now seen corresponding path program 1 times [2021-12-07 01:42:56,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:56,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645581542] [2021-12-07 01:42:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:56,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:57,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:57,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:57,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:57,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645581542] [2021-12-07 01:42:57,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645581542] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:57,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:57,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:42:57,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127093447] [2021-12-07 01:42:57,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:57,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:42:57,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:57,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:42:57,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:57,161 INFO L87 Difference]: Start difference. First operand 1269 states and 1660 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:57,600 INFO L93 Difference]: Finished difference Result 2085 states and 2715 transitions. [2021-12-07 01:42:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-07 01:42:57,600 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-12-07 01:42:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:57,602 INFO L225 Difference]: With dead ends: 2085 [2021-12-07 01:42:57,602 INFO L226 Difference]: Without dead ends: 2085 [2021-12-07 01:42:57,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2021-12-07 01:42:57,602 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 799 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:57,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 925 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:42:57,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2021-12-07 01:42:57,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1795. [2021-12-07 01:42:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1639 states have (on average 1.3343502135448444) internal successors, (2187), 1694 states have internal predecessors, (2187), 62 states have call successors, (62), 31 states have call predecessors, (62), 62 states have return successors, (124), 69 states have call predecessors, (124), 62 states have call successors, (124) [2021-12-07 01:42:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2373 transitions. [2021-12-07 01:42:57,629 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2373 transitions. Word has length 54 [2021-12-07 01:42:57,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:57,629 INFO L470 AbstractCegarLoop]: Abstraction has 1795 states and 2373 transitions. [2021-12-07 01:42:57,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:57,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2373 transitions. [2021-12-07 01:42:57,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-07 01:42:57,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:57,630 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:57,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-07 01:42:57,630 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:57,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2074131620, now seen corresponding path program 1 times [2021-12-07 01:42:57,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:57,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748644882] [2021-12-07 01:42:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:57,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:57,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:57,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:57,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748644882] [2021-12-07 01:42:57,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748644882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:57,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:57,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-07 01:42:57,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189206293] [2021-12-07 01:42:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:57,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-07 01:42:57,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-07 01:42:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:42:57,920 INFO L87 Difference]: Start difference. First operand 1795 states and 2373 transitions. Second operand has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:59,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:59,099 INFO L93 Difference]: Finished difference Result 3212 states and 4242 transitions. [2021-12-07 01:42:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-07 01:42:59,100 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-12-07 01:42:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:59,102 INFO L225 Difference]: With dead ends: 3212 [2021-12-07 01:42:59,102 INFO L226 Difference]: Without dead ends: 3212 [2021-12-07 01:42:59,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=370, Invalid=1270, Unknown=0, NotChecked=0, Total=1640 [2021-12-07 01:42:59,103 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 2007 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:59,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2009 Valid, 1425 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 01:42:59,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2021-12-07 01:42:59,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 1795. [2021-12-07 01:42:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1639 states have (on average 1.3343502135448444) internal successors, (2187), 1694 states have internal predecessors, (2187), 62 states have call successors, (62), 31 states have call predecessors, (62), 62 states have return successors, (124), 69 states have call predecessors, (124), 62 states have call successors, (124) [2021-12-07 01:42:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2373 transitions. [2021-12-07 01:42:59,128 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2373 transitions. Word has length 54 [2021-12-07 01:42:59,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:59,128 INFO L470 AbstractCegarLoop]: Abstraction has 1795 states and 2373 transitions. [2021-12-07 01:42:59,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:59,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2373 transitions. [2021-12-07 01:42:59,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-07 01:42:59,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:59,129 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:59,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-07 01:42:59,129 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:59,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:59,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1952545763, now seen corresponding path program 1 times [2021-12-07 01:42:59,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:59,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726805301] [2021-12-07 01:42:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:59,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:42:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:42:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:42:59,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:42:59,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726805301] [2021-12-07 01:42:59,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726805301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:42:59,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:42:59,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:42:59,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672212696] [2021-12-07 01:42:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:42:59,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:42:59,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:42:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:42:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:42:59,340 INFO L87 Difference]: Start difference. First operand 1795 states and 2373 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:42:59,814 INFO L93 Difference]: Finished difference Result 2931 states and 3861 transitions. [2021-12-07 01:42:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-07 01:42:59,814 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-12-07 01:42:59,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:42:59,816 INFO L225 Difference]: With dead ends: 2931 [2021-12-07 01:42:59,816 INFO L226 Difference]: Without dead ends: 2931 [2021-12-07 01:42:59,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2021-12-07 01:42:59,817 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 720 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:42:59,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 2201 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 01:42:59,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2021-12-07 01:42:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 1767. [2021-12-07 01:42:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1611 states have (on average 1.3333333333333333) internal successors, (2148), 1666 states have internal predecessors, (2148), 62 states have call successors, (62), 31 states have call predecessors, (62), 62 states have return successors, (124), 69 states have call predecessors, (124), 62 states have call successors, (124) [2021-12-07 01:42:59,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2334 transitions. [2021-12-07 01:42:59,837 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2334 transitions. Word has length 54 [2021-12-07 01:42:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:42:59,838 INFO L470 AbstractCegarLoop]: Abstraction has 1767 states and 2334 transitions. [2021-12-07 01:42:59,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 01:42:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2334 transitions. [2021-12-07 01:42:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-07 01:42:59,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:42:59,838 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:42:59,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-07 01:42:59,839 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:42:59,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:42:59,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1262088084, now seen corresponding path program 1 times [2021-12-07 01:42:59,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:42:59,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586777420] [2021-12-07 01:42:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:42:59,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:42:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:00,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:00,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 01:43:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 01:43:00,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:00,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586777420] [2021-12-07 01:43:00,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586777420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:43:00,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:43:00,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-07 01:43:00,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237965072] [2021-12-07 01:43:00,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:43:00,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 01:43:00,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:00,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 01:43:00,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-07 01:43:00,113 INFO L87 Difference]: Start difference. First operand 1767 states and 2334 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:43:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:01,011 INFO L93 Difference]: Finished difference Result 3557 states and 4697 transitions. [2021-12-07 01:43:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 01:43:01,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2021-12-07 01:43:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:01,017 INFO L225 Difference]: With dead ends: 3557 [2021-12-07 01:43:01,017 INFO L226 Difference]: Without dead ends: 3555 [2021-12-07 01:43:01,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2021-12-07 01:43:01,017 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 1717 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:01,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1717 Valid, 2200 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 01:43:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2021-12-07 01:43:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 1720. [2021-12-07 01:43:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1568 states have (on average 1.3271683673469388) internal successors, (2081), 1622 states have internal predecessors, (2081), 60 states have call successors, (60), 30 states have call predecessors, (60), 60 states have return successors, (120), 67 states have call predecessors, (120), 60 states have call successors, (120) [2021-12-07 01:43:01,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2261 transitions. [2021-12-07 01:43:01,049 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2261 transitions. Word has length 56 [2021-12-07 01:43:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:01,049 INFO L470 AbstractCegarLoop]: Abstraction has 1720 states and 2261 transitions. [2021-12-07 01:43:01,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:43:01,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2261 transitions. [2021-12-07 01:43:01,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-07 01:43:01,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:01,050 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:01,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-07 01:43:01,050 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:01,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:01,051 INFO L85 PathProgramCache]: Analyzing trace with hash 829418521, now seen corresponding path program 1 times [2021-12-07 01:43:01,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:01,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508626087] [2021-12-07 01:43:01,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:01,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 01:43:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 01:43:01,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:01,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508626087] [2021-12-07 01:43:01,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508626087] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:01,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333214250] [2021-12-07 01:43:01,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:01,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:01,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:01,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:01,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 01:43:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:01,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-07 01:43:01,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:01,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:01,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:01,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:01,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-12-07 01:43:01,683 INFO L354 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2021-12-07 01:43:01,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-12-07 01:43:01,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:43:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:01,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:01,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333214250] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:01,805 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:01,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 24 [2021-12-07 01:43:01,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426960763] [2021-12-07 01:43:01,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:01,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-07 01:43:01,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:01,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-07 01:43:01,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2021-12-07 01:43:01,806 INFO L87 Difference]: Start difference. First operand 1720 states and 2261 transitions. Second operand has 25 states, 24 states have (on average 4.166666666666667) internal successors, (100), 22 states have internal predecessors, (100), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:02,773 INFO L93 Difference]: Finished difference Result 2932 states and 3822 transitions. [2021-12-07 01:43:02,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-07 01:43:02,773 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.166666666666667) internal successors, (100), 22 states have internal predecessors, (100), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2021-12-07 01:43:02,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:02,778 INFO L225 Difference]: With dead ends: 2932 [2021-12-07 01:43:02,778 INFO L226 Difference]: Without dead ends: 2932 [2021-12-07 01:43:02,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=594, Invalid=2162, Unknown=0, NotChecked=0, Total=2756 [2021-12-07 01:43:02,779 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 3275 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3276 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:02,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3276 Valid, 2017 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 01:43:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-12-07 01:43:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1750. [2021-12-07 01:43:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1598 states have (on average 1.3260325406758449) internal successors, (2119), 1649 states have internal predecessors, (2119), 60 states have call successors, (60), 30 states have call predecessors, (60), 60 states have return successors, (120), 70 states have call predecessors, (120), 60 states have call successors, (120) [2021-12-07 01:43:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2299 transitions. [2021-12-07 01:43:02,809 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2299 transitions. Word has length 56 [2021-12-07 01:43:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:02,809 INFO L470 AbstractCegarLoop]: Abstraction has 1750 states and 2299 transitions. [2021-12-07 01:43:02,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.166666666666667) internal successors, (100), 22 states have internal predecessors, (100), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2299 transitions. [2021-12-07 01:43:02,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-07 01:43:02,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:02,810 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:02,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 01:43:03,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2021-12-07 01:43:03,011 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:03,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:03,011 INFO L85 PathProgramCache]: Analyzing trace with hash 829418522, now seen corresponding path program 1 times [2021-12-07 01:43:03,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:03,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753840629] [2021-12-07 01:43:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:03,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 01:43:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:03,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:03,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:03,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753840629] [2021-12-07 01:43:03,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753840629] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:03,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110401761] [2021-12-07 01:43:03,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:03,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:03,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:03,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:03,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 01:43:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:03,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 80 conjunts are in the unsatisfiable core [2021-12-07 01:43:03,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:03,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:03,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:03,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:03,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:03,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:03,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2021-12-07 01:43:03,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:03,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2021-12-07 01:43:04,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:04,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-07 01:43:04,092 INFO L354 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2021-12-07 01:43:04,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-07 01:43:04,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:04,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:43:04,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:04,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2021-12-07 01:43:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:04,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:04,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110401761] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:04,381 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:04,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 29 [2021-12-07 01:43:04,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864544657] [2021-12-07 01:43:04,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:04,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-07 01:43:04,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:04,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-07 01:43:04,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1066, Unknown=0, NotChecked=0, Total=1190 [2021-12-07 01:43:04,382 INFO L87 Difference]: Start difference. First operand 1750 states and 2299 transitions. Second operand has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 27 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:07,497 INFO L93 Difference]: Finished difference Result 3984 states and 5160 transitions. [2021-12-07 01:43:07,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-07 01:43:07,497 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 27 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2021-12-07 01:43:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:07,501 INFO L225 Difference]: With dead ends: 3984 [2021-12-07 01:43:07,502 INFO L226 Difference]: Without dead ends: 3984 [2021-12-07 01:43:07,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1634 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1034, Invalid=5286, Unknown=0, NotChecked=0, Total=6320 [2021-12-07 01:43:07,502 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 4935 mSDsluCounter, 2647 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4936 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:07,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4936 Valid, 2801 Invalid, 2572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 2079 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-07 01:43:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2021-12-07 01:43:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 1770. [2021-12-07 01:43:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1618 states have (on average 1.3238566131025957) internal successors, (2142), 1667 states have internal predecessors, (2142), 60 states have call successors, (60), 30 states have call predecessors, (60), 60 states have return successors, (120), 72 states have call predecessors, (120), 60 states have call successors, (120) [2021-12-07 01:43:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2322 transitions. [2021-12-07 01:43:07,526 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2322 transitions. Word has length 56 [2021-12-07 01:43:07,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:07,527 INFO L470 AbstractCegarLoop]: Abstraction has 1770 states and 2322 transitions. [2021-12-07 01:43:07,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 27 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2322 transitions. [2021-12-07 01:43:07,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-07 01:43:07,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:07,527 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:07,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-07 01:43:07,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:07,729 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:07,730 INFO L85 PathProgramCache]: Analyzing trace with hash -997629707, now seen corresponding path program 1 times [2021-12-07 01:43:07,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:07,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936849781] [2021-12-07 01:43:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:07,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-07 01:43:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:08,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:08,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936849781] [2021-12-07 01:43:08,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936849781] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:08,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034042520] [2021-12-07 01:43:08,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:08,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:08,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:08,247 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:08,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 01:43:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:08,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-07 01:43:08,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:08,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:08,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:08,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-12-07 01:43:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:08,871 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:08,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 64 [2021-12-07 01:43:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:09,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:09,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034042520] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:09,260 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:09,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 31 [2021-12-07 01:43:09,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517585036] [2021-12-07 01:43:09,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:09,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-07 01:43:09,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:09,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-07 01:43:09,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2021-12-07 01:43:09,261 INFO L87 Difference]: Start difference. First operand 1770 states and 2322 transitions. Second operand has 31 states, 31 states have (on average 3.2580645161290325) internal successors, (101), 29 states have internal predecessors, (101), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:13,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:13,651 INFO L93 Difference]: Finished difference Result 4471 states and 5804 transitions. [2021-12-07 01:43:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-07 01:43:13,652 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.2580645161290325) internal successors, (101), 29 states have internal predecessors, (101), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2021-12-07 01:43:13,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:13,656 INFO L225 Difference]: With dead ends: 4471 [2021-12-07 01:43:13,656 INFO L226 Difference]: Without dead ends: 4469 [2021-12-07 01:43:13,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1290 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1077, Invalid=5085, Unknown=0, NotChecked=0, Total=6162 [2021-12-07 01:43:13,657 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 2780 mSDsluCounter, 9092 mSDsCounter, 0 mSdLazyCounter, 3855 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 9605 SdHoareTripleChecker+Invalid, 4080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 3855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:13,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2780 Valid, 9605 Invalid, 4080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 3855 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-07 01:43:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4469 states. [2021-12-07 01:43:13,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4469 to 1721. [2021-12-07 01:43:13,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1573 states have (on average 1.3153210425937698) internal successors, (2069), 1621 states have internal predecessors, (2069), 58 states have call successors, (58), 29 states have call predecessors, (58), 58 states have return successors, (116), 70 states have call predecessors, (116), 58 states have call successors, (116) [2021-12-07 01:43:13,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2243 transitions. [2021-12-07 01:43:13,685 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2243 transitions. Word has length 56 [2021-12-07 01:43:13,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:13,685 INFO L470 AbstractCegarLoop]: Abstraction has 1721 states and 2243 transitions. [2021-12-07 01:43:13,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.2580645161290325) internal successors, (101), 29 states have internal predecessors, (101), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:13,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2243 transitions. [2021-12-07 01:43:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:43:13,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:13,686 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:13,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-07 01:43:13,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:13,888 