./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array24_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/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_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array24_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b41c571dabcbc4670dde65107f8da5b879f13435b678b4e9a9cdcc7ef0066cf6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:53:34,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:53:34,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:53:34,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:53:34,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:53:34,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:53:34,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:53:34,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:53:34,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:53:34,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:53:34,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:53:34,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:53:34,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:53:34,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:53:34,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:53:34,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:53:34,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:53:34,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:53:34,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:53:34,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:53:34,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:53:34,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:53:34,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:53:34,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:53:34,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:53:34,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:53:34,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:53:34,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:53:34,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:53:34,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:53:34,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:53:34,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:53:34,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:53:34,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:53:34,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:53:34,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:53:34,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:53:34,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:53:34,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:53:34,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:53:34,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:53:34,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:53:34,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:53:34,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:53:34,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:53:34,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:53:34,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:53:34,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:53:34,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:53:34,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:53:34,168 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:53:34,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:53:34,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:53:34,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:53:34,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:53:34,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:53:34,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:53:34,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:53:34,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:53:34,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:53:34,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:53:34,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:53:34,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:53:34,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:53:34,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:53:34,170 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:53:34,171 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:53:34,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:53:34,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:53:34,171 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_64e23aaa-080a-4dd5-b55a-41c1862a1869/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b41c571dabcbc4670dde65107f8da5b879f13435b678b4e9a9cdcc7ef0066cf6 [2021-12-07 00:53:34,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:53:34,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:53:34,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:53:34,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:53:34,375 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:53:34,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-patterns/array24_pattern.c [2021-12-07 00:53:34,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/data/3bb42e243/ee54280bfbc44160a7e5d61a88c62676/FLAGc7b369012 [2021-12-07 00:53:34,789 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:53:34,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/sv-benchmarks/c/array-patterns/array24_pattern.c [2021-12-07 00:53:34,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/data/3bb42e243/ee54280bfbc44160a7e5d61a88c62676/FLAGc7b369012 [2021-12-07 00:53:34,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/data/3bb42e243/ee54280bfbc44160a7e5d61a88c62676 [2021-12-07 00:53:34,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:53:34,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:53:34,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:53:34,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:53:34,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:53:34,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:34,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7375b3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34, skipping insertion in model container [2021-12-07 00:53:34,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:34,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:53:34,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:53:34,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/sv-benchmarks/c/array-patterns/array24_pattern.c[1359,1372] [2021-12-07 00:53:34,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:53:34,969 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:53:34,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/sv-benchmarks/c/array-patterns/array24_pattern.c[1359,1372] [2021-12-07 00:53:34,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:53:34,995 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:53:34,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34 WrapperNode [2021-12-07 00:53:34,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:53:34,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:53:34,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:53:34,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:53:35,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,025 INFO L137 Inliner]: procedures = 17, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2021-12-07 00:53:35,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:53:35,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:53:35,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:53:35,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:53:35,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:53:35,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:53:35,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:53:35,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:53:35,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (1/1) ... [2021-12-07 00:53:35,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:53:35,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:53:35,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:53:35,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:53:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2021-12-07 00:53:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2021-12-07 00:53:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:53:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 00:53:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 00:53:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:53:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:53:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:53:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:53:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:53:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:53:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:53:35,154 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:53:35,156 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:53:35,299 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:53:35,305 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:53:35,306 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-07 00:53:35,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:53:35 BoogieIcfgContainer [2021-12-07 00:53:35,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:53:35,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:53:35,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:53:35,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:53:35,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:53:34" (1/3) ... [2021-12-07 00:53:35,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68424a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:53:35, skipping insertion in model