./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G --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 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:26:39,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:26:40,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:26:40,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:26:40,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:26:40,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:26:40,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:26:40,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:26:40,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:26:40,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:26:40,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:26:40,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:26:40,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:26:40,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:26:40,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:26:40,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:26:40,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:26:40,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:26:40,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:26:40,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:26:40,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:26:40,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:26:40,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:26:40,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:26:40,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:26:40,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:26:40,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:26:40,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:26:40,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:26:40,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:26:40,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:26:40,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:26:40,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:26:40,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:26:40,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:26:40,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:26:40,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:26:40,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:26:40,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:26:40,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:26:40,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:26:40,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 12:26:40,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:26:40,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:26:40,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:26:40,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:26:40,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:26:40,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:26:40,238 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:26:40,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:26:40,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:26:40,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:26:40,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:26:40,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:26:40,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:26:40,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:26:40,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:26:40,242 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:26:40,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:26:40,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:26:40,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:26:40,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:26:40,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:26:40,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:26:40,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:26:40,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:26:40,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:26:40,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:26:40,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:26:40,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:26:40,246 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:26:40,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:26:40,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:26:40,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:26:40,250 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_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 [2021-11-23 12:26:40,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:26:40,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:26:40,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:26:40,647 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:26:40,648 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:26:40,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2021-11-23 12:26:40,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/data/bf451bfe5/2d4cb71c331a4239b97c0a51b551a584/FLAGe8acd4470 [2021-11-23 12:26:41,556 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:26:41,557 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2021-11-23 12:26:41,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/data/bf451bfe5/2d4cb71c331a4239b97c0a51b551a584/FLAGe8acd4470 [2021-11-23 12:26:41,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/data/bf451bfe5/2d4cb71c331a4239b97c0a51b551a584 [2021-11-23 12:26:41,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:26:41,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:26:41,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:26:41,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:26:41,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:26:41,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:26:41" (1/1) ... [2021-11-23 12:26:41,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759348d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:41, skipping insertion in model container [2021-11-23 12:26:41,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:26:41" (1/1) ... [2021-11-23 12:26:41,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:26:41,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:26:42,019 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_da8752ae-d3ea-4eed-b072-44918b196077/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c[1719,1732] [2021-11-23 12:26:42,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:26:42,679 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:26:42,717 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_da8752ae-d3ea-4eed-b072-44918b196077/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c[1719,1732] [2021-11-23 12:26:43,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:26:43,114 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:26:43,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43 WrapperNode [2021-11-23 12:26:43,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:26:43,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:26:43,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:26:43,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:26:43,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:43,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:47,931 INFO L137 Inliner]: procedures = 58, calls = 3129, calls flagged for inlining = 960, calls inlined = 13386, statements flattened = 139151 [2021-11-23 