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:13,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:13,890 INFO L85 PathProgramCache]: Analyzing trace with hash -773789015, now seen corresponding path program 1 times [2021-12-07 01:43:13,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:13,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145594431] [2021-12-07 01:43:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:13,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:14,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 01:43:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:14,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:14,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145594431] [2021-12-07 01:43:14,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145594431] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:14,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403181663] [2021-12-07 01:43:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:14,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:14,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:14,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:14,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 01:43:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:14,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 59 conjunts are in the unsatisfiable core [2021-12-07 01:43:14,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:14,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:14,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:14,557 INFO L354 Elim1Store]: treesize reduction 42, result has 38.2 percent of original size [2021-12-07 01:43:14,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 37 [2021-12-07 01:43:14,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:14,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:43:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:14,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:14,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403181663] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:14,716 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:14,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-12-07 01:43:14,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802416909] [2021-12-07 01:43:14,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:14,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-07 01:43:14,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:14,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-07 01:43:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2021-12-07 01:43:14,718 INFO L87 Difference]: Start difference. First operand 1721 states and 2243 transitions. Second operand has 20 states, 19 states have (on average 5.473684210526316) internal successors, (104), 18 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:15,232 INFO L93 Difference]: Finished difference Result 2226 states and 2871 transitions. [2021-12-07 01:43:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 01:43:15,233 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.473684210526316) internal successors, (104), 18 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57 [2021-12-07 01:43:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:15,236 INFO L225 Difference]: With dead ends: 2226 [2021-12-07 01:43:15,236 INFO L226 Difference]: Without dead ends: 2226 [2021-12-07 01:43:15,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 01:43:15,236 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 745 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 387 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:15,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 2487 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 593 Invalid, 0 Unknown, 387 Unchecked, 0.2s Time] [2021-12-07 01:43:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2021-12-07 01:43:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2077. [2021-12-07 01:43:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1910 states have (on average 1.3052356020942408) internal successors, (2493), 1958 states have internal predecessors, (2493), 67 states have call successors, (67), 34 states have call predecessors, (67), 68 states have return successors, (134), 84 states have call predecessors, (134), 67 states have call successors, (134) [2021-12-07 01:43:15,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2694 transitions. [2021-12-07 01:43:15,267 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2694 transitions. Word has length 57 [2021-12-07 01:43:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:15,268 INFO L470 AbstractCegarLoop]: Abstraction has 2077 states and 2694 transitions. [2021-12-07 01:43:15,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.473684210526316) internal successors, (104), 18 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2694 transitions. [2021-12-07 01:43:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:43:15,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:15,269 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:15,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-07 01:43:15,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-12-07 01:43:15,470 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:15,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:15,470 INFO L85 PathProgramCache]: Analyzing trace with hash -773789014, now seen corresponding path program 1 times [2021-12-07 01:43:15,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:15,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357180954] [2021-12-07 01:43:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:15,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 01:43:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:15,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:15,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357180954] [2021-12-07 01:43:15,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357180954] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:15,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536601744] [2021-12-07 01:43:15,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:15,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:15,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:15,723 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:15,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-07 01:43:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:15,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 77 conjunts are in the unsatisfiable core [2021-12-07 01:43:15,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:15,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:15,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:16,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:16,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:16,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-12-07 01:43:16,457 INFO L354 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2021-12-07 01:43:16,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-12-07 01:43:16,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:16,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:43:16,626 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:16,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 01:43:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:16,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:16,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536601744] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:16,828 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:16,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2021-12-07 01:43:16,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617627848] [2021-12-07 01:43:16,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:16,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-07 01:43:16,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:16,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-07 01:43:16,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2021-12-07 01:43:16,829 INFO L87 Difference]: Start difference. First operand 2077 states and 2694 transitions. Second operand has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:18,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:18,415 INFO L93 Difference]: Finished difference Result 6109 states and 8074 transitions. [2021-12-07 01:43:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-12-07 01:43:18,415 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57 [2021-12-07 01:43:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:18,421 INFO L225 Difference]: With dead ends: 6109 [2021-12-07 01:43:18,421 INFO L226 Difference]: Without dead ends: 6109 [2021-12-07 01:43:18,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=2554, Unknown=0, NotChecked=0, Total=2970 [2021-12-07 01:43:18,422 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1418 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 752 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:18,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1418 Valid, 3298 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1556 Invalid, 0 Unknown, 752 Unchecked, 0.7s Time] [2021-12-07 01:43:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2021-12-07 01:43:18,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 5298. [2021-12-07 01:43:18,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5298 states, 4895 states have (on average 1.3123595505617978) internal successors, (6424), 5008 states have internal predecessors, (6424), 213 states have call successors, (213), 79 states have call predecessors, (213), 158 states have return successors, (426), 210 states have call predecessors, (426), 213 states have call successors, (426) [2021-12-07 01:43:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 7063 transitions. [2021-12-07 01:43:18,489 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 7063 transitions. Word has length 57 [2021-12-07 01:43:18,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:18,489 INFO L470 AbstractCegarLoop]: Abstraction has 5298 states and 7063 transitions. [2021-12-07 01:43:18,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 7063 transitions. [2021-12-07 01:43:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:43:18,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:18,490 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:18,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-07 01:43:18,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-12-07 01:43:18,691 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:18,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:18,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1165513920, now seen corresponding path program 1 times [2021-12-07 01:43:18,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:18,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526301476] [2021-12-07 01:43:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:18,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 01:43:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:43:18,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:18,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526301476] [2021-12-07 01:43:18,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526301476] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:18,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818873902] [2021-12-07 01:43:18,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:18,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:18,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:18,977 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:18,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-07 01:43:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:19,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 73 conjunts are in the unsatisfiable core [2021-12-07 01:43:19,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:19,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:19,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:19,315 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-12-07 01:43:19,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-12-07 01:43:19,390 INFO L354 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2021-12-07 01:43:19,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-12-07 01:43:19,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-07 01:43:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:19,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:19,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818873902] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:19,486 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:19,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 23 [2021-12-07 01:43:19,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533784840] [2021-12-07 01:43:19,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:19,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-07 01:43:19,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:19,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-07 01:43:19,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2021-12-07 01:43:19,487 INFO L87 Difference]: Start difference. First operand 5298 states and 7063 transitions. Second operand has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 20 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:20,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:20,625 INFO L93 Difference]: Finished difference Result 7116 states and 9424 transitions. [2021-12-07 01:43:20,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-07 01:43:20,625 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 20 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57 [2021-12-07 01:43:20,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:20,635 INFO L225 Difference]: With dead ends: 7116 [2021-12-07 01:43:20,635 INFO L226 Difference]: Without dead ends: 7116 [2021-12-07 01:43:20,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=360, Invalid=1532, Unknown=0, NotChecked=0, Total=1892 [2021-12-07 01:43:20,635 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 1708 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 3457 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:20,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1708 Valid, 3457 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-07 01:43:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7116 states. [2021-12-07 01:43:20,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7116 to 5415. [2021-12-07 01:43:20,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5005 states have (on average 1.3102897102897102) internal successors, (6558), 5113 states have internal predecessors, (6558), 216 states have call successors, (216), 81 states have call predecessors, (216), 162 states have return successors, (432), 220 states have call predecessors, (432), 216 states have call successors, (432) [2021-12-07 01:43:20,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 7206 transitions. [2021-12-07 01:43:20,703 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 7206 transitions. Word has length 57 [2021-12-07 01:43:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:20,703 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 7206 transitions. [2021-12-07 01:43:20,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 20 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 7206 transitions. [2021-12-07 