container [2021-12-07 00:53:35,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:53:34" (2/3) ... [2021-12-07 00:53:35,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68424a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:53:35, skipping insertion in model container [2021-12-07 00:53:35,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:53:35" (3/3) ... [2021-12-07 00:53:35,316 INFO L111 eAbstractionObserver]: Analyzing ICFG array24_pattern.c [2021-12-07 00:53:35,321 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:53:35,321 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:53:35,367 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:53:35,372 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 00:53:35,373 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:53:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:53:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-07 00:53:35,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:53:35,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:53:35,398 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:53:35,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:53:35,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2136211159, now seen corresponding path program 1 times [2021-12-07 00:53:35,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:53:35,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203982249] [2021-12-07 00:53:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:35,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:53:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:53:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:53:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:53:35,541 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 00:53:35,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:53:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203982249] [2021-12-07 00:53:35,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203982249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:53:35,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:53:35,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:53:35,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295581018] [2021-12-07 00:53:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:53:35,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:53:35,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:53:35,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:53:35,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:53:35,577 INFO L87 Difference]: Start difference. First operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 00:53:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:53:35,596 INFO L93 Difference]: Finished difference Result 77 states and 115 transitions. [2021-12-07 00:53:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:53:35,598 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 00:53:35,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:53:35,603 INFO L225 Difference]: With dead ends: 77 [2021-12-07 00:53:35,603 INFO L226 Difference]: Without dead ends: 36 [2021-12-07 00:53:35,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 00:53:35,610 INFO L933 BasicCegarLoop]: 50 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, 50 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 00:53:35,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:53:35,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-07 00:53:35,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-12-07 00:53:35,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:53:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2021-12-07 00:53:35,641 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 15 [2021-12-07 00:53:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:53:35,641 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-12-07 00:53:35,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 00:53:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2021-12-07 00:53:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-07 00:53:35,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:53:35,643 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 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 00:53:35,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:53:35,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:53:35,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:53:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash -699940082, now seen corresponding path program 1 times [2021-12-07 00:53:35,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:53:35,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193523361] [2021-12-07 00:53:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:35,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:53:35,663 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:53:35,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270805439] [2021-12-07 00:53:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:35,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:35,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:53:35,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:53:35,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:53:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:53:35,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:53:35,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:53:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-07 00:53:35,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:53:35,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:53:35,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193523361] [2021-12-07 00:53:35,839 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:53:35,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270805439] [2021-12-07 00:53:35,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270805439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:53:35,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:53:35,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:53:35,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077722453] [2021-12-07 00:53:35,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:53:35,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:53:35,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:53:35,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:53:35,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:53:35,842 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-07 00:53:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:53:35,954 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2021-12-07 00:53:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:53:35,955 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2021-12-07 00:53:35,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:53:35,956 INFO L225 Difference]: With dead ends: 76 [2021-12-07 00:53:35,956 INFO L226 Difference]: Without dead ends: 48 [2021-12-07 00:53:35,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:53:35,958 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:53:35,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 92 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:53:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-12-07 00:53:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2021-12-07 00:53:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:53:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2021-12-07 00:53:35,965 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 35 [2021-12-07 00:53:35,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:53:35,966 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2021-12-07 00:53:35,966 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-07 00:53:35,966 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2021-12-07 00:53:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-07 00:53:35,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:53:35,967 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:53:35,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:53:36,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:36,169 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:53:36,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:53:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1308831759, now seen corresponding path program 1 times [2021-12-07 00:53:36,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:53:36,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329656995] [2021-12-07 00:53:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:36,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:53:36,211 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:53:36,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676448620] [2021-12-07 00:53:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:36,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:53:36,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:53:36,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:53:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:53:36,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:53:36,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:53:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 00:53:36,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:53:36,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:53:36,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329656995] [2021-12-07 00:53:36,394 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:53:36,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676448620] [2021-12-07 00:53:36,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676448620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:53:36,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:53:36,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:53:36,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701584898] [2021-12-07 00:53:36,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:53:36,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:53:36,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:53:36,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:53:36,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:53:36,396 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-07 00:53:36,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:53:36,433 INFO L93 Difference]: Finished difference Result 79 states and 99 transitions. [2021-12-07 00:53:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:53:36,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2021-12-07 00:53:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:53:36,435 INFO L225 Difference]: With dead ends: 79 [2021-12-07 00:53:36,435 INFO L226 Difference]: Without dead ends: 46 [2021-12-07 00:53:36,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 00:53:36,437 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:53:36,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 76 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:53:36,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-12-07 00:53:36,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2021-12-07 00:53:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:53:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2021-12-07 00:53:36,444 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 41 [2021-12-07 00:53:36,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:53:36,444 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2021-12-07 00:53:36,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-07 00:53:36,445 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2021-12-07 00:53:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-07 00:53:36,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:53:36,446 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:53:36,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 00:53:36,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:36,648 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:53:36,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:53:36,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1300942485, now seen corresponding path program 1 times [2021-12-07 00:53:36,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:53:36,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548294948] [2021-12-07 00:53:36,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:36,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:53:36,699 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:53:36,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442286047] [2021-12-07 00:53:36,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:36,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:36,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:53:36,703 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:53:36,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:53:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:53:36,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-07 00:53:36,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:53:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-07 00:53:36,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:53:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-07 00:53:37,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:53:37,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548294948] [2021-12-07 00:53:37,067 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:53:37,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442286047] [2021-12-07 00:53:37,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442286047] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:53:37,068 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:53:37,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-12-07 00:53:37,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455558087] [2021-12-07 00:53:37,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:53:37,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 00:53:37,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:53:37,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 00:53:37,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:53:37,069 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:53:37,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:53:37,213 INFO L93 Difference]: Finished difference Result 85 states and 105 transitions. [2021-12-07 00:53:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 00:53:37,213 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2021-12-07 00:53:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:53:37,214 INFO L225 Difference]: With dead ends: 85 [2021-12-07 00:53:37,214 INFO L226 Difference]: Without dead ends: 50 [2021-12-07 00:53:37,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-12-07 00:53:37,215 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:53:37,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 151 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:53:37,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-07 00:53:37,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-12-07 00:53:37,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:53:37,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2021-12-07 00:53:37,221 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 45 [2021-12-07 00:53:37,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:53:37,221 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-12-07 00:53:37,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:53:37,221 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2021-12-07 00:53:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-07 00:53:37,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:53:37,223 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-07 00:53:37,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 00:53:37,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:37,424 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:53:37,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:53:37,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1544610617, now seen corresponding path program 2 times [2021-12-07 00:53:37,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:53:37,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676204492] [2021-12-07 00:53:37,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:37,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:53:37,459 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:53:37,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266689617] [2021-12-07 00:53:37,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:53:37,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:37,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:53:37,461 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:53:37,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 00:53:37,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:53:37,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:53:37,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:53:37,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:53:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-07 00:53:37,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:53:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-07 00:53:37,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:53:37,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676204492] [2021-12-07 00:53:37,668 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:53:37,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266689617] [2021-12-07 00:53:37,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266689617] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:53:37,669 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:53:37,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-12-07 00:53:37,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061522444] [2021-12-07 00:53:37,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:53:37,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 00:53:37,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:53:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 00:53:37,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:53:37,671 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:53:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:53:37,786 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2021-12-07 00:53:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:53:37,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2021-12-07 00:53:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:53:37,787 INFO L225 Difference]: With dead ends: 106 [2021-12-07 00:53:37,787 INFO L226 Difference]: Without dead ends: 74 [2021-12-07 00:53:37,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:53:37,789 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 50 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:53:37,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 198 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:53:37,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-07 00:53:37,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2021-12-07 00:53:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:53:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2021-12-07 00:53:37,796 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 49 [2021-12-07 00:53:37,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:53:37,796 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2021-12-07 00:53:37,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:53:37,796 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2021-12-07 00:53:37,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-07 00:53:37,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:53:37,797 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2021-12-07 00:53:37,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 00:53:37,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:37,999 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:53:38,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:53:38,001 INFO L85 PathProgramCache]: Analyzing trace with hash -725408594, now seen corresponding path program 3 times [2021-12-07 00:53:38,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:53:38,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446879843] [2021-12-07 00:53:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:53:38,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:53:38,037 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:53:38,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290585292] [2021-12-07 00:53:38,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:53:38,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:53:38,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:53:38,039 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:53:38,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 00:53:40,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-12-07 00:53:40,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:53:40,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 88 conjunts are in the unsatisfiable core [2021-12-07 00:53:40,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:53:40,921 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 0 case distinctions, treesize of input 60 treesize of output 55 [2021-12-07 00:53:40,926 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 00:53:40,930 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 19 treesize of output 18 [2021-12-07 00:53:41,000 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 0 case distinctions, treesize of input 71 treesize of output 64 [2021-12-07 00:53:41,017 INFO L354 Elim1Store]: treesize reduction 116, result has 18.9 percent of original size [2021-12-07 00:53:41,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 83 [2021-12-07 00:53:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,039 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 40 treesize of output 17 [2021-12-07 00:53:41,169 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 0 case distinctions, treesize of input 76 treesize of output 67 [2021-12-07 00:53:41,201 INFO L354 Elim1Store]: treesize reduction 174, result has 12.6 percent of original size [2021-12-07 00:53:41,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 66 treesize of output 88 [2021-12-07 00:53:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 19 [2021-12-07 00:53:41,338 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 0 case distinctions, treesize of input 95 treesize of output 84 [2021-12-07 00:53:41,385 INFO L354 Elim1Store]: treesize reduction 364, result has 13.9 percent of original size [2021-12-07 00:53:41,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 83 treesize of output 125 [2021-12-07 00:53:41,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:41,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 39 [2021-12-07 00:53:42,590 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 0 case distinctions, treesize of input 133 treesize of output 116 [2021-12-07 00:53:42,738 INFO L354 Elim1Store]: treesize reduction 667, result has 9.6 percent of original size [2021-12-07 00:53:42,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 115 treesize of output 140 [2021-12-07 00:53:42,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:42,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:42,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:42,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:42,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:42,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:53:42,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 40 [2021-12-07 00:53:43,478 INFO L354 Elim1Store]: treesize reduction 380, result has 20.0 percent of original size [2021-12-07 00:53:43,478 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 7 new quantified variables, introduced 21 case distinctions, treesize of input 131 treesize of output 130 [2021-12-07 00:53:44,037 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 8 proven. 53 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:53:44,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:53:58,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:53:58,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446879843] [2021-12-07 00:53:58,257 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:53:58,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290585292] [2021-12-07 00:53:58,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290585292] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:53:58,257 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:53:58,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2021-12-07 00:53:58,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804676009] [2021-12-07 00:53:58,257 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-07 00:53:58,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-07 00:53:58,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:53:58,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-07 00:53:58,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=2651, Unknown=7, NotChecked=0, Total=3192 [2021-12-07 00:53:58,260 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 39 states have internal predecessors, (55), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-07 00:54:00,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:00,199 INFO L93 Difference]: Finished difference Result 154 states and 186 transitions. [2021-12-07 00:54:00,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-07 00:54:00,200 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.375) internal successors, (55), 39 states have internal predecessors, (55), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 63 [2021-12-07 00:54:00,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:00,203 INFO L225 Difference]: With dead ends: 154 [2021-12-07 00:54:00,203 INFO L226 Difference]: Without dead ends: 148 [2021-12-07 00:54:00,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 26 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2012 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=819, Invalid=4004, Unknown=7, NotChecked=0, Total=4830 [2021-12-07 00:54:00,206 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 108 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 290 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:00,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 428 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 775 Invalid, 0 Unknown, 290 Unchecked, 1.0s Time] [2021-12-07 00:54:00,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-12-07 00:54:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 112. [2021-12-07 00:54:00,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 98 states have (on average 1.2040816326530612) internal successors, (118), 98 states have internal predecessors, (118), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-12-07 00:54:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2021-12-07 00:54:00,224 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 63 [2021-12-07 00:54:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:00,225 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2021-12-07 00:54:00,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 1.375) internal successors, (55), 39 states have internal predecessors, (55), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-07 00:54:00,225 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2021-12-07 00:54:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-07 00:54:00,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:00,227 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2021-12-07 00:54:00,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 00:54:00,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:00,429 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash -506553876, now seen corresponding path program 1 times [2021-12-07 00:54:00,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:00,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285876106] [2021-12-07 00:54:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:00,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:00,468 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:00,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326699323] [2021-12-07 00:54:00,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:00,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:00,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:00,471 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:00,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 00:54:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:00,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:54:00,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-07 00:54:00,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:54:00,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:00,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285876106] [2021-12-07 00:54:00,561 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:00,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326699323] [2021-12-07 