/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:19:15,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:19:15,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:19:15,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:19:15,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:19:15,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:19:15,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:19:15,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:19:15,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:19:15,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:19:15,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:19:15,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:19:15,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:19:15,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:19:15,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:19:15,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:19:15,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:19:15,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:19:15,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:19:15,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:19:15,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:19:15,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:19:15,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:19:15,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:19:15,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:19:15,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:19:15,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:19:15,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:19:15,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:19:15,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:19:15,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:19:15,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:19:15,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:19:15,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:19:15,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:19:15,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:19:15,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:19:15,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:19:15,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:19:15,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:19:15,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:19:15,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:19:15,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:19:15,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:19:15,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:19:15,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:19:15,522 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:19:15,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:19:15,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:19:15,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:19:15,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:19:15,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:19:15,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:19:15,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:19:15,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:19:15,525 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:19:15,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:19:15,525 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:19:15,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:19:15,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:19:15,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:19:15,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:19:15,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:19:15,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:19:15,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:19:15,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:19:15,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:19:15,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:19:15,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:19:15,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:19:15,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:19:15,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:19:15,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:19:15,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:19:15,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:19:16,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:19:16,001 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:19:16,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 12:19:16,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/228fbf1c4/e9a7dbc8a6344567b58b8480ad32fc0f/FLAGb9bb025cf [2020-09-25 12:19:16,725 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:19:16,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 12:19:16,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/228fbf1c4/e9a7dbc8a6344567b58b8480ad32fc0f/FLAGb9bb025cf [2020-09-25 12:19:16,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/228fbf1c4/e9a7dbc8a6344567b58b8480ad32fc0f [2020-09-25 12:19:16,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:19:16,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:19:16,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:19:16,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:19:16,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:19:16,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:19:16" (1/1) ... [2020-09-25 12:19:16,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1957e223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:16, skipping insertion in model container [2020-09-25 12:19:16,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:19:16" (1/1) ... [2020-09-25 12:19:16,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:19:17,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:19:17,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:19:17,518 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:19:17,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:19:17,635 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:19:17,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17 WrapperNode [2020-09-25 12:19:17,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:19:17,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:19:17,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:19:17,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:19:17,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... [2020-09-25 12:19:17,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:19:17,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:19:17,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:19:17,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:19:17,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:19:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:19:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:19:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 12:19:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 12:19:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 12:19:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 12:19:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 12:19:17,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:19:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:19:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 12:19:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 12:19:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 12:19:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 12:19:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 12:19:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 12:19:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 12:19:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 12:19:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 12:19:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 12:19:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 12:19:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 12:19:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 12:19:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 12:19:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 12:19:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 12:19:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 12:19:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 12:19:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 12:19:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 12:19:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 12:19:17,848 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 12:19:17,848 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 12:19:17,848 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 12:19:17,848 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 12:19:17,848 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 12:19:17,848 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 12:19:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 12:19:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 12:19:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 12:19:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 12:19:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 12:19:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 12:19:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 12:19:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 12:19:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 12:19:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 12:19:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 12:19:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 12:19:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:19:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 12:19:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 12:19:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 12:19:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 12:19:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 12:19:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 12:19:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 12:19:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 12:19:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 12:19:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 12:19:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 12:19:17,854 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 12:19:17,854 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 12:19:17,854 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 12:19:17,855 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 12:19:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 12:19:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 12:19:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 12:19:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 12:19:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 12:19:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 12:19:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 12:19:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 12:19:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 12:19:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 12:19:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 12:19:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 12:19:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 12:19:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 12:19:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 12:19:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 12:19:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 12:19:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 12:19:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 12:19:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 12:19:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 12:19:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 12:19:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 12:19:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 12:19:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 12:19:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 12:19:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 12:19:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 12:19:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 12:19:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 12:19:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 12:19:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 12:19:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 12:19:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 12:19:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 12:19:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 12:19:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 12:19:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 12:19:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 12:19:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 12:19:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 12:19:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 12:19:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 12:19:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 12:19:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 12:19:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 12:19:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 12:19:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:19:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 12:19:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 12:19:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:19:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 12:19:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 12:19:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 12:19:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 12:19:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 12:19:17,872 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 12:19:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 12:19:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 12:19:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 12:19:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 12:19:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 12:19:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 12:19:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 12:19:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 12:19:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:19:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 12:19:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 12:19:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 12:19:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 