01:43:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:43:20,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:20,704 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:20,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-07 01:43:20,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-12-07 01:43:20,904 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:20,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1165513919, now seen corresponding path program 1 times [2021-12-07 01:43:20,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:20,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92172043] [2021-12-07 01:43:20,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:20,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 01:43:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 01:43:21,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:21,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92172043] [2021-12-07 01:43:21,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92172043] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:21,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747625550] [2021-12-07 01:43:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:21,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:21,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:21,290 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:21,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-07 01:43:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:21,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 91 conjunts are in the unsatisfiable core [2021-12-07 01:43:21,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:21,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:21,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 01:43:21,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:21,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:21,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:21,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2021-12-07 01:43:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:21,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-12-07 01:43:21,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:21,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-07 01:43:21,984 INFO L354 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2021-12-07 01:43:21,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-07 01:43:22,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:22,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 01:43:22,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:22,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:43:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:22,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:22,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747625550] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:22,238 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:22,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 25 [2021-12-07 01:43:22,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306529051] [2021-12-07 01:43:22,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:22,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-07 01:43:22,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:22,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-07 01:43:22,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=815, Unknown=0, NotChecked=0, Total=930 [2021-12-07 01:43:22,239 INFO L87 Difference]: Start difference. First operand 5415 states and 7206 transitions. Second operand has 26 states, 25 states have (on average 4.12) internal successors, (103), 22 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:24,141 INFO L93 Difference]: Finished difference Result 8445 states and 11193 transitions. [2021-12-07 01:43:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-07 01:43:24,142 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.12) internal successors, (103), 22 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57 [2021-12-07 01:43:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:24,151 INFO L225 Difference]: With dead ends: 8445 [2021-12-07 01:43:24,151 INFO L226 Difference]: Without dead ends: 8445 [2021-12-07 01:43:24,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=528, Invalid=2228, Unknown=0, NotChecked=0, Total=2756 [2021-12-07 01:43:24,151 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 2451 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:24,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2451 Valid, 3492 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-07 01:43:24,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2021-12-07 01:43:24,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 5495. [2021-12-07 01:43:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5082 states have (on average 1.3079496261314443) internal successors, (6647), 5185 states have internal predecessors, (6647), 217 states have call successors, (217), 82 states have call predecessors, (217), 164 states have return successors, (434), 227 states have call predecessors, (434), 217 states have call successors, (434) [2021-12-07 01:43:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 7298 transitions. [2021-12-07 01:43:24,229 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 7298 transitions. Word has length 57 [2021-12-07 01:43:24,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:24,230 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 7298 transitions. [2021-12-07 01:43:24,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.12) internal successors, (103), 22 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-07 01:43:24,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 7298 transitions. [2021-12-07 01:43:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:43:24,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:24,231 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:24,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-07 01:43:24,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:24,432 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:24,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1940784111, now seen corresponding path program 1 times [2021-12-07 01:43:24,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:24,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477467045] [2021-12-07 01:43:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:24,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:24,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:24,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:24,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:24,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477467045] [2021-12-07 01:43:24,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477467045] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:24,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373091146] [2021-12-07 01:43:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:24,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:24,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:24,922 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:24,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-07 01:43:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:25,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 74 conjunts are in the unsatisfiable core [2021-12-07 01:43:25,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:25,093 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 01:43:25,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 01:43:25,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 01:43:25,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 01:43:25,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:25,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:43:25,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:25,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:43:25,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:25,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:43:25,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:25,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:43:25,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-12-07 01:43:25,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-12-07 01:43:25,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:25,922 INFO L354 Elim1Store]: treesize reduction 31, result has 20.5 percent of original size [2021-12-07 01:43:25,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 85 treesize of output 45 [2021-12-07 01:43:25,927 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:25,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-12-07 01:43:25,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:25,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:26,135 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:26,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 30 [2021-12-07 01:43:26,140 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:26,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2021-12-07 01:43:26,478 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:26,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 38 [2021-12-07 01:43:26,521 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:26,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 2256 treesize of output 2105 [2021-12-07 01:43:26,566 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:26,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2004 treesize of output 1882 [2021-12-07 01:43:26,591 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:26,601 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:26,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1894 treesize of output 1664 [2021-12-07 01:43:53,187 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:53,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 50 [2021-12-07 01:43:53,194 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:53,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2021-12-07 01:43:53,207 INFO L354 Elim1Store]: treesize reduction 3, result has 82.4 percent of original size [2021-12-07 01:43:53,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 112 [2021-12-07 01:43:53,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:53,243 INFO L354 Elim1Store]: treesize reduction 24, result has 67.1 percent of original size [2021-12-07 01:43:53,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 530 treesize of output 526 [2021-12-07 01:43:53,265 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:53,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 512 treesize of output 400 [2021-12-07 01:43:53,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 185 [2021-12-07 01:43:53,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 338 treesize of output 326 [2021-12-07 01:43:53,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 302 [2021-12-07 01:43:54,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373091146] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:54,192 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:43:54,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 31 [2021-12-07 01:43:54,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297778013] [2021-12-07 01:43:54,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:43:54,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-07 01:43:54,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:43:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-07 01:43:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1663, Unknown=18, NotChecked=0, Total=1806 [2021-12-07 01:43:54,193 INFO L87 Difference]: Start difference. First operand 5495 states and 7298 transitions. Second operand has 31 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 31 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:43:55,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:43:55,723 INFO L93 Difference]: Finished difference Result 9384 states and 12651 transitions. [2021-12-07 01:43:55,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 01:43:55,724 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 31 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2021-12-07 01:43:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:43:55,733 INFO L225 Difference]: With dead ends: 9384 [2021-12-07 01:43:55,733 INFO L226 Difference]: Without dead ends: 9384 [2021-12-07 01:43:55,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 80 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=424, Invalid=2864, Unknown=18, NotChecked=0, Total=3306 [2021-12-07 01:43:55,734 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 2485 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 4314 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 171 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:43:55,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2485 Valid, 4314 Invalid, 2058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1721 Invalid, 0 Unknown, 171 Unchecked, 0.8s Time] [2021-12-07 01:43:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9384 states. [2021-12-07 01:43:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9384 to 5924. [2021-12-07 01:43:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 5486 states have (on average 1.3056872037914693) internal successors, (7163), 5592 states have internal predecessors, (7163), 230 states have call successors, (230), 88 states have call predecessors, (230), 176 states have return successors, (460), 243 states have call predecessors, (460), 230 states have call successors, (460) [2021-12-07 01:43:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 7853 transitions. [2021-12-07 01:43:55,811 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 7853 transitions. Word has length 57 [2021-12-07 01:43:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:43:55,812 INFO L470 AbstractCegarLoop]: Abstraction has 5924 states and 7853 transitions. [2021-12-07 01:43:55,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 31 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:43:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 7853 transitions. [2021-12-07 01:43:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:43:55,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:43:55,813 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:43:55,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-07 01:43:56,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-12-07 01:43:56,013 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:43:56,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:43:56,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1239719533, now seen corresponding path program 1 times [2021-12-07 01:43:56,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:43:56,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284862321] [2021-12-07 01:43:56,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:56,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:43:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:43:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:56,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:43:56,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284862321] [2021-12-07 01:43:56,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284862321] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:43:56,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300808488] [2021-12-07 01:43:56,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:43:56,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:43:56,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:56,883 