/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 SequenceOfStatements --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:39:40,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:39:40,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:39:40,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:39:40,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:39:40,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:39:40,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:39:40,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:39:40,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:39:40,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:39:40,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:39:40,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:39:40,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:39:40,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:39:40,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:39:40,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:39:40,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:39:40,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:39:40,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:39:40,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:39:40,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:39:40,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:39:40,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:39:40,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:39:40,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:39:40,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:39:40,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:39:40,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:39:40,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:39:40,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:39:40,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:39:40,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:39:40,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:39:40,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:39:40,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:39:40,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:39:40,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:39:40,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:39:40,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:39:40,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:39:40,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:39:40,576 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 [2020-10-12 15:39:40,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:39:40,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:39:40,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:39:40,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:39:40,634 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:39:40,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:39:40,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:39:40,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:39:40,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:39:40,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:39:40,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:39:40,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:39:40,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:39:40,637 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:39:40,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:39:40,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:39:40,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:39:40,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:39:40,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:39:40,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:39:40,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:39:40,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:39:40,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:39:40,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:39:40,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:39:40,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:39:40,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:39:40,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:39:40,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:39:40,640 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 -> SequenceOfStatements 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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:39:40,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:39:40,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:39:40,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:39:40,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:39:40,980 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:39:40,981 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-12 15:39:41,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870891c07/d14e82886e5a4bcfb3ce0c24f3f344ac/FLAG0544ce76f [2020-10-12 15:39:41,635 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:39:41,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-12 15:39:41,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870891c07/d14e82886e5a4bcfb3ce0c24f3f344ac/FLAG0544ce76f [2020-10-12 15:39:41,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870891c07/d14e82886e5a4bcfb3ce0c24f3f344ac [2020-10-12 15:39:41,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:39:41,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:39:41,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:39:41,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:39:41,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:39:41,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:39:41" (1/1) ... [2020-10-12 15:39:41,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281ec5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:41, skipping insertion in model container [2020-10-12 15:39:41,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:39:41" (1/1) ... [2020-10-12 15:39:41,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:39:41,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:39:42,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:39:42,597 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:39:42,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:39:42,793 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:39:42,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42 WrapperNode [2020-10-12 15:39:42,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:39:42,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:39:42,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:39:42,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:39:42,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (1/1) ... [2020-10-12 15:39:42,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (1/1) ... [2020-10-12 15:39:42,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (1/1) ... [2020-10-12 15:39:42,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (1/1) ... [2020-10-12 15:39:42,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (1/1) ... [2020-10-12 15:39:42,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (1/1) ... [2020-10-12 15:39:42,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (1/1) ... [2020-10-12 15:39:42,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:39:42,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:39:42,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:39:42,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:39:42,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (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 [2020-10-12 15:39:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:39:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:39:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-12 15:39:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-12 15:39:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-12 15:39:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-12 15:39:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-12 15:39:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-12 15:39:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-12 15:39:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-12 15:39:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-12 15:39:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-12 15:39:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-12 15:39:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-12 15:39:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-12 15:39:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-12 15:39:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:39:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:39:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-12 15:39:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-12 15:39:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:39:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:39:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:39:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:39:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:39:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:39:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:39:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:39:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:39:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:39:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:39:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:39:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:39:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:39:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:39:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:39:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:39:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:39:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:39:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:39:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:39:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:39:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:39:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:39:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:39:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:39:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:39:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:39:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:39:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:39:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:39:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:39:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:39:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:39:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:39:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:39:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:39:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:39:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:39:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:39:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:39:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:39:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:39:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:39:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:39:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:39:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:39:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:39:42,970 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:39:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:39:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:39:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:39:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:39:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:39:42,971 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:39:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:39:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:39:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:39:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:39:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:39:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:39:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:39:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:39:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:39:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:39:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:39:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:39:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:39:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:39:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:39:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:39:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:39:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:39:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:39:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:39:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:39:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:39:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:39:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:39:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:39:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:39:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:39:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:39:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:39:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:39:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:39:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:39:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:39:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:39:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:39:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:39:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:39:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:39:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:39:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:39:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:39:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:39:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:39:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:39:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:39:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-12 