/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_add-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:08:53,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:08:53,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:08:53,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:08:53,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:08:53,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:08:53,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:08:53,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:08:53,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:08:53,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:08:53,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:08:53,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:08:53,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:08:53,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:08:53,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:08:53,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:08:53,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:08:53,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:08:53,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:08:53,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:08:53,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:08:53,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:08:53,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:08:53,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:08:53,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:08:53,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:08:53,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:08:53,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:08:53,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:08:53,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:08:53,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:08:53,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:08:53,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:08:53,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:08:53,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:08:53,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:08:53,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:08:53,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:08:53,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:08:53,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:08:53,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:08:53,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:08:53,489 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:08:53,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:08:53,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:08:53,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:08:53,492 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:08:53,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:08:53,493 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:08:53,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:08:53,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:08:53,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:08:53,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:08:53,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:08:53,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:08:53,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:08:53,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:08:53,496 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:08:53,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:08:53,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:08:53,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:08:53,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:08:53,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:08:53,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:08:53,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:08:53,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:08:53,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:08:53,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:08:53,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:08:53,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:08:53,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:08:53,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:08:53,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:08:53,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:08:53,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:08:53,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:08:53,994 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:08:53,995 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-2.i [2020-09-24 17:08:54,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4f90866e/a70490dbc64b45dab1942a745c0cccbf/FLAG817e17b14 [2020-09-24 17:08:54,731 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:08:54,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-2.i [2020-09-24 17:08:54,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4f90866e/a70490dbc64b45dab1942a745c0cccbf/FLAG817e17b14 [2020-09-24 17:08:54,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4f90866e/a70490dbc64b45dab1942a745c0cccbf [2020-09-24 17:08:54,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:08:55,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:08:55,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:08:55,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:08:55,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:08:55,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:08:54" (1/1) ... [2020-09-24 17:08:55,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a89726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55, skipping insertion in model container [2020-09-24 17:08:55,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:08:54" (1/1) ... [2020-09-24 17:08:55,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:08:55,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:08:55,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:08:55,643 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:08:55,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:08:55,780 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:08:55,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55 WrapperNode [2020-09-24 17:08:55,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:08:55,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:08:55,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:08:55,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:08:55,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... [2020-09-24 17:08:55,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... [2020-09-24 17:08:55,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... [2020-09-24 17:08:55,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... [2020-09-24 17:08:55,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... [2020-09-24 17:08:55,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... [2020-09-24 17:08:55,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... [2020-09-24 17:08:55,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:08:55,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:08:55,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:08:55,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:08:55,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:08:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:08:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:08:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 17:08:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 17:08:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:08:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 17:08:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-24 17:08:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-24 17:08:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-24 17:08:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-24 17:08:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-24 17:08:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-24 17:08:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-24 17:08:55,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-24 17:08:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-24 17:08:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 17:08:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-24 17:08:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-24 17:08:55,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-24 17:08:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-24 17:08:55,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:08:55,963 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 17:08:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 17:08:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 17:08:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 17:08:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 17:08:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 17:08:55,964 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 17:08:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 17:08:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 17:08:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 17:08:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 17:08:55,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 17:08:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 17:08:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 17:08:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 17:08:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 17:08:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 17:08:55,966 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 17:08:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 17:08:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 17:08:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 17:08:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 17:08:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 17:08:55,967 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 17:08:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 17:08:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 17:08:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 17:08:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 17:08:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 17:08:55,968 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 17:08:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 17:08:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 17:08:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 17:08:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 17:08:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 17:08:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 17:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 17:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 17:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 17:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 17:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 17:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 17:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 17:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 17:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 17:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 17:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 17:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 17:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 17:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 17:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 17:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 17:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 17:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 17:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 17:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 17:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 17:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 17:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 17:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 17:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 17:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 17:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 17:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 17:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 17:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 17:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 17:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 17:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 17:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 17:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 17:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 17:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 17:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 17:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 17:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 17:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 17:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 17:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 17:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 17:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 17:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 17:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 17:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 17:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 17:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 17:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 17:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 17:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 17:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 17:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 17:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 17:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 17:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 17:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 17:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 17:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 17:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 17:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 17:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 17:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-24 17:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-24 17:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-24 17:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-24 17:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-24 17:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-24 17:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-24 17:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-24 17:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-24 17:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 17:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-24 17:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-24 17:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-24 17:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-24 17:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:08:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 17:08:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:08:56,749 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:08:56,750 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 17:08:56,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:08:56 BoogieIcfgContainer [2020-09-24 17:08:56,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:08:56,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:08:56,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:08:56,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:08:56,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:08:54" (1/3) ... [2020-09-24 17:08:56,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0ad35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:08:56, skipping insertion in model container [2020-09-24 17:08:56,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:08:55" (2/3) ... [2020-09-24 17:08:56,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0ad35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:08:56, skipping insertion in model container [2020-09-24 17:08:56,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:08:56" (3/3) ... [2020-09-24 17:08:56,774 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-2.i [2020-09-24 17:08:56,789 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:08:56,803 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:08:56,825 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:08:56,870 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:08:56,870 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:08:56,870 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:08:56,870 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:08:56,871 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:08:56,871 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:08:56,871 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:08:56,871 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:08:56,898 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-24 17:08:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 17:08:56,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:56,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:56,911 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:08:56,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:56,918 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-09-24 17:08:56,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:56,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72975771] [2020-09-24 17:08:56,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:57,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:57,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:57,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 17:08:57,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-24 17:08:57,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:08:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-24 17:08:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:08:57,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:08:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:57,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:57,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:08:57,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 17:08:57,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:57,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:57,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 17:08:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:57,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:57,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:08:57,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 17:08:57,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:08:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:08:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:08:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:57,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:08:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:57,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:57,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:57,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:08:57,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 17:08:57,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:08:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 17:08:57,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:57,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 17:08:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:57,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:57,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:57,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:08:57,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:57,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:08:57,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:08:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 17:08:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:08:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 17:08:57,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72975771] [2020-09-24 17:08:57,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:08:57,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 17:08:57,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297898184] [2020-09-24 17:08:58,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:08:58,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:58,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:08:58,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:08:58,027 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-09-24 17:08:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:58,633 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-09-24 17:08:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:08:58,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 17:08:58,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:58,651 INFO L225 Difference]: With dead ends: 184 [2020-09-24 17:08:58,651 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 17:08:58,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:08:58,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 17:08:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-24 17:08:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 17:08:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-24 17:08:58,728 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-09-24 17:08:58,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:58,729 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-24 17:08:58,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:08:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-24 17:08:58,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 17:08:58,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:08:58,733 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:08:58,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:08:58,734 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:08:58,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:08:58,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-09-24 17:08:58,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:08:58,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861727870] [2020-09-24 17:08:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:08:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:58,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:59,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:03,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:03,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 17:09:03,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:09:03,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4377 [2020-09-24 17:09:03,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 17:09:03,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 17:09:03,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 17:09:03,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:03,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:09:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:03,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:03,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:03,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:09:03,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:09:03,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:09:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:09:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:09:03,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 17:09:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:03,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:03,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 17:09:03,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:03,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 17:09:03,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 17:09:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:09:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 17:09:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:03,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:09:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:03,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:03,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:03,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 17:09:03,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:03,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 17:09:03,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:09:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 17:09:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:03,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 17:09:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:03,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:03,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:09:03,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:09:03,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 17:09:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:03,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 17:09:03,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861727870] [2020-09-24 17:09:03,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:09:03,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 17:09:03,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433491598] [2020-09-24 17:09:03,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 17:09:03,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:09:03,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 17:09:03,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:09:03,822 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 13 states. [2020-09-24 17:09:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:09:05,471 INFO L93 Difference]: Finished difference Result 180 states and 191 transitions. [2020-09-24 17:09:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 17:09:05,472 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-09-24 17:09:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:09:05,475 INFO L225 Difference]: With dead ends: 180 [2020-09-24 17:09:05,475 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 17:09:05,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 17:09:05,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 17:09:05,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2020-09-24 17:09:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 17:09:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-24 17:09:05,492 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 53 [2020-09-24 17:09:05,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:09:05,492 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-24 17:09:05,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 17:09:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-24 17:09:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 17:09:05,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:09:05,501 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:09:05,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:09:05,501 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:09:05,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:09:05,502 