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:43:56,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-07 01:43:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:43:56,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 83 conjunts are in the unsatisfiable core [2021-12-07 01:43:56,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:57,010 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 01:43:57,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 01:43:57,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:57,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:43:57,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 01:43:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 01:43:57,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:43:57,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:43:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-12-07 01:43:57,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-12-07 01:43:57,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:43:57,541 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-12-07 01:43:57,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 51 [2021-12-07 01:43:57,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-12-07 01:43:57,743 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:43:57,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 21 [2021-12-07 01:43:57,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:43:57,750 INFO L354 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2021-12-07 01:43:57,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2021-12-07 01:43:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:43:57,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:43:57,980 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1321 (Array Int Int)) (v_ArrVal_1322 Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_append_one_~list#1.base| v_ArrVal_1321) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base|) (+ (* ~unnamed1~0~LIST_END 4) |c_ULTIMATE.start_append_one_~list#1.offset|) v_ArrVal_1322)) |c_~#list~0.base|) (+ |c_~#list~0.offset| (* ~unnamed1~0~LIST_BEG 4)))) 4) 0)) (forall ((v_ArrVal_1322 Int)) (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base|) (+ (* ~unnamed1~0~LIST_END 4) |c_ULTIMATE.start_append_one_~list#1.offset|) v_ArrVal_1322)))) (select .cse0 (select (select .cse0 |c_~#list~0.base|) (+ |c_~#list~0.offset| (* ~unnamed1~0~LIST_BEG 4))))) 4) 0))) is different from false [2021-12-07 01:44:00,629 INFO L354 Elim1Store]: treesize reduction 28, result has 54.8 percent of original size [2021-12-07 01:44:00,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 99 [2021-12-07 01:44:00,804 INFO L354 Elim1Store]: treesize reduction 126, result has 61.2 percent of original size [2021-12-07 01:44:00,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 2548 treesize of output 2480 [2021-12-07 01:44:00,879 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:00,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3573 treesize of output 3335 [2021-12-07 01:44:09,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 252 [2021-12-07 01:44:10,525 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:44:15,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:44:15,477 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:44:15,545 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:15,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 71 [2021-12-07 01:44:15,668 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:44:15,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 337 treesize of output 289 [2021-12-07 01:44:18,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 206 [2021-12-07 01:44:18,517 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:44:20,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 202 [2021-12-07 01:44:41,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:41,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:41,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:41,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:41,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:42,450 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:42,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 64 [2021-12-07 01:44:42,577 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:42,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 60 [2021-12-07 01:44:42,762 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:42,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 60 [2021-12-07 01:44:42,894 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:42,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 66 [2021-12-07 01:44:43,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:44:43,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 47 [2021-12-07 01:44:43,568 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-07 01:44:43,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 1 [2021-12-07 01:44:43,627 INFO L354 Elim1Store]: treesize reduction 5, result has 87.8 percent of original size [2021-12-07 01:44:43,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 108 [2021-12-07 01:44:44,039 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-12-07 01:44:44,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 1 [2021-12-07 01:44:44,372 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:44:44,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 71 [2021-12-07 01:44:44,467 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-12-07 01:44:44,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 1 [2021-12-07 01:44:44,570 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:44:44,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 71 [2021-12-07 01:44:45,198 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:45,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 28 [2021-12-07 01:44:45,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:45,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:46,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:46,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:48,812 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:48,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2021-12-07 01:44:48,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:49,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:49,602 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:44:49,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:44:49,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:49,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:50,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:50,675 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:44:50,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:44:50,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:51,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:52,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:52,172 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:52,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 30 [2021-12-07 01:44:52,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:44:52,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2021-12-07 01:44:52,534 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:44:52,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 56 [2021-12-07 01:44:52,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:44:52,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 37 [2021-12-07 01:44:53,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:44:53,070 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:44:53,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 44 [2021-12-07 01:44:55,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:55,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:55,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:55,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:56,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:56,380 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:44:56,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 16 [2021-12-07 01:44:56,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:44:56,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:44:56,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:57,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:57,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:44:58,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:11,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:11,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:11,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:12,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:12,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:13,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:13,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:13,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:14,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:16,231 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:45:16,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 205 [2021-12-07 01:45:22,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:22,414 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:45:22,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:45:22,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:23,584 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:45:23,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2021-12-07 01:45:23,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:24,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:24,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:24,953 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:45:24,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 56 [2021-12-07 01:45:25,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:45:25,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 37 [2021-12-07 01:45:25,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:45:25,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2021-12-07 01:45:26,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:45:26,028 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:45:26,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 44 [2021-12-07 01:45:26,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:27,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:27,335 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:45:27,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:45:27,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:32,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:32,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:32,677 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:45:32,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 16 [2021-12-07 01:45:32,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:33,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:45:33,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:45:33,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:34,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:35,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:36,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:45:36,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:46:02,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:46:03,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:46:07,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:46:07,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-12-07 01:46:07,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-12-07 01:46:07,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 36 [2021-12-07 01:46:11,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:46:11,842 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:46:11,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 1 [2021-12-07 01:46:22,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-07 01:46:22,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-12-07 01:46:23,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-12-07 01:46:23,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 36 [2021-12-07 01:46:23,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2021-12-07 01:46:24,128 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:46:24,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2021-12-07 01:46:24,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 63 [2021-12-07 01:46:24,637 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:46:24,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 1 [2021-12-07 01:46:24,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 63 [2021-12-07 01:46:24,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 66 [2021-12-07 01:46:25,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 66 [2021-12-07 01:46:25,156 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:46:25,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 1 [2021-12-07 01:46:25,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:46:29,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:47:32,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:32,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:32,232 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:47:32,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2021-12-07 01:47:32,292 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:47:32,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 28 [2021-12-07 01:47:32,333 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:47:32,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:32,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2021-12-07 01:47:32,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:33,368 INFO L354 Elim1Store]: treesize reduction 5, result has 87.8 percent of original size [2021-12-07 01:47:33,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2021-12-07 01:47:33,475 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:47:33,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 33 [2021-12-07 01:47:33,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:33,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2021-12-07 01:47:33,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:33,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:33,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:47:34,116 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:34,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:34,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:34,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:34,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:34,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:34,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:34,846 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:34,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:34,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:35,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:35,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:35,635 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:35,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 21 [2021-12-07 01:47:35,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:35,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:47:35,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:35,807 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:47:35,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 16 [2021-12-07 01:47:37,859 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:47:37,919 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:37,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:38,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:38,285 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:38,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:46,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:46,621 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:46,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:46,841 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:46,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:47,278 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:47:47,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 56 [2021-12-07 01:47:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:47,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 37 [2021-12-07 01:47:48,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:48,316 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:48,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 21 [2021-12-07 01:47:49,521 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:47:49,639 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:47:49,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 16 [2021-12-07 01:47:49,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:49,955 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:49,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 21 [2021-12-07 01:47:50,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:50,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:50,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:47:50,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:50,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:50,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:50,862 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:50,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:50,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:52,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:52,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:52,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:52,333 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:47:52,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:47:52,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:52,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:47:53,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:54,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:54,999 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:47:54,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 16 [2021-12-07 01:47:55,322 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:47:55,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:55,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2021-12-07 01:47:56,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:47:56,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:47:56,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:47:56,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:48:47,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:48:47,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:48:47,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:48:47,418 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:48:47,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 74 [2021-12-07 01:48:47,910 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:48:47,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:48:48,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:48:48,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:48:48,295 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:48:49,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:48:49,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:48:49,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:48:49,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-12-07 01:48:49,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 36 [2021-12-07 01:48:49,616 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:48:49,786 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:48:49,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2021-12-07 01:50:03,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:50:03,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2021-12-07 01:50:03,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:03,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:50:04,102 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:50:04,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2021-12-07 01:50:04,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-12-07 01:50:04,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:29,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:29,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:50:31,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:50:31,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:31,779 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:50:31,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2021-12-07 01:50:31,848 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:50:31,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-12-07 01:50:32,145 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:50:45,452 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:50:45,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2021-12-07 01:50:45,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-12-07 01:50:45,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:45,940 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:50:46,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:48,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:50:48,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:50:48,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2021-12-07 01:50:49,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:50,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:50:50,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:50:50,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:50:50,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2021-12-07 01:50:50,550 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:50:50,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-12-07 01:50:50,721 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:51:15,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:15,914 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:51:15,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:51:16,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:16,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:16,306 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:51:16,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2021-12-07 01:51:16,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:16,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:51:16,626 INFO L354 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2021-12-07 01:51:16,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 37 [2021-12-07 01:51:16,808 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:51:16,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 28 [2021-12-07 01:51:17,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:18,122 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:51:18,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2021-12-07 01:51:18,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:18,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:18,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:18,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:18,733 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:51:18,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:51:19,392 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:51:19,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 56 [2021-12-07 01:51:19,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:51:19,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 37 [2021-12-07 01:51:19,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:51:20,004 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:51:20,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 21 [2021-12-07 01:51:20,362 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-12-07 01:51:20,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2021-12-07 01:51:20,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:20,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:20,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:21,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:21,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:51:21,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:51:21,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:21,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:51:21,457 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:51:21,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 1 [2021-12-07 01:51:21,694 INFO L354 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2021-12-07 01:51:21,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 16 [2021-12-07 01:51:23,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:25,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:25,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:51:25,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2021-12-07 01:51:25,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:51:26,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:51:26,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:28,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:51:31,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:51:31,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2021-12-07 01:51:31,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 36 [2021-12-07 01:51:31,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 36 [2021-12-07 01:51:31,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-12-07 01:53:00,005 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:00,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6028 treesize of output 5236 [2021-12-07 01:53:13,937 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:13,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 377 treesize of output 367 [2021-12-07 01:53:14,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:14,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:14,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-07 01:53:14,907 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:14,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 127 [2021-12-07 01:53:15,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:53:15,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-12-07 01:53:15,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 30 [2021-12-07 01:53:15,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,107 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:15,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 79 [2021-12-07 01:53:15,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,179 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:15,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 150 [2021-12-07 01:53:15,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-12-07 01:53:15,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,284 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:15,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:15,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 937 treesize of output 643 [2021-12-07 01:53:15,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:15,348 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:15,441 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:15,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 10866 treesize of output 9397 [2021-12-07 01:53:30,189 INFO L354 Elim1Store]: treesize reduction 12, result has 70.7 percent of original size [2021-12-07 01:53:30,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1639 treesize of output 1467 [2021-12-07 01:53:31,025 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:31,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:31,028 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:31,052 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-12-07 01:53:31,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1704 treesize of output 1282 [2021-12-07 01:53:32,116 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,179 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,193 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-12-07 01:53:32,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,234 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,248 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,268 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,322 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,343 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-12-07 01:53:32,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,400 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1553 treesize of output 1213 [2021-12-07 01:53:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1213 treesize of output 985 [2021-12-07 01:53:32,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,735 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 114 [2021-12-07 01:53:32,748 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 146 [2021-12-07 01:53:32,769 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 63 [2021-12-07 01:53:32,784 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2021-12-07 01:53:32,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2021-12-07 01:53:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 17 [2021-12-07 01:53:32,847 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,859 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,867 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,870 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:32,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-12-07 01:53:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2021-12-07 01:53:32,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-12-07 01:53:32,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:32,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:32,943 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:32,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 1 [2021-12-07 01:53:33,224 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:33,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2021-12-07 01:53:33,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:53:33,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 116 [2021-12-07 01:53:33,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-12-07 01:53:33,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2021-12-07 01:53:33,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-12-07 01:53:33,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2021-12-07 01:53:33,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 143 [2021-12-07 01:53:33,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:33,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 133 [2021-12-07 01:53:33,804 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:33,856 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,119 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,127 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 45 [2021-12-07 01:53:34,160 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 278 [2021-12-07 01:53:34,276 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:34,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 243 treesize of output 235 [2021-12-07 01:53:34,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 76 [2021-12-07 01:53:34,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 21 [2021-12-07 01:53:34,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-07 01:53:34,507 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,535 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2021-12-07 01:53:34,637 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 94 [2021-12-07 01:53:34,699 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:34,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:34,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 74 [2021-12-07 01:53:34,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:53:35,091 INFO L354 Elim1Store]: treesize reduction 28, result has 54.8 percent of original size [2021-12-07 01:53:35,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 99 [2021-12-07 01:53:35,116 INFO L354 Elim1Store]: treesize reduction 28, result has 54.8 percent of original size [2021-12-07 01:53:35,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 80 [2021-12-07 01:53:35,138 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-12-07 01:53:35,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 307 treesize of output 305 [2021-12-07 01:53:35,233 INFO L354 Elim1Store]: treesize reduction 124, result has 60.9 percent of original size [2021-12-07 01:53:35,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 2183 treesize of output 2143 [2021-12-07 01:53:35,260 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:35,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3176 treesize of output 2910 [2021-12-07 01:53:35,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2394 treesize of output 2366 [2021-12-07 01:53:35,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2366 treesize of output 2310 [2021-12-07 01:53:35,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5040 treesize of output 4650 [2021-12-07 01:53:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:53:38,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300808488] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:53:38,606 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:53:38,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 20] total 49 [2021-12-07 01:53:38,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24693921] [2021-12-07 01:53:38,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:53:38,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-12-07 01:53:38,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:53:38,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-12-07 01:53:38,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2079, Unknown=12, NotChecked=92, Total=2352 [2021-12-07 01:53:38,607 INFO L87 Difference]: Start difference. First operand 5924 states and 7853 transitions. Second operand has 49 states, 49 states have (on average 2.979591836734694) internal successors, (146), 48 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 01:53:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:53:40,766 INFO L93 Difference]: Finished difference Result 6598 states and 8672 transitions. [2021-12-07 01:53:40,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-07 01:53:40,767 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.979591836734694) internal successors, (146), 48 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2021-12-07 01:53:40,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:53:40,774 INFO L225 Difference]: With dead ends: 6598 [2021-12-07 01:53:40,774 INFO L226 Difference]: Without dead ends: 6598 [2021-12-07 01:53:40,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1313 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=524, Invalid=4580, Unknown=12, NotChecked=140, Total=5256 [2021-12-07 01:53:40,775 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 626 mSDsluCounter, 4893 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 5064 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 836 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:53:40,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 5064 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1625 Invalid, 0 Unknown, 836 Unchecked, 0.8s Time] [2021-12-07 01:53:40,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6598 states. [2021-12-07 01:53:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6598 to 6060. [2021-12-07 01:53:40,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6060 states, 5604 states have (on average 1.3054960742326909) internal successors, (7316), 5719 states have internal predecessors, (7316), 238 states have call successors, (238), 93 states have call predecessors, (238), 186 states have return successors, (476), 247 states have call predecessors, (476), 238 states have call successors, (476) [2021-12-07 01:53:40,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6060 states to 6060 states and 8030 transitions. [2021-12-07 01:53:40,835 INFO L78 Accepts]: Start accepts. Automaton has 6060 states and 8030 transitions. Word has length 57 [2021-12-07 01:53:40,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:53:40,836 INFO L470 AbstractCegarLoop]: Abstraction has 6060 states and 8030 transitions. [2021-12-07 01:53:40,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.979591836734694) internal successors, (146), 48 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 01:53:40,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6060 states and 8030 transitions. [2021-12-07 01:53:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:53:40,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:53:40,837 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:53:40,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-07 01:53:41,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-12-07 01:53:41,037 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:53:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:53:41,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1549059206, now seen corresponding path program 1 times [2021-12-07 01:53:41,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:53:41,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934297346] [2021-12-07 01:53:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:53:41,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:53:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:41,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:53:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:41,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:53:41,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:53:41,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934297346] [2021-12-07 01:53:41,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934297346] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:53:41,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464101695] [2021-12-07 01:53:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:53:41,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:53:41,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:53:41,844 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:53:41,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-07 01:53:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:41,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 82 conjunts are in the unsatisfiable core [2021-12-07 01:53:41,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:53:42,040 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 01:53:42,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 01:53:42,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:53:42,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:42,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:42,553 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-12-07 01:53:42,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 51 [2021-12-07 01:53:42,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-12-07 01:53:42,932 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:42,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:42,938 INFO L354 Elim1Store]: treesize reduction 31, result has 20.5 percent of original size [2021-12-07 01:53:42,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 85 treesize of output 45 [2021-12-07 01:53:42,943 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:42,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-12-07 01:53:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:53:42,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:53:43,316 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:43,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 144 [2021-12-07 01:53:43,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 98 [2021-12-07 01:53:43,586 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:43,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 540 treesize of output 519 [2021-12-07 01:53:45,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464101695] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:53:45,312 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:53:45,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 35 [2021-12-07 01:53:45,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376977078] [2021-12-07 01:53:45,312 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:53:45,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-12-07 01:53:45,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:53:45,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-12-07 01:53:45,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=2033, Unknown=0, NotChecked=0, Total=2162 [2021-12-07 01:53:45,312 INFO L87 Difference]: Start difference. First operand 6060 states and 8030 transitions. Second operand has 35 states, 35 states have (on average 2.9714285714285715) internal successors, (104), 33 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:53:48,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:53:48,676 INFO L93 Difference]: Finished difference Result 9551 states and 12654 transitions. [2021-12-07 01:53:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-07 01:53:48,676 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.9714285714285715) internal successors, (104), 33 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2021-12-07 01:53:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:53:48,684 INFO L225 Difference]: With dead ends: 9551 [2021-12-07 01:53:48,684 INFO L226 Difference]: Without dead ends: 9551 [2021-12-07 01:53:48,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=604, Invalid=5248, Unknown=0, NotChecked=0, Total=5852 [2021-12-07 01:53:48,685 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 1098 mSDsluCounter, 5403 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 5626 SdHoareTripleChecker+Invalid, 3230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 401 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:53:48,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1100 Valid, 5626 Invalid, 3230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2718 Invalid, 0 Unknown, 401 Unchecked, 1.4s Time] [2021-12-07 01:53:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9551 states. [2021-12-07 01:53:48,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9551 to 8028. [2021-12-07 01:53:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8028 states, 7437 states have (on average 1.3007933306440769) internal successors, (9674), 7586 states have internal predecessors, (9674), 313 states have call successors, (313), 123 states have call predecessors, (313), 246 states have return successors, (626), 318 states have call predecessors, (626), 313 states have call successors, (626) [2021-12-07 01:53:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8028 states to 8028 states and 10613 transitions. [2021-12-07 01:53:48,786 INFO L78 Accepts]: Start accepts. Automaton has 8028 states and 10613 transitions. Word has length 57 [2021-12-07 01:53:48,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:53:48,786 INFO L470 AbstractCegarLoop]: Abstraction has 8028 states and 10613 transitions. [2021-12-07 01:53:48,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.9714285714285715) internal successors, (104), 33 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:53:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 8028 states and 10613 transitions. [2021-12-07 01:53:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-07 01:53:48,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:53:48,787 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:53:48,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-07 01:53:48,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-12-07 01:53:48,989 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:53:48,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:53:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash 847994628, now seen corresponding path program 1 times [2021-12-07 01:53:48,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:53:48,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357784867] [2021-12-07 01:53:48,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:53:48,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:53:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:49,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:53:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:53:49,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:53:49,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357784867] [2021-12-07 01:53:49,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357784867] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:53:49,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421558281] [2021-12-07 01:53:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:53:49,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:53:49,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:53:49,504 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:53:49,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-07 01:53:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:49,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 72 conjunts are in the unsatisfiable core [2021-12-07 01:53:49,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:53:49,653 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 01:53:49,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 01:53:49,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 01:53:49,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 01:53:49,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:49,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:53:49,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:49,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-07 01:53:50,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-12-07 01:53:50,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-12-07 01:53:50,307 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:50,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 21 [2021-12-07 01:53:50,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:53:50,315 INFO L354 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2021-12-07 01:53:50,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2021-12-07 01:53:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:53:50,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:53:50,561 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (let ((.cse1 (* ~unnamed1~0~LIST_BEG 4))) (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base|) (+ |c_ULTIMATE.start_append_one_~list#1.offset| .cse1) |c_ULTIMATE.start_append_one_~item~1#1.base|)))) (select .cse0 (select (select .cse0 |c_~#list~0.base|) (+ |c_~#list~0.offset| .cse1))))) 4) 0) (forall ((v_ArrVal_1444 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_append_one_~list#1.base| v_ArrVal_1444) (let ((.cse2 (* ~unnamed1~0~LIST_BEG 4))) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_append_one_~list#1.base|) (+ |c_ULTIMATE.start_append_one_~list#1.offset| .cse2) |c_ULTIMATE.start_append_one_~item~1#1.base|)) |c_~#list~0.base|) (+ |c_~#list~0.offset| .cse2)))) 4) 0))) is different from false [2021-12-07 01:53:50,689 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1444 (Array Int Int)) (v_ArrVal_1441 (Array Int Int)) (v_ArrVal_1440 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1440) |c_ULTIMATE.start_append_one_~list#1.base| v_ArrVal_1444) (let ((.cse1 (* ~unnamed1~0~LIST_BEG 4))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1441))) (store .cse0 |c_ULTIMATE.start_append_one_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_append_one_~list#1.base|) (+ |c_ULTIMATE.start_append_one_~list#1.offset| .cse1) |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) (+ |c_~#list~0.offset| .cse1)))) 4) 0)) (forall ((v_ArrVal_1441 (Array Int Int))) (= (select (let ((.cse3 (* ~unnamed1~0~LIST_BEG 4))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1441))) (store .cse4 |c_ULTIMATE.start_append_one_~list#1.base| (store (select .cse4 |c_ULTIMATE.start_append_one_~list#1.base|) (+ |c_ULTIMATE.start_append_one_~list#1.offset| .cse3) |c_ULTIMATE.start_create_item_~item~0#1.base|))))) (select .cse2 (select (select .cse2 |c_~#list~0.base|) (+ |c_~#list~0.offset| .cse3))))) 4) 0))) is different from false [2021-12-07 01:53:50,706 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:50,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 64 [2021-12-07 01:53:50,814 INFO L354 Elim1Store]: treesize reduction 98, result has 65.4 percent of original size [2021-12-07 01:53:50,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 2982 treesize of output 2871 [2021-12-07 01:53:50,865 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:53:50,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3489 treesize of output 3113 [2021-12-07 01:53:51,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1232 treesize of output 1224 [2021-12-07 01:53:55,523 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:55,527 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:55,668 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:55,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 1 [2021-12-07 01:53:55,730 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:55,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 1 [2021-12-07 01:53:55,874 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:55,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 1 [2021-12-07 01:53:55,989 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:55,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 176 treesize of output 1 [2021-12-07 01:53:56,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:56,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:56,084 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:56,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:56,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:56,368 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:56,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 164 [2021-12-07 01:53:57,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 133 [2021-12-07 01:53:57,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 106 [2021-12-07 01:53:57,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 137 [2021-12-07 01:53:57,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:57,411 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:57,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:57,482 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:57,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:57,530 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:57,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:57,718 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:57,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:57,762 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:58,027 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:58,033 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:58,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 135 [2021-12-07 01:53:58,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 104 [2021-12-07 01:53:58,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 162 [2021-12-07 01:53:58,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 131 [2021-12-07 01:53:59,285 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:59,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 1 [2021-12-07 01:53:59,360 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:59,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 1 [2021-12-07 01:53:59,421 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:59,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 172 treesize of output 1 [2021-12-07 01:53:59,474 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:59,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 1 [2021-12-07 01:53:59,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 135 [2021-12-07 01:53:59,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 178 [2021-12-07 01:53:59,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 88 [2021-12-07 01:53:59,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 131 [2021-12-07 01:53:59,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:53:59,919 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:53:59,956 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-07 01:53:59,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 1 [2021-12-07 01:54:00,352 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:54:02,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2021-12-07 01:54:04,598 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:54:05,475 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:54:06,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2021-12-07 01:54:13,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2021-12-07 01:54:13,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2021-12-07 01:54:13,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-12-07 01:54:13,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2021-12-07 01:54:13,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2021-12-07 01:54:16,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 113 [2021-12-07 01:54:16,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 01:54:16,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-12-07 01:54:16,817 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:54:16,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2021-12-07 01:54:16,843 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-12-07 01:54:16,951 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:54:16,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 336 treesize of output 314 [2021-12-07 01:54:17,911 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:54:17,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 64 [2021-12-07 01:54:17,918 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:54:17,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2021-12-07 01:54:17,941 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-12-07 01:54:17,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 406 treesize of output 406 [2021-12-07 01:54:18,011 INFO L354 Elim1Store]: treesize reduction 103, result has 60.5 percent of original size [2021-12-07 01:54:18,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 2618 treesize of output 2503 [2021-12-07 01:54:18,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2342 treesize of output 2306 [2021-12-07 01:54:18,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2306 treesize of output 2234 [2021-12-07 01:54:18,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3024 treesize of output 2724 [2021-12-07 01:54:19,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2021-12-07 01:54:22,006 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:54:22,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 70 [2021-12-07 01:54:22,541 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:54:22,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421558281] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:54:22,541 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:54:22,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 41 [2021-12-07 01:54:22,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814598951] [2021-12-07 01:54:22,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:54:22,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-07 01:54:22,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:54:22,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-07 01:54:22,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1341, Unknown=17, NotChecked=150, Total=1640 [2021-12-07 01:54:22,542 INFO L87 Difference]: Start difference. First operand 8028 states and 10613 transitions. Second operand has 41 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 41 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 01:54:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:54:26,078 INFO L93 Difference]: Finished difference Result 12459 states and 16528 transitions. [2021-12-07 01:54:26,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-07 01:54:26,079 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 41 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2021-12-07 01:54:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:54:26,089 INFO L225 Difference]: With dead ends: 12459 [2021-12-07 01:54:26,090 INFO L226 Difference]: Without dead ends: 12459 [2021-12-07 01:54:26,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=819, Invalid=4573, Unknown=18, NotChecked=290, Total=5700 [2021-12-07 01:54:26,090 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 1439 mSDsluCounter, 5327 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 4408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1457 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:54:26,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 5579 Invalid, 4408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2848 Invalid, 0 Unknown, 1457 Unchecked, 1.4s Time] [2021-12-07 01:54:26,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12459 states. [2021-12-07 01:54:26,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12459 to 8540. [2021-12-07 01:54:26,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8540 states, 7904 states have (on average 1.2961791497975708) internal successors, (10245), 8072 states have internal predecessors, (10245), 342 states have call successors, (342), 131 states have call predecessors, (342), 262 states have return successors, (684), 336 states have call predecessors, (684), 342 states have call successors, (684) [2021-12-07 01:54:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8540 states to 8540 states and 11271 transitions. [2021-12-07 01:54:26,192 INFO L78 Accepts]: Start accepts. Automaton has 8540 states and 11271 transitions. Word has length 57 [2021-12-07 01:54:26,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:54:26,192 INFO L470 AbstractCegarLoop]: Abstraction has 8540 states and 11271 transitions. [2021-12-07 01:54:26,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 41 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-07 01:54:26,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8540 states and 11271 transitions. [2021-12-07 01:54:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-07 01:54:26,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:54:26,193 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:54:26,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-07 01:54:26,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:54:26,394 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 61 more)] === [2021-12-07 01:54:26,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:54:26,394 INFO L85 PathProgramCache]: Analyzing trace with hash 34764049, now seen corresponding path program 1 times [2021-12-07 01:54:26,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:54:26,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270169758] [2021-12-07 01:54:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:54:26,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:54:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:54:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:54:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:54:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:54:26,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:54:26,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270169758] [2021-12-07 01:54:26,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270169758] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:54:26,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475315211] [2021-12-07 01:54:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:54:26,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:54:26,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:54:26,577 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:54:26,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebed05ee-1511-41f0-9c97-e82f038f33f4/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-07 01:54:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:54:26,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-07 01:54:26,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:54:27,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:54:27,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 01:54:27,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 15 [2021-12-07 01:54:27,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2021-12-07 01:54:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:54:27,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:54:27,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2021-12-07 01:54:27,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 58 [2021-12-07 01:54:29,419 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (= |c_ULTIMATE.start_append_one_~list#1.base| |c_~#list~0.base|)) (.cse1 (= |c_ULTIMATE.start_append_one_~list#1.offset| |c_~#list~0.offset|))) (or (and .cse0 (= (select |c_ULTIMATE.start_main_old_#valid#1| |c_ULTIMATE.start_append_one_~item~1#1.base|) 0) .cse1) (and (or (not .cse0) (not .cse1)) (forall ((v_arrayElimCell_591 Int)) (= (select |c_ULTIMATE.start_main_old_#valid#1| v_arrayElimCell_591) 0))))) (forall ((v_antiDerIndex_entry0_1 Int)) (let ((.cse2 (= |c_ULTIMATE.start_append_one_~list#1.base| |c_~#list~0.base|)) (.cse3 (= |c_ULTIMATE.start_append_one_~list#1.offset| |c_~#list~0.offset|))) (or (and (forall ((v_arrayElimCell_592 Int)) (= (select (store |c_#valid| v_arrayElimCell_592 (select |c_ULTIMATE.start_main_old_#valid#1| v_arrayElimCell_592)) v_antiDerIndex_entry0_1) (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1))) (or (not .cse2) (not .cse3))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| v_antiDerIndex_entry0_1) (select (store |c_#valid| |c_ULTIMATE.start_append_one_~item~1#1.base| (select |c_ULTIMATE.start_main_old_#valid#1| |c_ULTIMATE.start_append_one_~item~1#1.base|)) v_antiDerIndex_entry0_1)) .cse2 .cse3))))) is different from false [2021-12-07 01:55:09,712 WARN L227 SmtUtils]: Spent 40.12s on a formula simplification. DAG size of input: 44 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)