15:39:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-12 15:39:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-12 15:39:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-12 15:39:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-12 15:39:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-12 15:39:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-12 15:39:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-12 15:39:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-12 15:39:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-12 15:39:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-12 15:39:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-12 15:39:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-12 15:39:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-12 15:39:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-12 15:39:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-12 15:39:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-12 15:39:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-12 15:39:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-12 15:39:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-12 15:39:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-12 15:39:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-12 15:39:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-12 15:39:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-12 15:39:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-12 15:39:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-12 15:39:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-12 15:39:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-12 15:39:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-12 15:39:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-12 15:39:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-12 15:39:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-12 15:39:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-12 15:39:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-12 15:39:42,986 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-12 15:39:42,986 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-12 15:39:42,986 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-12 15:39:42,986 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-12 15:39:42,986 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 15:39:42,986 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-12 15:39:42,987 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-12 15:39:42,987 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-12 15:39:42,987 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-12 15:39:42,987 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-12 15:39:42,987 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-12 15:39:42,987 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-12 15:39:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-12 15:39:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-12 15:39:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-12 15:39:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-12 15:39:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-12 15:39:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-12 15:39:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-12 15:39:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-12 15:39:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-12 15:39:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-12 15:39:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-12 15:39:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-12 15:39:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-12 15:39:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-12 15:39:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-12 15:39:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-12 15:39:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-12 15:39:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-12 15:39:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-12 15:39:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-12 15:39:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-12 15:39:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-12 15:39:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-12 15:39:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-12 15:39:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-12 15:39:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-12 15:39:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-12 15:39:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-12 15:39:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-12 15:39:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-12 15:39:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-12 15:39:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-12 15:39:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-12 15:39:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-12 15:39:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-12 15:39:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-12 15:39:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-12 15:39:42,993 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-12 15:39:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-12 15:39:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-12 15:39:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-12 15:39:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-12 15:39:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-12 15:39:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-12 15:39:42,994 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-12 15:39:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-12 15:39:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-12 15:39:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-12 15:39:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-12 15:39:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-12 15:39:42,995 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-12 15:39:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:39:42,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:39:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-12 15:39:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-12 15:39:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:39:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-12 15:39:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:39:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-12 15:39:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-12 15:39:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:39:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:39:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:39:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 15:39:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:39:43,797 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:39:43,797 INFO L295 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-12 15:39:43,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:39:43 BoogieIcfgContainer [2020-10-12 15:39:43,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:39:43,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:39:43,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:39:43,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:39:43,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:39:41" (1/3) ... [2020-10-12 15:39:43,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f32751d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:39:43, skipping insertion in model container [2020-10-12 15:39:43,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:42" (2/3) ... [2020-10-12 15:39:43,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f32751d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:39:43, skipping insertion in model container [2020-10-12 15:39:43,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:39:43" (3/3) ... [2020-10-12 15:39:43,822 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2020-10-12 15:39:43,832 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:39:43,839 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:39:43,850 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:39:43,870 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:39:43,870 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:39:43,870 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:39:43,870 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:39:43,871 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:39:43,871 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:39:43,871 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:39:43,871 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:39:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-12 15:39:43,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 15:39:43,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:39:43,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:39:43,899 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:39:43,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:39:43,905 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2020-10-12 15:39:43,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:39:43,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323164838] [2020-10-12 15:39:43,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:39:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:44,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:44,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:44,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:44,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:39:44,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:39:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-12 15:39:44,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:39:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:39:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 15:39:44,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 15:39:44,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:39:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:44,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:44,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:44,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:39:44,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:39:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:44,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:39:44,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:44,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:39:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:44,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:44,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:44,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:44,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:44,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:39:44,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:39:44,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:44,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:39:44,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:44,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:39:44,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:39:44,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323164838] [2020-10-12 15:39:44,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:39:44,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:39:44,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150784597] [2020-10-12 15:39:44,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:39:44,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:39:44,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:39:44,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:39:44,701 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 7 states. [2020-10-12 15:39:45,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:39:45,541 INFO L93 Difference]: Finished difference Result 301 states and 487 transitions. [2020-10-12 15:39:45,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 15:39:45,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-12 15:39:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:39:45,557 INFO L225 Difference]: With dead ends: 301 [2020-10-12 15:39:45,557 INFO L226 Difference]: Without dead ends: 147 [2020-10-12 15:39:45,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:39:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-12 15:39:45,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 129. [2020-10-12 15:39:45,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-12 15:39:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-10-12 15:39:45,655 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 14 [2020-10-12 15:39:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:39:45,655 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-10-12 15:39:45,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:39:45,656 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-10-12 15:39:45,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-12 15:39:45,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:39:45,662 INFO L422 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] [2020-10-12 15:39:45,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:39:45,663 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:39:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:39:45,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2020-10-12 15:39:45,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:39:45,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087167405] [2020-10-12 15:39:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:39:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:45,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:46,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:46,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 15:39:46,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 698 [2020-10-12 15:39:46,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 15:39:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:39:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 15:39:46,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:46,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:39:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:46,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:46,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:46,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:46,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:39:46,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:39:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:39:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:39:46,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:39:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:46,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:47,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:47,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:39:47,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-12 15:39:47,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:39:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 15:39:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:39:47,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:39:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:47,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:47,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:39:47,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:47,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-12 15:39:47,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:39:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:47,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:39:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 15:39:47,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:39:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:47,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:47,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:47,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:39:47,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:47,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 15:39:47,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:39:47,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:47,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:39:47,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:39:47,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:39:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:47,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:47,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:47,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:47,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:47,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 15:39:47,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:39:47,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:47,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:39:47,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:39:47,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087167405] [2020-10-12 15:39:47,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:39:47,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 15:39:47,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669086757] [2020-10-12 15:39:47,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 15:39:47,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:39:47,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 15:39:47,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-12 15:39:47,821 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 16 states. [2020-10-12 15:39:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:39:50,057 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2020-10-12 15:39:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 15:39:50,057 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-10-12 15:39:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:39:50,061 INFO L225 Difference]: With dead ends: 244 [2020-10-12 15:39:50,061 INFO L226 Difference]: Without dead ends: 238 [2020-10-12 15:39:50,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 15:39:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-12 15:39:50,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2020-10-12 15:39:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-12 15:39:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2020-10-12 15:39:50,098 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 37 [2020-10-12 15:39:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:39:50,098 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2020-10-12 15:39:50,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 15:39:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2020-10-12 15:39:50,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 15:39:50,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:39:50,100 INFO L422 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] [2020-10-12 15:39:50,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:39:50,100 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:39:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:39:50,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2020-10-12 15:39:50,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:39:50,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811057856] [2020-10-12 15:39:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:39:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:50,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:50,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:50,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 15:39:50,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:50,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-12 15:39:50,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:50,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 15:39:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:39:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 15:39:50,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:39:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:50,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:50,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:50,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:50,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:50,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:39:50,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:39:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:39:50,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:50,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:39:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:51,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:51,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:51,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:39:51,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:51,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-12 15:39:51,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:51,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:39:51,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:39:51,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:39:51,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:51,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:39:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:51,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:51,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:39:51,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:51,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-12 15:39:51,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:39:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:39:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:39:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:39:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:51,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:51,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:51,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:39:51,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:51,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 15:39:51,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:39:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:39:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:39:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:39:52,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:39:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:52,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:52,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:52,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:52,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:52,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:39:52,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:39:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:52,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:39:52,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:39:52,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811057856] [2020-10-12 15:39:52,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:39:52,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 15:39:52,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129393176] [2020-10-12 15:39:52,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 15:39:52,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:39:52,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 15:39:52,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-12 15:39:52,167 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand 18 states. [2020-10-12 15:39:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:39:55,378 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2020-10-12 15:39:55,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 15:39:55,379 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-10-12 15:39:55,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:39:55,383 INFO L225 Difference]: With dead ends: 329 [2020-10-12 15:39:55,383 INFO L226 Difference]: Without dead ends: 326 [2020-10-12 15:39:55,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 15:39:55,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-12 15:39:55,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2020-10-12 15:39:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:39:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-10-12 15:39:55,433 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2020-10-12 15:39:55,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:39:55,434 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-10-12 15:39:55,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 15:39:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-10-12 15:39:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 15:39:55,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:39:55,438 INFO L422 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] [2020-10-12 15:39:55,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:39:55,439 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:39:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:39:55,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2020-10-12 15:39:55,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:39:55,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716286108] [2020-10-12 15:39:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:39:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:55,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:56,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:56,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 15:39:56,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:56,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-10-12 15:39:56,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 15:39:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:39:56,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 15:39:56,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:56,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:39:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:56,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:56,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:56,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:56,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:56,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:39:56,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:56,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:39:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:39:56,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:56,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:39:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:56,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:56,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:56,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:39:56,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-12 15:39:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:39:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:39:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:39:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:39:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:56,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:56,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:56,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:39:56,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:56,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-12 15:39:56,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:56,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:39:56,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:39:56,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:39:56,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:39:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:57,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:57,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:57,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:39:57,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 15:39:57,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:57,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:39:57,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:39:57,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:39:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:57,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:39:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:57,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:57,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:57,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:57,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:57,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:39:57,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:39:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:39:57,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:39:57,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716286108] [2020-10-12 15:39:57,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:39:57,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 15:39:57,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696707325] [2020-10-12 15:39:57,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 15:39:57,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:39:57,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 15:39:57,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-12 15:39:57,251 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 18 states. [2020-10-12 15:40:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:00,177 INFO L93 Difference]: Finished difference Result 323 states and 390 transitions. [2020-10-12 15:40:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 15:40:00,178 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 43 [2020-10-12 15:40:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:00,181 INFO L225 Difference]: With dead ends: 323 [2020-10-12 15:40:00,181 INFO L226 Difference]: Without dead ends: 320 [2020-10-12 15:40:00,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=200, Invalid=1060, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 15:40:00,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-12 15:40:00,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-12 15:40:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2020-10-12 15:40:00,211 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2020-10-12 15:40:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:00,212 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2020-10-12 15:40:00,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 15:40:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2020-10-12 15:40:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 15:40:00,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:00,213 INFO L422 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] [2020-10-12 15:40:00,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:40:00,214 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:00,214 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2020-10-12 15:40:00,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:00,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520245040] [2020-10-12 15:40:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:00,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:00,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:00,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 15:40:00,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:00,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-10-12 15:40:00,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:00,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 15:40:00,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:00,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 15:40:00,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:00,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:00,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:00,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:00,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:00,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:00,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:40:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:00,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:00,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:01,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:01,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:01,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-12 15:40:01,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:01,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:01,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:01,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:01,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:01,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:01,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:01,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:01,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-12 15:40:01,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:01,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:01,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:01,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:01,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:01,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:01,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:01,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:01,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 15:40:01,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:01,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:01,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:01,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:01,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:02,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:02,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:02,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:02,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:40:02,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:02,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:02,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520245040] [2020-10-12 15:40:02,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:02,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 15:40:02,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170689446] [2020-10-12 15:40:02,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 15:40:02,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:02,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 15:40:02,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-12 15:40:02,172 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 19 states. [2020-10-12 15:40:03,348 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-10-12 15:40:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:06,223 INFO L93 Difference]: Finished difference Result 323 states and 389 transitions. [2020-10-12 15:40:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 15:40:06,226 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-10-12 15:40:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:06,229 INFO L225 Difference]: With dead ends: 323 [2020-10-12 15:40:06,229 INFO L226 Difference]: Without dead ends: 320 [2020-10-12 15:40:06,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 15:40:06,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-12 15:40:06,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-12 15:40:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2020-10-12 15:40:06,261 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2020-10-12 15:40:06,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:06,261 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2020-10-12 15:40:06,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 15:40:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2020-10-12 15:40:06,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 15:40:06,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:06,263 INFO L422 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] [2020-10-12 15:40:06,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:40:06,263 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:06,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:06,264 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2020-10-12 15:40:06,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:06,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306760467] [2020-10-12 15:40:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:06,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:06,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:07,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 15:40:07,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:40:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1506 [2020-10-12 15:40:07,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-12 15:40:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:07,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 15:40:07,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:08,137 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2020-10-12 15:40:08,287 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-10-12 15:40:08,439 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 33 [2020-10-12 15:40:08,596 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-10-12 15:40:08,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:08,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:08,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:08,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:08,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:40:08,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:08,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:08,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:09,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:09,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:09,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:09,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:09,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-12 15:40:09,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 15:40:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:09,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:09,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:09,830 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2020-10-12 15:40:09,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:09,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:10,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:10,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:10,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:10,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-12 15:40:10,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 15:40:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:13,129 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 400 DAG size of output: 88 [2020-10-12 15:40:13,773 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 51 [2020-10-12 15:40:13,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:14,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:14,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:14,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-12 15:40:14,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:14,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:15,756 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 214 DAG size of output: 102 [2020-10-12 15:40:15,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:15,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:15,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:15,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 15:40:15,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:15,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:16,353 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 58 [2020-10-12 15:40:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:16,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306760467] [2020-10-12 15:40:16,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:16,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 15:40:16,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648769299] [2020-10-12 15:40:16,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 15:40:16,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:16,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 15:40:16,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-10-12 15:40:16,415 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 23 states. [2020-10-12 15:40:16,716 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-12 15:40:16,952 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-12 15:40:17,104 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-12 15:40:17,634 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-12 15:40:17,925 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 15:40:18,169 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 15:40:18,604 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 15:40:18,878 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-10-12 15:40:19,178 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-12 15:40:19,455 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 15:40:19,964 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 120 [2020-10-12 15:40:20,151 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 15:40:20,351 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 15:40:20,594 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 15:40:20,762 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 15:40:20,938 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 15:40:23,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:23,559 INFO L93 Difference]: Finished difference Result 317 states and 380 transitions. [2020-10-12 15:40:23,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 15:40:23,561 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 49 [2020-10-12 15:40:23,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:23,563 INFO L225 Difference]: With dead ends: 317 [2020-10-12 15:40:23,564 INFO L226 Difference]: Without dead ends: 314 [2020-10-12 15:40:23,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=282, Invalid=1610, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 15:40:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-12 15:40:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 290. [2020-10-12 15:40:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2020-10-12 15:40:23,596 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2020-10-12 15:40:23,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:23,597 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2020-10-12 15:40:23,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 15:40:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2020-10-12 15:40:23,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 15:40:23,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:23,599 INFO L422 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] [2020-10-12 15:40:23,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:40:23,599 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:23,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:23,600 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2020-10-12 15:40:23,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:23,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278632845] [2020-10-12 15:40:23,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:23,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:24,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:24,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 15:40:24,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-12 15:40:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 15:40:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:40:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:24,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:24,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:24,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:24,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:24,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:24,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:40:24,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:24,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:24,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:24,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:24,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:24,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:24,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:24,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-12 15:40:24,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:24,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:24,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:24,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:24,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:24,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:24,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:24,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:24,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:24,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:24,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 15:40:24,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:24,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:24,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:25,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 15:40:25,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:25,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:40:25,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:25,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278632845] [2020-10-12 15:40:25,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:25,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 15:40:25,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917549804] [2020-10-12 15:40:25,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 15:40:25,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:25,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 15:40:25,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-12 15:40:25,457 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 19 states. [2020-10-12 15:40:29,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:29,291 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2020-10-12 15:40:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 15:40:29,295 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-10-12 15:40:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:29,297 INFO L225 Difference]: With dead ends: 325 [2020-10-12 15:40:29,298 INFO L226 Difference]: Without dead ends: 322 [2020-10-12 15:40:29,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 15:40:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-12 15:40:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 290. [2020-10-12 15:40:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2020-10-12 15:40:29,326 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 52 [2020-10-12 15:40:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:29,326 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2020-10-12 15:40:29,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 15:40:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2020-10-12 15:40:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 15:40:29,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:29,328 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:29,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:40:29,329 INFO L427 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:29,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:29,329 INFO L82 PathProgramCache]: Analyzing trace with hash 354184987, now seen corresponding path program 1 times [2020-10-12 15:40:29,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:29,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437562443] [2020-10-12 15:40:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:29,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:31,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:31,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 15:40:31,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:31,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2595 [2020-10-12 15:40:31,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 15:40:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:40:31,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:32,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:40:32,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:32,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:33,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:33,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 15:40:33,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:33,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1504 [2020-10-12 15:40:33,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:33,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-12 15:40:33,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:33,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:40:33,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:33,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:33,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:34,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:34,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:34,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:34,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-12 15:40:34,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:34,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:34,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:34,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:34,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:34,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:40:34,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:34,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:34,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:34,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:34,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:34,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:40:34,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:34,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:34,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:40:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:34,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:34,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:34,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:34,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:34,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-12 15:40:34,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:34,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:38,645 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 229 DAG size of output: 89 [2020-10-12 15:40:50,928 WARN L193 SmtUtils]: Spent 9.36 s on a formula simplification. DAG size of input: 526 DAG size of output: 119 [2020-10-12 15:40:56,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:56,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:56,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:56,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:56,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:56,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-12 15:40:56,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 15:40:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:56,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:41:27,279 WARN L193 SmtUtils]: Spent 21.90 s on a formula simplification. DAG size of input: 803 DAG size of output: 132 [2020-10-12 15:41:33,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:34,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:35,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:35,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:41:35,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:35,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1328 [2020-10-12 15:41:35,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:41:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:41:35,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0