INFO L82 PathProgramCache]: Analyzing trace with hash 976010630, now seen corresponding path program 1 times [2020-09-24 17:09:05,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:09:05,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564138183] [2020-09-24 17:09:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:09:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:07,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:07,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 17:09:07,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:07,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1659 [2020-09-24 17:09:07,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 17:09:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 17:09:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 17:09:07,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:07,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:09:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:07,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:07,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:07,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:09:07,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:07,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 17:09:07,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:07,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:09:07,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:07,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:09:07,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:09:07,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 17:09:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:07,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:08,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:08,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 17:09:08,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-09-24 17:09:08,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 17:09:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 17:09:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:08,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:09:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:08,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:08,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:08,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:09:08,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:08,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 17:09:08,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:09:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:09:08,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:08,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 17:09:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:08,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:08,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:08,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 17:09:08,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:08,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 17:09:08,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:09:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:09:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:08,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:09:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:08,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:08,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:08,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:09:08,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:08,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:09:08,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:09:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:09:08,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:08,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 17:09:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:08,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:08,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:08,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 17:09:08,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:08,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 17:09:08,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 17:09:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 17:09:08,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:08,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:09:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:08,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:09,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:09,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:09:09,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:09,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 17:09:09,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:09,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:09:09,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:09,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 17:09:09,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 17:09:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:09,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:09,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:09,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:09:09,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:09,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 17:09:09,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:09,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:09:09,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 17:09:09,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 17:09:09,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 17:09:09,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564138183] [2020-09-24 17:09:09,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:09:09,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-09-24 17:09:09,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280906392] [2020-09-24 17:09:09,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-24 17:09:09,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:09:09,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-24 17:09:09,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=594, Unknown=0, NotChecked=0, Total=650 [2020-09-24 17:09:09,558 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 26 states. [2020-09-24 17:09:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:09:12,757 INFO L93 Difference]: Finished difference Result 113 states and 115 transitions. [2020-09-24 17:09:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 17:09:12,757 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 83 [2020-09-24 17:09:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:09:12,760 INFO L225 Difference]: With dead ends: 113 [2020-09-24 17:09:12,760 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 17:09:12,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=430, Invalid=2876, Unknown=0, NotChecked=0, Total=3306 [2020-09-24 17:09:12,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 17:09:12,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2020-09-24 17:09:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 17:09:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2020-09-24 17:09:12,789 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 83 [2020-09-24 17:09:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:09:12,792 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2020-09-24 17:09:12,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-24 17:09:12,792 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2020-09-24 17:09:12,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 17:09:12,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:09:12,797 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:09:12,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:09:12,797 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:09:12,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:09:12,798 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-09-24 17:09:12,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:09:12,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714587313] [2020-09-24 17:09:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:09:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:12,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-24 17:09:13,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-24 17:09:13,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:09:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-09-24 17:09:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:09:13,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:09:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:09:13,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:09:13,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 17:09:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 17:09:13,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 17:09:13,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:09:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:09:13,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:09:13,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:13,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:13,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 17:09:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 17:09:13,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:09:13,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:13,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:09:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:09:13,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:09:13,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:13,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 17:09:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 17:09:13,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 17:09:13,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:13,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:09:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:09:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:09:13,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 17:09:13,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:09:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:09:13,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 17:09:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:13,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:09:13,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 17:09:13,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:09:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 17:09:13,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:09:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:09:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:09:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:09:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:09:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 17:09:13,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714587313] [2020-09-24 17:09:13,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:09:13,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:09:13,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724944402] [2020-09-24 17:09:13,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:09:13,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:09:13,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:09:13,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:09:13,437 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 8 states. [2020-09-24 17:09:13,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:09:13,763 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2020-09-24 17:09:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:09:13,764 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-24 17:09:13,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:09:13,766 INFO L225 Difference]: With dead ends: 101 [2020-09-24 17:09:13,767 INFO L226 Difference]: Without dead ends: 92 [2020-09-24 17:09:13,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:09:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-24 17:09:13,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-24 17:09:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-24 17:09:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2020-09-24 17:09:13,778 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 86 [2020-09-24 17:09:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:09:13,779 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2020-09-24 17:09:13,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:09:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2020-09-24 17:09:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-24 17:09:13,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:09:13,781 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:09:13,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:09:13,781 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:09:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:09:13,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1740877654, now seen corresponding path program 1 times [2020-09-24 17:09:13,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:09:13,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132720745] [2020-09-24 17:09:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:09:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:09:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:14,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:16,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:09:28,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking...