/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=NARROWEST --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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:25:39,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:25:39,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:25:39,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:25:39,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:25:39,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:25:39,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:25:39,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:25:39,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:25:39,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:25:39,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:25:39,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:25:39,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:25:39,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:25:39,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:25:39,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:25:39,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:25:39,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:25:39,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:25:39,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:25:39,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:25:39,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:25:39,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:25:39,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:25:39,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:25:39,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:25:39,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:25:39,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:25:39,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:25:39,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:25:39,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:25:39,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:25:39,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:25:39,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:25:39,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:25:39,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:25:39,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:25:39,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:25:39,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:25:39,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:25:39,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:25:39,861 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 [2020-10-13 10:25:39,905 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:25:39,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:25:39,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:25:39,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:25:39,907 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:25:39,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:25:39,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:25:39,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:25:39,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:25:39,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:25:39,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:25:39,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:25:39,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:25:39,910 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:25:39,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:25:39,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:25:39,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:25:39,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:25:39,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:25:39,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:25:39,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:25:39,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:25:39,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:25:39,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:25:39,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:25:39,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:25:39,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:25:39,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:25:39,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:25:39,915 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:25:40,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:25:40,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:25:40,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:25:40,245 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:25:40,246 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:25:40,246 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-13 10:25:40,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a7cd7c68/ce17196a713540a684977b4b3c47e214/FLAG073d9c497 [2020-10-13 10:25:40,860 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:25:40,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-13 10:25:40,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a7cd7c68/ce17196a713540a684977b4b3c47e214/FLAG073d9c497 [2020-10-13 10:25:41,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a7cd7c68/ce17196a713540a684977b4b3c47e214 [2020-10-13 10:25:41,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:25:41,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:25:41,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:25:41,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:25:41,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:25:41,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219594b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:41, skipping insertion in model container [2020-10-13 10:25:41,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:25:41" (1/1) ... [2020-10-13 10:25:41,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:25:41,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:25:41,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:25:41,885 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:25:41,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:25:42,166 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:25:42,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42 WrapperNode [2020-10-13 10:25:42,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:25:42,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:25:42,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:25:42,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:25:42,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (1/1) ... [2020-10-13 10:25:42,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (1/1) ... [2020-10-13 10:25:42,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (1/1) ... [2020-10-13 10:25:42,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (1/1) ... [2020-10-13 10:25:42,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (1/1) ... [2020-10-13 10:25:42,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (1/1) ... [2020-10-13 10:25:42,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (1/1) ... [2020-10-13 10:25:42,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:25:42,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:25:42,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:25:42,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:25:42,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (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 [2020-10-13 10:25:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:25:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:25:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-13 10:25:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-13 10:25:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-13 10:25:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-13 10:25:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-13 10:25:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-13 10:25:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-13 10:25:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-13 10:25:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-13 10:25:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-13 10:25:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-13 10:25:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-13 10:25:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-13 10:25:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-13 10:25:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:25:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:25:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-13 10:25:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-13 10:25:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-13 10:25:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-13 10:25:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-13 10:25:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-13 10:25:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-13 10:25:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-13 10:25:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-13 10:25:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-13 10:25:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-13 10:25:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-13 10:25:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-13 10:25:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-13 10:25:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-13 10:25:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-13 10:25:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-13 10:25:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-13 10:25:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-13 10:25:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-13 10:25:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-13 10:25:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-13 10:25:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-13 10:25:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-13 10:25:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-13 10:25:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-13 10:25:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-13 10:25:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-13 10:25:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-13 10:25:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-13 10:25:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-13 10:25:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-13 10:25:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-13 10:25:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-13 10:25:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-13 10:25:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-13 10:25:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-13 10:25:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-13 10:25:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-13 10:25:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-13 10:25:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-13 10:25:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-13 10:25:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-13 10:25:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-13 10:25:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-13 10:25:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-13 10:25:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-13 10:25:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-13 10:25:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-13 10:25:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-13 10:25:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-13 10:25:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-13 10:25:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 10:25:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 10:25:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-13 10:25:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 10:25:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-13 10:25:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-13 10:25:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-13 10:25:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-13 10:25:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:25:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-13 10:25:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-13 10:25:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 10:25:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-13 10:25:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-13 10:25:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-13 10:25:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-13 10:25:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-13 10:25:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-13 10:25:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-13 10:25:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-13 10:25:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-13 10:25:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-13 10:25:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-13 10:25:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-13 10:25:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-13 10:25:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-13 10:25:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-13 10:25:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-13 10:25:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-13 10:25:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-13 10:25:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-13 10:25:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-13 10:25:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-13 10:25:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-13 10:25:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-13 10:25:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-13 10:25:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-13 10:25:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-13 10:25:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-13 10:25:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-13 10:25:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-13 10:25:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-13 10:25:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-13 10:25:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-13 10:25:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-13 10:25:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-13 10:25:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-13 10:25:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-13 10:25:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-13 10:25:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-13 10:25:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-13 10:25:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-13 10:25:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-13 10:25:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-13 10:25:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-13 10:25:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-13 10:25:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-13 10:25:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-13 10:25:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-13 10:25:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-13 10:25:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-13 10:25:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-13 10:25:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-13 10:25:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-13 10:25:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-13 10:25:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-13 10:25:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-13 10:25:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-13 10:25:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-13 10:25:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-13 10:25:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-13 10:25:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-13 10:25:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-13 10:25:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-13 10:25:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-13 10:25:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-13 10:25:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-13 10:25:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-13 10:25:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-13 10:25:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-13 10:25:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-13 10:25:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-13 10:25:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-13 10:25:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-13 10:25:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-13 10:25:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-13 10:25:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-13 10:25:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-13 10:25:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 10:25:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-13 10:25:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-13 10:25:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-13 10:25:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-13 10:25:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 10:25:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-13 10:25:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-13 10:25:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-13 10:25:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-13 10:25:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-13 10:25:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-13 10:25:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-13 10:25:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-13 10:25:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-13 10:25:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-13 10:25:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-13 10:25:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-13 10:25:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-13 10:25:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-13 10:25:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-13 10:25:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-13 10:25:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-13 10:25:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-13 10:25:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-13 10:25:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-13 10:25:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-13 10:25:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-13 10:25:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-13 10:25:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-13 10:25:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-13 10:25:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-13 10:25:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-13 10:25:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-13 10:25:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-13 10:25:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-13 10:25:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-13 10:25:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-13 10:25:42,474 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-13 10:25:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-13 10:25:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-13 10:25:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-13 10:25:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-13 10:25:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-13 10:25:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-13 10:25:42,475 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-13 10:25:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-13 10:25:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-13 10:25:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-13 10:25:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:25:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-13 10:25:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-13 10:25:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:25:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-13 10:25:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:25:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-13 10:25:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-13 10:25:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-13 10:25:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-13 10:25:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:25:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-13 10:25:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:25:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:25:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:25:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 10:25:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:25:43,258 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:25:43,259 INFO L295 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-13 10:25:43,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:25:43 BoogieIcfgContainer [2020-10-13 10:25:43,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:25:43,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:25:43,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:25:43,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:25:43,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:25:41" (1/3) ... [2020-10-13 10:25:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c4d8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:25:43, skipping insertion in model container [2020-10-13 10:25:43,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:25:42" (2/3) ... [2020-10-13 10:25:43,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c4d8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:25:43, skipping insertion in model container [2020-10-13 10:25:43,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:25:43" (3/3) ... [2020-10-13 10:25:43,273 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2020-10-13 10:25:43,284 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:25:43,293 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:25:43,308 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:25:43,334 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:25:43,334 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:25:43,334 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:25:43,334 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:25:43,334 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:25:43,335 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:25:43,335 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:25:43,335 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:25:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-13 10:25:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 10:25:43,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:43,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:25:43,367 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:43,373 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2020-10-13 10:25:43,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:43,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279376417] [2020-10-13 10:25:43,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:43,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:43,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:25:43,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:25:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-13 10:25:43,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 10:25:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:43,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:25:43,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:43,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:43,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:43,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:25:43,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:43,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:43,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:43,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:43,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:43,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:43,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:25:43,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:25:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:43,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:43,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279376417] [2020-10-13 10:25:43,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:43,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:25:43,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133502092] [2020-10-13 10:25:43,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:25:43,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:43,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:25:43,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:25:43,957 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 4 states. [2020-10-13 10:25:44,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:44,504 INFO L93 Difference]: Finished difference Result 302 states and 489 transitions. [2020-10-13 10:25:44,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:25:44,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-13 10:25:44,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:44,524 INFO L225 Difference]: With dead ends: 302 [2020-10-13 10:25:44,525 INFO L226 Difference]: Without dead ends: 148 [2020-10-13 10:25:44,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:25:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-13 10:25:44,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 130. [2020-10-13 10:25:44,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-13 10:25:44,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2020-10-13 10:25:44,638 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 14 [2020-10-13 10:25:44,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:44,638 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2020-10-13 10:25:44,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:25:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2020-10-13 10:25:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 10:25:44,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:44,641 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] [2020-10-13 10:25:44,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:25:44,642 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:44,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:44,642 INFO L82 PathProgramCache]: Analyzing trace with hash 151916718, now seen corresponding path program 1 times [2020-10-13 10:25:44,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:44,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392049968] [2020-10-13 10:25:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:44,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 10:25:45,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-13 10:25:45,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:45,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:45,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 