00:54:00,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326699323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:54:00,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:54:00,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:54:00,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305371817] [2021-12-07 00:54:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:54:00,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:54:00,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:00,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:54:00,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:54:00,562 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-07 00:54:00,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:00,575 INFO L93 Difference]: Finished difference Result 153 states and 185 transitions. [2021-12-07 00:54:00,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:54:00,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2021-12-07 00:54:00,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:00,576 INFO L225 Difference]: With dead ends: 153 [2021-12-07 00:54:00,576 INFO L226 Difference]: Without dead ends: 114 [2021-12-07 00:54:00,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 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 00:54:00,577 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:00,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:54:00,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-12-07 00:54:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2021-12-07 00:54:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.1919191919191918) internal successors, (118), 99 states have internal predecessors, (118), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-12-07 00:54:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 135 transitions. [2021-12-07 00:54:00,587 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 135 transitions. Word has length 63 [2021-12-07 00:54:00,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:00,587 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 135 transitions. [2021-12-07 00:54:00,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-07 00:54:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 135 transitions. [2021-12-07 00:54:00,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-07 00:54:00,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:00,589 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2021-12-07 00:54:00,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-07 00:54:00,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-07 00:54:00,790 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:00,792 INFO L85 PathProgramCache]: Analyzing trace with hash 236205423, now seen corresponding path program 1 times [2021-12-07 00:54:00,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:00,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108323961] [2021-12-07 00:54:00,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:00,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:00,821 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:00,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143765687] [2021-12-07 00:54:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:00,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:00,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:00,825 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:00,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 00:54:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:00,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-07 00:54:00,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-07 00:54:00,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:54:00,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:00,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108323961] [2021-12-07 00:54:00,934 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:00,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143765687] [2021-12-07 00:54:00,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143765687] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:54:00,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:54:00,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:54:00,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101110952] [2021-12-07 00:54:00,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:54:00,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:54:00,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:00,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:54:00,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:54:00,936 INFO L87 Difference]: Start difference. First operand 113 states and 135 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-07 00:54:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:00,957 INFO L93 Difference]: Finished difference Result 163 states and 198 transitions. [2021-12-07 00:54:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:54:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2021-12-07 00:54:00,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:00,958 INFO L225 Difference]: With dead ends: 163 [2021-12-07 00:54:00,958 INFO L226 Difference]: Without dead ends: 123 [2021-12-07 00:54:00,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 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 00:54:00,959 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 5 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:00,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 193 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:54:00,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-07 00:54:00,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 117. [2021-12-07 00:54:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 102 states have (on average 1.1862745098039216) internal successors, (121), 102 states have internal predecessors, (121), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2021-12-07 00:54:00,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 140 transitions. [2021-12-07 00:54:00,970 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 140 transitions. Word has length 63 [2021-12-07 00:54:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:00,970 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 140 transitions. [2021-12-07 00:54:00,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-07 00:54:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 140 transitions. [2021-12-07 00:54:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-07 00:54:00,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:00,971 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 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] [2021-12-07 00:54:00,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-07 00:54:01,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:01,173 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:01,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:01,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1172698608, now seen corresponding path program 4 times [2021-12-07 00:54:01,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:01,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678712386] [2021-12-07 00:54:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:01,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:01,204 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:01,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847495676] [2021-12-07 00:54:01,205 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-07 00:54:01,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:01,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:01,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 00:54:01,257 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-07 00:54:01,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:54:01,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:54:01,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:54:01,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:54:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-07 00:54:01,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:01,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678712386] [2021-12-07 00:54:01,417 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:01,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847495676] [2021-12-07 00:54:01,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847495676] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:54:01,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:54:01,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-07 00:54:01,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915807611] [2021-12-07 00:54:01,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:54:01,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:54:01,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:01,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:54:01,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:54:01,419 INFO L87 Difference]: Start difference. First operand 117 states and 140 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:01,557 INFO L93 Difference]: Finished difference Result 322 states and 399 transitions. [2021-12-07 00:54:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:54:01,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-12-07 00:54:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:01,559 INFO L225 Difference]: With dead ends: 322 [2021-12-07 00:54:01,559 INFO L226 Difference]: Without dead ends: 226 [2021-12-07 00:54:01,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-12-07 00:54:01,560 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 178 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:01,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 136 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:54:01,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-12-07 00:54:01,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 168. [2021-12-07 00:54:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 146 states have (on average 1.1712328767123288) internal successors, (171), 146 states have internal predecessors, (171), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-07 00:54:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2021-12-07 00:54:01,574 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 65 [2021-12-07 00:54:01,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:01,574 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2021-12-07 00:54:01,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2021-12-07 00:54:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-07 00:54:01,575 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:01,575 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 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] [2021-12-07 00:54:01,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-07 00:54:01,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:01,777 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:01,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:01,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2109828498, now seen corresponding path program 5 times [2021-12-07 00:54:01,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:01,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545719440] [2021-12-07 00:54:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:01,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:01,799 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:01,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [488315686] [2021-12-07 00:54:01,799 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-07 00:54:01,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:01,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:01,800 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:01,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-07 00:54:01,925 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-12-07 00:54:01,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:54:01,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:54:01,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-07 00:54:02,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:54:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-07 00:54:02,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:02,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545719440] [2021-12-07 00:54:02,069 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:02,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488315686] [2021-12-07 00:54:02,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488315686] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:54:02,069 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:54:02,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-12-07 00:54:02,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638930477] [2021-12-07 00:54:02,070 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:54:02,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:54:02,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:54:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:54:02,071 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:02,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:02,320 INFO L93 Difference]: Finished difference Result 354 states and 421 transitions. [2021-12-07 00:54:02,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-07 00:54:02,320 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2021-12-07 00:54:02,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:02,322 INFO L225 Difference]: With dead ends: 354 [2021-12-07 00:54:02,322 INFO L226 Difference]: Without dead ends: 234 [2021-12-07 00:54:02,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2021-12-07 00:54:02,323 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 85 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:02,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 157 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:54:02,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-12-07 00:54:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 181. [2021-12-07 00:54:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 159 states have (on average 1.1761006289308176) internal successors, (187), 159 states have internal predecessors, (187), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-07 00:54:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2021-12-07 00:54:02,335 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 67 [2021-12-07 00:54:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:02,336 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2021-12-07 00:54:02,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:02,336 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2021-12-07 00:54:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:54:02,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:02,337 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2021-12-07 00:54:02,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-07 00:54:02,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-07 00:54:02,538 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:02,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:02,539 INFO L85 PathProgramCache]: Analyzing trace with hash -834557719, now seen corresponding path program 1 times [2021-12-07 00:54:02,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:02,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448401511] [2021-12-07 00:54:02,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:02,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:02,567 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:02,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246824296] [2021-12-07 00:54:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:02,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:02,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:02,571 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:02,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-07 00:54:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:02,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:54:02,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:02,703 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-07 00:54:02,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:54:02,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:02,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448401511] [2021-12-07 00:54:02,704 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:02,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246824296] [2021-12-07 00:54:02,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246824296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:54:02,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:54:02,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:54:02,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901019640] [2021-12-07 00:54:02,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:54:02,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:54:02,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:02,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:54:02,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:54:02,705 INFO L87 Difference]: Start difference. First operand 181 states and 216 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:54:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:02,729 INFO L93 Difference]: Finished difference Result 282 states and 338 transitions. [2021-12-07 00:54:02,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:54:02,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-07 00:54:02,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:02,730 INFO L225 Difference]: With dead ends: 282 [2021-12-07 00:54:02,730 INFO L226 Difference]: Without dead ends: 185 [2021-12-07 00:54:02,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 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 00:54:02,731 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 5 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:02,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 164 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:54:02,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-07 00:54:02,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181. [2021-12-07 00:54:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 159 states have (on average 1.1572327044025157) internal successors, (184), 159 states have internal predecessors, (184), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-07 00:54:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 213 transitions. [2021-12-07 00:54:02,743 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 213 transitions. Word has length 69 [2021-12-07 00:54:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:02,743 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 213 transitions. [2021-12-07 00:54:02,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 00:54:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 213 transitions. [2021-12-07 00:54:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-07 00:54:02,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:02,744 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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 00:54:02,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-07 00:54:02,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:02,946 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:02,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1276732650, now seen corresponding path program 1 times [2021-12-07 00:54:02,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:02,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556370006] [2021-12-07 00:54:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:02,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:02,978 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:02,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114695490] [2021-12-07 00:54:02,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:02,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:02,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:02,981 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:02,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-07 00:54:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:03,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 00:54:03,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-07 00:54:03,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:54:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-07 00:54:03,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556370006] [2021-12-07 00:54:03,403 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114695490] [2021-12-07 00:54:03,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114695490] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:54:03,403 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:54:03,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 17 [2021-12-07 00:54:03,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191840317] [2021-12-07 00:54:03,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:54:03,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-07 00:54:03,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:03,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-07 00:54:03,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:54:03,405 INFO L87 Difference]: Start difference. First operand 181 states and 213 transitions. Second operand has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2021-12-07 00:54:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:03,695 INFO L93 Difference]: Finished difference Result 255 states and 289 transitions. [2021-12-07 00:54:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-07 00:54:03,696 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 69 [2021-12-07 00:54:03,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:03,697 INFO L225 Difference]: With dead ends: 255 [2021-12-07 00:54:03,697 INFO L226 Difference]: Without dead ends: 209 [2021-12-07 00:54:03,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2021-12-07 00:54:03,698 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:03,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 324 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:54:03,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-12-07 00:54:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 186. [2021-12-07 00:54:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.1358024691358024) internal successors, (184), 164 states have internal predecessors, (184), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2021-12-07 00:54:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 212 transitions. [2021-12-07 00:54:03,712 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 212 transitions. Word has length 69 [2021-12-07 00:54:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:03,712 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 212 transitions. [2021-12-07 00:54:03,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2021-12-07 00:54:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 212 transitions. [2021-12-07 00:54:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-07 00:54:03,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:03,713 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-07 00:54:03,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-07 00:54:03,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-07 00:54:03,914 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:03,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:03,915 INFO L85 PathProgramCache]: Analyzing trace with hash -698104178, now seen corresponding path program 6 times [2021-12-07 00:54:03,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:03,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661952893] [2021-12-07 00:54:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:03,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:03,946 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:03,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713273058] [2021-12-07 00:54:03,947 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-07 00:54:03,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:03,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:03,949 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:03,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-07 00:54:04,436 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-12-07 00:54:04,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:54:04,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:54:04,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 77 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-07 00:54:04,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:54:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 56 proven. 35 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-07 00:54:04,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:04,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661952893] [2021-12-07 00:54:04,581 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:04,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713273058] [2021-12-07 00:54:04,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713273058] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:54:04,582 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:54:04,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-07 00:54:04,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228884097] [2021-12-07 00:54:04,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:54:04,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:54:04,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:04,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:54:04,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:54:04,583 INFO L87 Difference]: Start difference. First operand 186 states and 212 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:04,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:04,717 INFO L93 Difference]: Finished difference Result 261 states and 289 transitions. [2021-12-07 00:54:04,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:54:04,718 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2021-12-07 00:54:04,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:04,718 INFO L225 Difference]: With dead ends: 261 [2021-12-07 00:54:04,719 INFO L226 Difference]: Without dead ends: 164 [2021-12-07 00:54:04,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-07 00:54:04,719 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 46 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:04,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 219 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:54:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-07 00:54:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2021-12-07 00:54:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 138 states have (on average 1.108695652173913) internal successors, (153), 139 states have internal predecessors, (153), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2021-12-07 00:54:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 173 transitions. [2021-12-07 00:54:04,730 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 173 transitions. Word has length 74 [2021-12-07 00:54:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:04,730 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 173 transitions. [2021-12-07 00:54:04,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 173 transitions. [2021-12-07 00:54:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-07 00:54:04,731 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:04,731 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-07 00:54:04,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-07 00:54:04,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:04,931 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:04,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:04,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1833960014, now seen corresponding path program 7 times [2021-12-07 00:54:04,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:04,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475828140] [2021-12-07 00:54:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:04,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:04,943 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:04,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496264413] [2021-12-07 00:54:04,943 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-07 00:54:04,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:04,944 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:04,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-07 00:54:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:04,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 00:54:04,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 89 proven. 17 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-07 00:54:05,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:54:05,155 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 81 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-07 00:54:05,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:54:05,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475828140] [2021-12-07 00:54:05,155 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-07 00:54:05,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496264413] [2021-12-07 00:54:05,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496264413] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:54:05,156 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:54:05,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-07 00:54:05,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378918278] [2021-12-07 00:54:05,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:54:05,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 00:54:05,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:54:05,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:54:05,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:54:05,157 INFO L87 Difference]: Start difference. First operand 155 states and 173 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:05,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:54:05,315 INFO L93 Difference]: Finished difference Result 165 states and 182 transitions. [2021-12-07 00:54:05,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-07 00:54:05,315 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2021-12-07 00:54:05,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:54:05,316 INFO L225 Difference]: With dead ends: 165 [2021-12-07 00:54:05,316 INFO L226 Difference]: Without dead ends: 99 [2021-12-07 00:54:05,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2021-12-07 00:54:05,317 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 45 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:54:05,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 217 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:54:05,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-07 00:54:05,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2021-12-07 00:54:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 83 states have (on average 1.1325301204819278) internal successors, (94), 83 states have internal predecessors, (94), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2021-12-07 00:54:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-12-07 00:54:05,322 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 77 [2021-12-07 00:54:05,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:54:05,323 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-12-07 00:54:05,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-07 00:54:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2021-12-07 00:54:05,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-07 00:54:05,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:54:05,323 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 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 00:54:05,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-07 00:54:05,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-07 00:54:05,524 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:54:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:54:05,525 INFO L85 PathProgramCache]: Analyzing trace with hash 599706749, now seen corresponding path program 8 times [2021-12-07 00:54:05,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:54:05,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568251648] [2021-12-07 00:54:05,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:05,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:54:05,538 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-07 00:54:05,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084224191] [2021-12-07 00:54:05,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:54:05,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:54:05,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:54:05,539 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:54:05,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e23aaa-080a-4dd5-b55a-41c1862a1869/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-07 00:54:06,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:54:06,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:54:06,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 132 conjunts are in the unsatisfiable core [2021-12-07 00:54:06,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:54:06,687 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 0 case distinctions, treesize of input 60 treesize of output 55 [2021-12-07 00:54:06,692 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 21 treesize of output 20 [2021-12-07 00:54:06,697 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 19 treesize of output 18 [2021-12-07 00:54:06,750 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 0 case distinctions, treesize of input 79 treesize of output 72 [2021-12-07 00:54:06,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:54:06,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 97 [2021-12-07 00:54:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,768 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 36 treesize of output 7 [2021-12-07 00:54:06,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,791 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 36 treesize of output 7 [2021-12-07 00:54:06,860 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 0 case distinctions, treesize of input 93 treesize of output 84 [2021-12-07 00:54:06,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:54:06,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 120 [2021-12-07 00:54:06,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:06,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 40 [2021-12-07 00:54:07,063 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 0 case distinctions, treesize of input 115 treesize of output 104 [2021-12-07 00:54:07,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 165 [2021-12-07 00:54:07,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 44 [2021-12-07 00:54:07,195 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 0 case distinctions, treesize of input 130 treesize of output 117 [2021-12-07 00:54:07,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 194 [2021-12-07 00:54:07,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 43 [2021-12-07 00:54:07,356 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 0 case distinctions, treesize of input 142 treesize of output 127 [2021-12-07 00:54:07,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 221 [2021-12-07 00:54:07,384 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 00:54:07,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 99 [2021-12-07 00:54:07,721 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 0 case distinctions, treesize of input 126 treesize of output 109 [2021-12-07 00:54:07,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 184 [2021-12-07 00:54:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 56 [2021-12-07 00:54:07,958 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 0 case distinctions, treesize of input 145 treesize of output 126 [2021-12-07 00:54:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:07,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 221 [2021-12-07 00:54:08,014 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-07 00:54:08,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 56 [2021-12-07 00:54:08,314 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 0 case distinctions, treesize of input 153 treesize of output 132 [2021-12-07 00:54:08,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 45 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 240 [2021-12-07 00:54:08,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:08,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 73 [2021-12-07 00:54:10,834 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 0 case distinctions, treesize of input 203 treesize of output 176 [2021-12-07 00:54:10,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:10,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,190 INFO L354 Elim1Store]: treesize reduction 671, result has 10.7 percent of original size [2021-12-07 00:54:11,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 16 case distinctions, treesize of input 175 treesize of output 275 [2021-12-07 00:54:11,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:11,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 86 [2021-12-07 00:54:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:54:15,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:54:15,241 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:54:15,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 141 treesize of output 50 [2021-12-07 00:54:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 11 proven. 222 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:54:15,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:03:30,339 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 55 treesize of output 51 [2021-12-07 01:03:31,180 INFO L244 Elim1Store]: Index analysis took 400 ms [2021-12-07 01:03:32,242 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:03:32,242 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 58 [2021-12-07 01:03:33,423 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 17 treesize of output 4 [2021-12-07 01:03:36,263 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 4 [2021-12-07 01:08:48,974 WARN L227 SmtUtils]: Spent 5.14m on a formula simplification. DAG size of input: 598 DAG size of output: 250 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-07 01:08:48,978 INFO L354 Elim1Store]: treesize reduction 1904, result has 33.2 percent of original size [2021-12-07 01:08:49,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input -3240191269623512537 treesize of output -3240191269623511621