12:26:47,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:26:47,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:26:47,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:26:47,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:26:47,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:47,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:49,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:49,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:51,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:52,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:53,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:53,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:26:53,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:26:53,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:26:53,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:26:53,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (1/1) ... [2021-11-23 12:26:53,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:26:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:53,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:26:53,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da8752ae-d3ea-4eed-b072-44918b196077/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:26:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:26:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:26:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:26:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:26:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:26:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:26:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:26:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:26:54,702 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:26:54,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:32:45,703 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:32:46,057 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:32:46,057 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 12:32:46,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:46 BoogieIcfgContainer [2021-11-23 12:32:46,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:32:46,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:32:46,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:32:46,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:32:46,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:26:41" (1/3) ... [2021-11-23 12:32:46,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3000ee9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:46, skipping insertion in model container [2021-11-23 12:32:46,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:43" (2/3) ... [2021-11-23 12:32:46,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3000ee9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:46, skipping insertion in model container [2021-11-23 12:32:46,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:46" (3/3) ... [2021-11-23 12:32:46,115 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-2.c [2021-11-23 12:32:46,121 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:32:46,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-23 12:32:46,347 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:32:46,356 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 [2021-11-23 12:32:46,356 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-23 12:32:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 49847 states, 49819 states have (on average 1.5112105823079547) internal successors, (75287), 49846 states have internal predecessors, (75287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-11-23 12:32:47,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:32:47,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:32:47,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:32:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:32:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1030998792, now seen corresponding path program 1 times [2021-11-23 12:32:47,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:32:47,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71654134] [2021-11-23 12:32:47,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:32:47,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:32:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:32:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:32:47,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:32:47,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71654134] [2021-11-23 12:32:47,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71654134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:32:47,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:32:47,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:32:47,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658059046] [2021-11-23 12:32:47,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:32:47,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:32:47,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:32:47,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:32:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:32:47,962 INFO L87 Difference]: Start difference. First operand has 49847 states, 49819 states have (on average 1.5112105823079547) internal successors, (75287), 49846 states have internal predecessors, (75287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 245.0) internal successors, (490), 2 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:32:49,575 INFO L93 Difference]: Finished difference Result 99689 states and 150568 transitions. [2021-11-23 12:32:49,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:32:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 245.0) internal successors, (490), 2 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 490 [2021-11-23 12:32:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:32:49,863 INFO L225 Difference]: With dead ends: 99689 [2021-11-23 12:32:49,864 INFO L226 Difference]: Without dead ends: 49841 [2021-11-23 12:32:49,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:32:49,953 INFO L933 BasicCegarLoop]: 63206 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, 63206 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:32:49,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:32:50,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49841 states. [2021-11-23 12:32:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49841 to 49841. [2021-11-23 12:32:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49841 states, 49814 states have (on average 1.2687196370498253) internal successors, (63200), 49840 states have internal predecessors, (63200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:51,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49841 states to 49841 states and 63200 transitions. [2021-11-23 12:32:51,894 INFO L78 Accepts]: Start accepts. Automaton has 49841 states and 63200 transitions. Word has length 490 [2021-11-23 12:32:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:32:51,896 INFO L470 AbstractCegarLoop]: Abstraction has 49841 states and 63200 transitions. [2021-11-23 12:32:51,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 245.0) internal successors, (490), 2 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 49841 states and 63200 transitions. [2021-11-23 12:32:51,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-11-23 12:32:51,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:32:51,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:32:51,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:32:51,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:32:51,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:32:51,915 INFO L85 PathProgramCache]: Analyzing trace with hash 866829794, now seen corresponding path program 1 times [2021-11-23 12:32:51,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:32:51,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505084321] [2021-11-23 12:32:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:32:51,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:32:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:32:52,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:32:52,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:32:52,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505084321] [2021-11-23 12:32:52,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505084321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:32:52,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:32:52,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:32:52,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645838036] [2021-11-23 12:32:52,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:32:52,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:32:52,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:32:52,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:32:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:32:52,716 INFO L87 Difference]: Start difference. First operand 49841 states and 63200 transitions. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:32:55,074 INFO L93 Difference]: Finished difference Result 97266 states and 123434 transitions. [2021-11-23 12:32:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:32:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 490 [2021-11-23 12:32:55,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:32:55,220 INFO L225 Difference]: With dead ends: 97266 [2021-11-23 12:32:55,221 INFO L226 Difference]: Without dead ends: 49841 [2021-11-23 12:32:55,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:32:55,288 INFO L933 BasicCegarLoop]: 63152 mSDtfsCounter, 49368 mSDsluCounter, 13592 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49368 SdHoareTripleChecker+Valid, 76744 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 12:32:55,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49368 Valid, 76744 Invalid, 262 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [118 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 12:32:55,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49841 states. [2021-11-23 12:32:56,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49841 to 49841. [2021-11-23 12:32:56,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49841 states, 49814 states have (on average 1.2682378447825913) internal successors, (63176), 49840 states have internal predecessors, (63176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:56,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49841 states to 49841 states and 63176 transitions. [2021-11-23 12:32:56,667 INFO L78 Accepts]: Start accepts. Automaton has 49841 states and 63176 transitions. Word has length 490 [2021-11-23 12:32:56,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:32:56,672 INFO L470 AbstractCegarLoop]: Abstraction has 49841 states and 63176 transitions. [2021-11-23 12:32:56,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 49841 states and 63176 transitions. [2021-11-23 12:32:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-11-23 12:32:56,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:32:56,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:32:56,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:32:56,693 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:32:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:32:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1299602390, now seen corresponding path program 1 times [2021-11-23 12:32:56,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:32:56,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488862122] [2021-11-23 12:32:56,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:32:56,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:32:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:32:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:32:57,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:32:57,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488862122] [2021-11-23 12:32:57,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488862122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:32:57,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:32:57,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:32:57,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594032342] [2021-11-23 12:32:57,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:32:57,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:32:57,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:32:57,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:32:57,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:32:57,341 INFO L87 Difference]: Start difference. First operand 49841 states and 63176 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:32:59,506 INFO L93 Difference]: Finished difference Result 96291 states and 122167 transitions. [2021-11-23 12:32:59,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:32:59,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 491 [2021-11-23 12:32:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:32:59,641 INFO L225 Difference]: With dead ends: 96291 [2021-11-23 12:32:59,642 INFO L226 Difference]: Without dead ends: 47132 [2021-11-23 12:32:59,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:32:59,694 INFO L933 BasicCegarLoop]: 59675 mSDtfsCounter, 0 mSDsluCounter, 59504 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119179 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 12:32:59,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 119179 Invalid, 241 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [73 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 12:32:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47132 states. [2021-11-23 12:33:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47132 to 47105. [2021-11-23 12:33:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47105 states, 47078 states have (on average 1.2680232805131908) internal successors, (59696), 47104 states have internal predecessors, (59696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:00,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47105 states to 47105 states and 59696 transitions. [2021-11-23 12:33:00,535 INFO L78 Accepts]: Start accepts. Automaton has 47105 states and 59696 transitions. Word has length 491 [2021-11-23 12:33:00,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:00,537 INFO L470 AbstractCegarLoop]: Abstraction has 47105 states and 59696 transitions. [2021-11-23 12:33:00,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:00,537 INFO L276 IsEmpty]: Start isEmpty. Operand 47105 states and 59696 transitions. [2021-11-23 12:33:00,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-11-23 12:33:00,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:00,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:00,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:33:00,544 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:00,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:00,545 INFO L85 PathProgramCache]: Analyzing trace with hash 619119074, now seen corresponding path program 1 times [2021-11-23 12:33:00,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:00,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646496321] [2021-11-23 12:33:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:00,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:01,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:01,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646496321] [2021-11-23 12:33:01,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646496321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:01,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:01,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:33:01,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703369927] [2021-11-23 12:33:01,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:01,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:33:01,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:01,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:33:01,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:01,611 INFO L87 Difference]: Start difference. First operand 47105 states and 59696 transitions. Second operand has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:07,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:07,621 INFO L93 Difference]: Finished difference Result 93421 states and 118499 transitions. [2021-11-23 12:33:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:33:07,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 491 [2021-11-23 12:33:07,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:07,725 INFO L225 Difference]: With dead ends: 93421 [2021-11-23 12:33:07,725 INFO L226 Difference]: Without dead ends: 46998 [2021-11-23 12:33:07,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:07,766 INFO L933 BasicCegarLoop]: 59428 mSDtfsCounter, 8584 mSDsluCounter, 108998 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8584 SdHoareTripleChecker+Valid, 168426 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:07,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8584 Valid, 168426 Invalid, 1606 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [159 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-23 12:33:07,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46998 states. [2021-11-23 12:33:08,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46998 to 46996. [2021-11-23 12:33:08,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46996 states, 46969 states have (on average 1.2674530009154974) internal successors, (59531), 46995 states have internal predecessors, (59531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46996 states to 46996 states and 59531 transitions. [2021-11-23 12:33:08,842 INFO L78 Accepts]: Start accepts. Automaton has 46996 states and 59531 transitions. Word has length 491 [2021-11-23 12:33:08,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:08,843 INFO L470 AbstractCegarLoop]: Abstraction has 46996 states and 59531 transitions. [2021-11-23 12:33:08,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:08,844 INFO L276 IsEmpty]: Start isEmpty. Operand 46996 states and 59531 transitions. [2021-11-23 12:33:08,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2021-11-23 12:33:08,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:08,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:08,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 12:33:08,849 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:08,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:08,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1422780167, now seen corresponding path program 1 times [2021-11-23 12:33:08,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:08,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566522730] [2021-11-23 12:33:08,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:08,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:09,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:09,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566522730] [2021-11-23 12:33:09,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566522730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:09,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:09,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:33:09,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269513074] [2021-11-23 12:33:09,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:09,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:33:09,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:33:09,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:33:09,427 INFO L87 Difference]: Start difference. First operand 46996 states and 59531 transitions. Second operand has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:11,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:11,737 INFO L93 Difference]: Finished difference Result 108218 states and 136920 transitions. [2021-11-23 12:33:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:33:11,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 492 [2021-11-23 12:33:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:12,294 INFO L225 Difference]: With dead ends: 108218 [2021-11-23 12:33:12,295 INFO L226 Difference]: Without dead ends: 106263 [2021-11-23 12:33:12,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:12,314 INFO L933 BasicCegarLoop]: 59484 mSDtfsCounter, 164638 mSDsluCounter, 79513 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164638 SdHoareTripleChecker+Valid, 138997 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:12,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164638 Valid, 138997 Invalid, 308 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [133 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 12:33:12,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106263 states. [2021-11-23 12:33:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106263 to 57985. [2021-11-23 12:33:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57985 states, 57958 states have (on average 1.264846958142103) internal successors, (73308), 57984 states have internal predecessors, (73308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57985 states to 57985 states and 73308 transitions. [2021-11-23 12:33:14,038 INFO L78 Accepts]: Start accepts. Automaton has 57985 states and 73308 transitions. Word has length 492 [2021-11-23 12:33:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:14,042 INFO L470 AbstractCegarLoop]: Abstraction has 57985 states and 73308 transitions. [2021-11-23 12:33:14,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 57985 states and 73308 transitions. [2021-11-23 12:33:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-11-23 12:33:14,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:14,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:14,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 12:33:14,053 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:14,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:14,055 INFO L85 PathProgramCache]: Analyzing trace with hash 71435283, now seen corresponding path program 1 times [2021-11-23 12:33:14,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:14,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622896430] [2021-11-23 12:33:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:14,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:14,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:14,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622896430] [2021-11-23 12:33:14,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622896430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:14,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:14,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:33:14,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427701045] [2021-11-23 12:33:14,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:14,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:33:14,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:14,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:33:14,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:14,570 INFO L87 Difference]: Start difference. First operand 57985 states and 73308 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:19,858 INFO L93 Difference]: Finished difference Result 112571 states and 142416 transitions. [2021-11-23 12:33:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 12:33:19,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 519 [2021-11-23 12:33:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:19,955 INFO L225 Difference]: With dead ends: 112571 [2021-11-23 12:33:19,955 INFO L226 Difference]: Without dead ends: 57759 [2021-11-23 12:33:20,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:33:20,017 INFO L933 BasicCegarLoop]: 57997 mSDtfsCounter, 112222 mSDsluCounter, 60353 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112222 SdHoareTripleChecker+Valid, 118350 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:20,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112222 Valid, 118350 Invalid, 1519 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [131 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 12:33:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57759 states. [2021-11-23 12:33:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57759 to 57757. [2021-11-23 12:33:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57757 states, 57730 states have (on average 1.264818984929846) internal successors, (73018), 57756 states have internal predecessors, (73018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57757 states to 57757 states and 73018 transitions. [2021-11-23 12:33:21,373 INFO L78 Accepts]: Start accepts. Automaton has 57757 states and 73018 transitions. Word has length 519 [2021-11-23 12:33:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:21,374 INFO L470 AbstractCegarLoop]: Abstraction has 57757 states and 73018 transitions. [2021-11-23 12:33:21,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:21,374 INFO L276 IsEmpty]: Start isEmpty. Operand 57757 states and 73018 transitions. [2021-11-23 12:33:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-11-23 12:33:21,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:21,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:21,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 12:33:21,384 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:21,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:21,385 INFO L85 PathProgramCache]: Analyzing trace with hash 451288967, now seen corresponding path program 1 times [2021-11-23 12:33:21,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:21,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773959465] [2021-11-23 12:33:21,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:21,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:22,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:22,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773959465] [2021-11-23 12:33:22,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773959465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:22,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:22,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:33:22,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697005851] [2021-11-23 12:33:22,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:22,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:33:22,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:22,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:33:22,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:33:22,355 INFO L87 Difference]: Start difference. First operand 57757 states and 73018 transitions. Second operand has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:25,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:25,844 INFO L93 Difference]: Finished difference Result 112447 states and 142257 transitions. [2021-11-23 12:33:25,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 12:33:25,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 519 [2021-11-23 12:33:25,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:26,229 INFO L225 Difference]: With dead ends: 112447 [2021-11-23 12:33:26,229 INFO L226 Difference]: Without dead ends: 57749 [2021-11-23 12:33:26,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:33:26,257 INFO L933 BasicCegarLoop]: 58599 mSDtfsCounter, 3990 mSDsluCounter, 56814 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3990 SdHoareTripleChecker+Valid, 115413 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:26,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3990 Valid, 115413 Invalid, 724 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-23 12:33:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57749 states. [2021-11-23 12:33:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57749 to 57749. [2021-11-23 12:33:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57749 states, 57722 states have (on average 1.2647170922698452) internal successors, (73002), 57748 states have internal predecessors, (73002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57749 states to 57749 states and 73002 transitions. [2021-11-23 12:33:27,222 INFO L78 Accepts]: Start accepts. Automaton has 57749 states and 73002 transitions. Word has length 519 [2021-11-23 12:33:27,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:27,223 INFO L470 AbstractCegarLoop]: Abstraction has 57749 states and 73002 transitions. [2021-11-23 12:33:27,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 57749 states and 73002 transitions. [2021-11-23 12:33:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-11-23 12:33:27,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:27,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:27,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 12:33:27,235 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:27,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:27,235 INFO L85 PathProgramCache]: Analyzing trace with hash -767610245, now seen corresponding path program 1 times [2021-11-23 12:33:27,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:27,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999718524] [2021-11-23 12:33:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:27,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:28,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:28,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999718524] [2021-11-23 12:33:28,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999718524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:28,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:28,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:33:28,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392465818] [2021-11-23 12:33:28,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:28,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:33:28,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:28,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:33:28,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:28,142 INFO L87 Difference]: Start difference. First operand 57749 states and 73002 transitions. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:34,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:34,185 INFO L93 Difference]: Finished difference Result 113613 states and 143687 transitions. [2021-11-23 12:33:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:33:34,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 519 [2021-11-23 12:33:34,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:34,245 INFO L225 Difference]: With dead ends: 113613 [2021-11-23 12:33:34,245 INFO L226 Difference]: Without dead ends: 58692 [2021-11-23 12:33:34,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:33:34,270 INFO L933 BasicCegarLoop]: 58879 mSDtfsCounter, 8182 mSDsluCounter, 164831 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8182 SdHoareTripleChecker+Valid, 223710 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:34,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8182 Valid, 223710 Invalid, 1588 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [63 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-23 12:33:34,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58692 states. [2021-11-23 12:33:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58692 to 57521. [2021-11-23 12:33:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57521 states, 57494 states have (on average 1.2646884892336592) internal successors, (72712), 57520 states have internal predecessors, (72712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57521 states to 57521 states and 72712 transitions. [2021-11-23 12:33:35,583 INFO L78 Accepts]: Start accepts. Automaton has 57521 states and 72712 transitions. Word has length 519 [2021-11-23 12:33:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:35,584 INFO L470 AbstractCegarLoop]: Abstraction has 57521 states and 72712 transitions. [2021-11-23 12:33:35,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 57521 states and 72712 transitions. [2021-11-23 12:33:35,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2021-11-23 12:33:35,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:35,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:35,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 12:33:35,595 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:35,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1093311545, now seen corresponding path program 1 times [2021-11-23 12:33:35,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:35,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053970667] [2021-11-23 12:33:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:35,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:36,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:36,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053970667] [2021-11-23 12:33:36,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053970667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:36,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:36,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:33:36,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958741683] [2021-11-23 12:33:36,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:36,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:33:36,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:36,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:33:36,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:36,155 INFO L87 Difference]: Start difference. First operand 57521 states and 72712 transitions. Second operand has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:42,701 INFO L93 Difference]: Finished difference Result 111983 states and 141657 transitions. [2021-11-23 12:33:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:33:42,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 520 [2021-11-23 12:33:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:42,783 INFO L225 Difference]: With dead ends: 111983 [2021-11-23 12:33:42,783 INFO L226 Difference]: Without dead ends: 57517 [2021-11-23 12:33:42,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:33:42,817 INFO L933 BasicCegarLoop]: 58304 mSDtfsCounter, 6253 mSDsluCounter, 164668 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6253 SdHoareTripleChecker+Valid, 222972 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:42,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6253 Valid, 222972 Invalid, 1517 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [53 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-23 12:33:42,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57517 states. [2021-11-23 12:33:43,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57517 to 57517. [2021-11-23 12:33:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57517 states, 57490 states have (on average 1.2646373282309966) internal successors, (72704), 57516 states have internal predecessors, (72704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57517 states to 57517 states and 72704 transitions. [2021-11-23 12:33:43,935 INFO L78 Accepts]: Start accepts. Automaton has 57517 states and 72704 transitions. Word has length 520 [2021-11-23 12:33:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:43,935 INFO L470 AbstractCegarLoop]: Abstraction has 57517 states and 72704 transitions. [2021-11-23 12:33:43,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:43,936 INFO L276 IsEmpty]: Start isEmpty. Operand 57517 states and 72704 transitions. [2021-11-23 12:33:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2021-11-23 12:33:43,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:43,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:43,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 12:33:43,944 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1290110704, now seen corresponding path program 1 times [2021-11-23 12:33:43,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:43,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786724001] [2021-11-23 12:33:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:43,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:44,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:44,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786724001] [2021-11-23 12:33:44,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786724001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:44,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:44,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:33:44,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028439348] [2021-11-23 12:33:44,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:44,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:44,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:44,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:44,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:44,466 INFO L87 Difference]: Start difference. First operand 57517 states and 72704 transitions. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:47,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:47,776 INFO L93 Difference]: Finished difference Result 114353 states and 144655 transitions. [2021-11-23 12:33:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:47,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 521 [2021-11-23 12:33:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:47,842 INFO L225 Difference]: With dead ends: 114353 [2021-11-23 12:33:47,842 INFO L226 Difference]: Without dead ends: 57517 [2021-11-23 12:33:47,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:47,878 INFO L933 BasicCegarLoop]: 57563 mSDtfsCounter, 57452 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57452 SdHoareTripleChecker+Valid, 57563 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:47,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57452 Valid, 57563 Invalid, 765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [382 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 12:33:47,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57517 states. [2021-11-23 12:33:48,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57517 to 57517. [2021-11-23 12:33:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57517 states, 57490 states have (on average 1.2563750217429117) internal successors, (72229), 57516 states have internal predecessors, (72229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57517 states to 57517 states and 72229 transitions. [2021-11-23 12:33:49,122 INFO L78 Accepts]: Start accepts. Automaton has 57517 states and 72229 transitions. Word has length 521 [2021-11-23 12:33:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:49,123 INFO L470 AbstractCegarLoop]: Abstraction has 57517 states and 72229 transitions. [2021-11-23 12:33:49,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 57517 states and 72229 transitions. [2021-11-23 12:33:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2021-11-23 12:33:49,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:49,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:49,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 12:33:49,132 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1485436345, now seen corresponding path program 1 times [2021-11-23 12:33:49,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:49,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416494391] [2021-11-23 12:33:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:49,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:49,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:49,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416494391] [2021-11-23 12:33:49,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416494391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:49,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:49,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:33:49,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143366428] [2021-11-23 12:33:49,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:49,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:33:49,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:49,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:33:49,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:33:49,693 INFO L87 Difference]: Start difference. First operand 57517 states and 72229 transitions. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:51,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:51,743 INFO L93 Difference]: Finished difference Result 105610 states and 132743 transitions. [2021-11-23 12:33:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:33:51,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 523 [2021-11-23 12:33:51,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:51,857 INFO L225 Difference]: With dead ends: 105610 [2021-11-23 12:33:51,857 INFO L226 Difference]: Without dead ends: 105606 [2021-11-23 12:33:51,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:51,882 INFO L933 BasicCegarLoop]: 57938 mSDtfsCounter, 65436 mSDsluCounter, 99628 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65436 SdHoareTripleChecker+Valid, 157566 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:51,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65436 Valid, 157566 Invalid, 106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 12:33:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105606 states. [2021-11-23 12:33:53,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105606 to 57513. [2021-11-23 12:33:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57513 states, 57488 states have (on average 1.2563491511271918) internal successors, (72225), 57512 states have internal predecessors, (72225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:53,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57513 states to 57513 states and 72225 transitions. [2021-11-23 12:33:53,131 INFO L78 Accepts]: Start accepts. Automaton has 57513 states and 72225 transitions. Word has length 523 [2021-11-23 12:33:53,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:53,131 INFO L470 AbstractCegarLoop]: Abstraction has 57513 states and 72225 transitions. [2021-11-23 12:33:53,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:53,132 INFO L276 IsEmpty]: Start isEmpty. Operand 57513 states and 72225 transitions. [2021-11-23 12:33:53,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2021-11-23 12:33:53,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:53,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:53,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 12:33:53,138 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-23 12:33:53,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:53,139 INFO L85 PathProgramCache]: Analyzing trace with hash 22549866, now seen corresponding path program 1 times [2021-11-23 12:33:53,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:53,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795041020] [2021-11-23 12:33:53,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:53,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:53,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:53,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:53,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795041020] [2021-11-23 12:33:53,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795041020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:53,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:53,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:33:53,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941301110] [2021-11-23 12:33:53,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:53,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:33:53,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:53,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:33:53,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:53,566 INFO L87 Difference]: Start difference. First operand 57513 states and 72225 transitions. Second operand has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:59,214 INFO L93 Difference]: Finished difference Result 113651 states and 142820 transitions. [2021-11-23 12:33:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:33:59,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 529 [2021-11-23 12:33:59,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:59,313 INFO L225 Difference]: With dead ends: 113651 [2021-11-23 12:33:59,313 INFO L226 Difference]: Without dead ends: 57514 [2021-11-23 12:33:59,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:33:59,352 INFO L933 BasicCegarLoop]: 57277 mSDtfsCounter, 112707 mSDsluCounter, 55223 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112707 SdHoareTripleChecker+Valid, 112500 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:59,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112707 Valid, 112500 Invalid, 1458 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [145 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-23 12:33:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57514 states.