10:25:45,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:45,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:45,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:25:45,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:45,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:45,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 10:25:45,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 10:25:45,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:45,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:25:45,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:45,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:45,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:25:45,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:45,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:45,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:45,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:45,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:45,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:45,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:45,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:45,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 10:25:45,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:45,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:25:45,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:45,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:25:45,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:45,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392049968] [2020-10-13 10:25:45,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:45,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 10:25:45,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131303973] [2020-10-13 10:25:45,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:25:45,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:45,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:25:45,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:25:45,463 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 8 states. [2020-10-13 10:25:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:46,260 INFO L93 Difference]: Finished difference Result 150 states and 179 transitions. [2020-10-13 10:25:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:25:46,261 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-13 10:25:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:46,263 INFO L225 Difference]: With dead ends: 150 [2020-10-13 10:25:46,264 INFO L226 Difference]: Without dead ends: 147 [2020-10-13 10:25:46,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:25:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-13 10:25:46,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 129. [2020-10-13 10:25:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-13 10:25:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-10-13 10:25:46,284 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 34 [2020-10-13 10:25:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:46,285 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-10-13 10:25:46,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:25:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-10-13 10:25:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 10:25:46,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:46,286 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] [2020-10-13 10:25:46,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:25:46,287 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:46,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:46,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2020-10-13 10:25:46,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:46,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514912716] [2020-10-13 10:25:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:46,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:46,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:46,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 10:25:46,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:46,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-13 10:25:46,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:25:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 10:25:46,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:46,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:46,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:46,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:46,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:46,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:46,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:25:46,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:46,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:46,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:46,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:47,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:47,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:47,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-13 10:25:47,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:25:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 10:25:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:47,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:47,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:47,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:47,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:47,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-13 10:25:47,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:47,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:25:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:25:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:47,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:47,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:47,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:47,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:47,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:47,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 10:25:47,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:47,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:25:47,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:47,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 10:25:47,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:47,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:47,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:47,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:47,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 10:25:47,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:47,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:47,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:25:47,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:47,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:47,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514912716] [2020-10-13 10:25:47,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:47,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 10:25:47,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147674414] [2020-10-13 10:25:47,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 10:25:47,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:47,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 10:25:47,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-13 10:25:47,519 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 16 states. [2020-10-13 10:25:49,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:49,738 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2020-10-13 10:25:49,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 10:25:49,739 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-10-13 10:25:49,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:49,742 INFO L225 Difference]: With dead ends: 244 [2020-10-13 10:25:49,744 INFO L226 Difference]: Without dead ends: 238 [2020-10-13 10:25:49,745 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 [2020-10-13 10:25:49,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-13 10:25:49,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2020-10-13 10:25:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-13 10:25:49,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2020-10-13 10:25:49,800 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 37 [2020-10-13 10:25:49,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:49,801 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2020-10-13 10:25:49,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 10:25:49,801 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2020-10-13 10:25:49,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 10:25:49,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:49,804 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] [2020-10-13 10:25:49,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:25:49,804 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:49,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:49,804 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2020-10-13 10:25:49,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:49,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104318280] [2020-10-13 10:25:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:49,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:50,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:50,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 10:25:50,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:50,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 748 [2020-10-13 10:25:50,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 10:25:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-13 10:25:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:50,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:50,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:50,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:50,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:50,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:25:50,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:50,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:50,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:50,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:50,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:50,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:50,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:51,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:51,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:51,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-13 10:25:51,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:25:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:51,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:25:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:51,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:51,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:51,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:51,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:51,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-13 10:25:51,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:25:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:25:51,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:51,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:51,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 10:25:51,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:25:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:25:51,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:51,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:51,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:51,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:51,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:25:51,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:25:51,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:51,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104318280] [2020-10-13 10:25:51,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:51,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 10:25:51,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073223398] [2020-10-13 10:25:51,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 10:25:51,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:51,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 10:25:51,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-13 10:25:51,741 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand 18 states. [2020-10-13 10:25:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:54,662 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2020-10-13 10:25:54,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 10:25:54,663 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-10-13 10:25:54,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:54,666 INFO L225 Difference]: With dead ends: 329 [2020-10-13 10:25:54,667 INFO L226 Difference]: Without dead ends: 326 [2020-10-13 10:25:54,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 10:25:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-13 10:25:54,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2020-10-13 10:25:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:25:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-10-13 10:25:54,701 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2020-10-13 10:25:54,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:54,702 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-10-13 10:25:54,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 10:25:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-10-13 10:25:54,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 10:25:54,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:54,703 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] [2020-10-13 10:25:54,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:25:54,704 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:54,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2020-10-13 10:25:54,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:54,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408744747] [2020-10-13 10:25:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:54,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:55,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:55,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 10:25:55,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:55,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-13 10:25:55,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 10:25:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 10:25:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:55,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:55,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:55,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:55,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:55,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:25:55,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:55,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:55,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:55,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:55,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:55,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:25:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:55,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:55,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:55,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:25:55,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:55,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-13 10:25:55,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:55,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:25:55,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:25:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:55,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:55,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:55,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:55,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:25:55,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-13 10:25:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:25:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:25:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:56,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:25:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:56,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:25:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 10:25:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:25:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:25:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:25:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:56,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:25:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:56,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:56,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:56,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:56,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:56,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:25:56,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:25:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:25:56,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:25:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:25:56,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408744747] [2020-10-13 10:25:56,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:25:56,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 10:25:56,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985370976] [2020-10-13 10:25:56,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 10:25:56,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:25:56,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 10:25:56,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-13 10:25:56,241 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 18 states. [2020-10-13 10:25:59,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:25:59,088 INFO L93 Difference]: Finished difference Result 323 states and 390 transitions. [2020-10-13 10:25:59,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 10:25:59,089 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 43 [2020-10-13 10:25:59,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:25:59,096 INFO L225 Difference]: With dead ends: 323 [2020-10-13 10:25:59,097 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 10:25:59,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=200, Invalid=1060, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 10:25:59,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 10:25:59,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-13 10:25:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:25:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2020-10-13 10:25:59,151 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2020-10-13 10:25:59,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:25:59,152 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2020-10-13 10:25:59,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 10:25:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2020-10-13 10:25:59,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 10:25:59,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:25:59,160 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] [2020-10-13 10:25:59,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:25:59,161 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:25:59,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:25:59,162 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2020-10-13 10:25:59,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:25:59,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910694382] [2020-10-13 10:25:59,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:25:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:59,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:59,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:59,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 10:25:59,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:59,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-10-13 10:25:59,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:59,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 10:25:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:25:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 10:25:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:25:59,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:25:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:25:59,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:25:59,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:25:59,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:25:59,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:25:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:25:59,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:25:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:25:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:25:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:25:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:00,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:26:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:00,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:00,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:26:00,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-13 10:26:00,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:26:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:26:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:00,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:00,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:00,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:00,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:00,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:00,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-13 10:26:00,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:26:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:00,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:00,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:01,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:01,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:01,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:01,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:01,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:01,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-13 10:26:01,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:01,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:26:01,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:01,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:01,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:01,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:01,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:01,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 10:26:01,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:26:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:26:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:26:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:26:01,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910694382] [2020-10-13 10:26:01,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:26:01,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 10:26:01,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715448466] [2020-10-13 10:26:01,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:26:01,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:26:01,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:26:01,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:26:01,538 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 19 states. [2020-10-13 10:26:04,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:26:04,828 INFO L93 Difference]: Finished difference Result 323 states and 389 transitions. [2020-10-13 10:26:04,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 10:26:04,830 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-10-13 10:26:04,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:26:04,832 INFO L225 Difference]: With dead ends: 323 [2020-10-13 10:26:04,832 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 10:26:04,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 10:26:04,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 10:26:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-13 10:26:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:26:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2020-10-13 10:26:04,863 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2020-10-13 10:26:04,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:26:04,863 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2020-10-13 10:26:04,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:26:04,864 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2020-10-13 10:26:04,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 10:26:04,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:26:04,865 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] [2020-10-13 10:26:04,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:26:04,865 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:26:04,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:26:04,866 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2020-10-13 10:26:04,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:26:04,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084863252] [2020-10-13 10:26:04,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:26:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:04,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:05,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:06,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:06,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 10:26:06,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:26:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1231 [2020-10-13 10:26:06,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 10:26:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:26:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 10:26:06,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:06,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:26:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:06,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:06,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:06,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:26:06,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:26:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:06,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:26:06,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:06,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:26:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:06,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:06,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:06,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:26:06,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-13 10:26:06,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:26:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:26:06,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:06,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:06,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:06,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-13 10:26:06,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:26:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:07,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:07,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:07,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:07,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:07,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 10:26:07,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:07,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:26:07,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:07,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:07,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:07,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:07,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:07,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:07,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:07,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:07,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 10:26:07,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:07,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:26:07,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:07,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:26:07,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:26:07,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084863252] [2020-10-13 10:26:07,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:26:07,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 10:26:07,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735838137] [2020-10-13 10:26:07,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:26:07,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:26:07,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:26:07,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:26:07,361 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 19 states. [2020-10-13 10:26:10,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:26:10,520 INFO L93 Difference]: Finished difference Result 322 states and 387 transitions. [2020-10-13 10:26:10,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 10:26:10,520 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 49 [2020-10-13 10:26:10,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:26:10,523 INFO L225 Difference]: With dead ends: 322 [2020-10-13 10:26:10,523 INFO L226 Difference]: Without dead ends: 319 [2020-10-13 10:26:10,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=191, Invalid=1141, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 10:26:10,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-10-13 10:26:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 290. [2020-10-13 10:26:10,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:26:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2020-10-13 10:26:10,550 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2020-10-13 10:26:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:26:10,551 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2020-10-13 10:26:10,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:26:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2020-10-13 10:26:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 10:26:10,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:26:10,552 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] [2020-10-13 10:26:10,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:26:10,553 INFO L427 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:26:10,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:26:10,553 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2020-10-13 10:26:10,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:26:10,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966865247] [2020-10-13 10:26:10,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:26:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:10,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:11,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:11,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 10:26:11,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-13 10:26:11,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 10:26:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:26:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 10:26:11,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:11,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:26:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:11,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:11,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:11,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:11,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:26:11,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:26:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:26:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:11,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:26:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:11,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:11,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:11,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:26:11,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-13 10:26:11,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:26:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 10:26:11,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:11,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:11,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:11,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:11,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:11,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:11,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 10:26:11,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:26:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:12,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:12,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:12,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:12,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:12,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 10:26:12,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:26:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:12,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:12,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:12,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:12,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:12,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:12,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:12,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:26:12,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:26:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:26:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:26:12,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966865247] [2020-10-13 10:26:12,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:26:12,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 10:26:12,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063260137] [2020-10-13 10:26:12,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:26:12,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:26:12,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:26:12,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:26:12,310 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 19 states. [2020-10-13 10:26:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:26:15,862 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2020-10-13 10:26:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 10:26:15,863 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-10-13 10:26:15,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:26:15,866 INFO L225 Difference]: With dead ends: 325 [2020-10-13 10:26:15,866 INFO L226 Difference]: Without dead ends: 322 [2020-10-13 10:26:15,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 10:26:15,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-13 10:26:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 290. [2020-10-13 10:26:15,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-13 10:26:15,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2020-10-13 10:26:15,893 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 52 [2020-10-13 10:26:15,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:26:15,893 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2020-10-13 10:26:15,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:26:15,893 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2020-10-13 10:26:15,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 10:26:15,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:26:15,894 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] [2020-10-13 10:26:15,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:26:15,895 INFO L427 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:26:15,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:26:15,895 INFO L82 PathProgramCache]: Analyzing trace with hash 354184987, now seen corresponding path program 1 times [2020-10-13 10:26:15,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:26:15,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080349746] [2020-10-13 10:26:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:26:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:15,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:18,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:18,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 10:26:18,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2588 [2020-10-13 10:26:18,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 10:26:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:26:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 10:26:18,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:18,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:26:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:18,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:18,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:18,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:18,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:26:18,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:26:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:26:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:18,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:26:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:18,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:20,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:20,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 10:26:20,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:20,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1513 [2020-10-13 10:26:20,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 10:26:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 10:26:20,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:20,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:20,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:20,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:20,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 10:26:20,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:26:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:20,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:20,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:20,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:20,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:20,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:20,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 10:26:20,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:26:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:20,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:26:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:20,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:20,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:20,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:26:20,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:26:20,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:26:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:26:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:26:20,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:20,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 10:26:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:20,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:21,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:21,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:26:21,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:21,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-13 10:26:21,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:26:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 10:26:21,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:26:25,279 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 226 DAG size of output: 86 [2020-10-13 10:26:36,861 WARN L193 SmtUtils]: Spent 9.66 s on a formula simplification. DAG size of input: 526 DAG size of output: 119 [2020-10-13 10:26:41,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 10:26:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:26:41,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:26:42,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:26:42,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:26:42,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:26:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-13 10:26:42,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:26:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:26:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:26:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:26:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0