12:19:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:19:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:19:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:19:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 12:19:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:19:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:19:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:19:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:19:18,439 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:19:18,440 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:19:18,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:19:18 BoogieIcfgContainer [2020-09-25 12:19:18,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:19:18,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:19:18,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:19:18,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:19:18,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:19:16" (1/3) ... [2020-09-25 12:19:18,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a83f369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:19:18, skipping insertion in model container [2020-09-25 12:19:18,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:19:17" (2/3) ... [2020-09-25 12:19:18,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a83f369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:19:18, skipping insertion in model container [2020-09-25 12:19:18,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:19:18" (3/3) ... [2020-09-25 12:19:18,454 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-25 12:19:18,466 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:19:18,476 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:19:18,497 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:19:18,529 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:19:18,529 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:19:18,529 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:19:18,529 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:19:18,529 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:19:18,529 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:19:18,530 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:19:18,530 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:19:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 12:19:18,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 12:19:18,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:18,559 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] [2020-09-25 12:19:18,560 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:18,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:18,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-25 12:19:18,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:18,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866474784] [2020-09-25 12:19:18,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:19,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:19,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:19:19,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 12:19:19,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:19,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:19:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:19:19,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:19:19,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:19,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:19,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:19,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:19,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:19:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:19,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:19,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:19:19,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866474784] [2020-09-25 12:19:19,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:19,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:19:19,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051419654] [2020-09-25 12:19:19,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:19:19,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:19,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:19:19,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:19:19,363 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-25 12:19:19,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:19,813 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-25 12:19:19,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:19:19,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 12:19:19,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:19,831 INFO L225 Difference]: With dead ends: 126 [2020-09-25 12:19:19,831 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 12:19:19,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:19:19,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 12:19:19,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-25 12:19:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 12:19:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-25 12:19:19,900 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-25 12:19:19,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:19,901 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-25 12:19:19,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:19:19,901 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-25 12:19:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 12:19:19,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:19,905 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:19,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:19:19,906 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:19,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:19,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-25 12:19:19,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:19,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785310019] [2020-09-25 12:19:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:20,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:20,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:20,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 12:19:24,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:19:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4381 [2020-09-25 12:19:24,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:19:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:24,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:19:24,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:19:24,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:24,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:19:24,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:24,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:24,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:24,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:19:24,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:24,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:24,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:24,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:19:24,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:24,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:24,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 12:19:24,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:24,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:24,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:24,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:24,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:24,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:24,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:19:24,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:24,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 12:19:24,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785310019] [2020-09-25 12:19:24,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:24,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:19:24,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183912295] [2020-09-25 12:19:24,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:19:24,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:24,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:19:24,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:19:24,837 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 8 states. [2020-09-25 12:19:25,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:25,625 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2020-09-25 12:19:25,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:19:25,626 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 12:19:25,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:25,632 INFO L225 Difference]: With dead ends: 101 [2020-09-25 12:19:25,632 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 12:19:25,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:19:25,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 12:19:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-09-25 12:19:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 12:19:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-25 12:19:25,681 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 61 [2020-09-25 12:19:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:25,684 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-25 12:19:25,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:19:25,685 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-25 12:19:25,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 12:19:25,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:25,692 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:25,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:19:25,695 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:25,695 INFO L82 PathProgramCache]: Analyzing trace with hash -497938342, now seen corresponding path program 1 times [2020-09-25 12:19:25,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:25,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482662755] [2020-09-25 12:19:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:25,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:25,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:26,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:27,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:19:30,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:19:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 12:19:30,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:19:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:19:30,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:30,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:30,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:30,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:30,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:19:30,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:30,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:30,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:30,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:31,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:31,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:31,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 12:19:31,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:31,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:31,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:31,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:31,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:31,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:31,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:31,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:31,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:31,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:31,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:31,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:31,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:31,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:31,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:31,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 12:19:31,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:31,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:31,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:31,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:31,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:31,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:31,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:31,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:31,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:31,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:31,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:31,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:31,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:31,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:31,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:31,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:19:31,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:31,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:31,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:31,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:31,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:19:31,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 12:19:31,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482662755] [2020-09-25 12:19:31,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:31,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:19:31,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350446101] [2020-09-25 12:19:31,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:19:31,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:31,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:19:31,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:19:31,190 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 9 states. [2020-09-25 12:19:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:31,848 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2020-09-25 12:19:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:19:31,850 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 12:19:31,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:31,852 INFO L225 Difference]: With dead ends: 96 [2020-09-25 12:19:31,852 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 12:19:31,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:19:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 12:19:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2020-09-25 12:19:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 12:19:31,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-09-25 12:19:31,876 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 70 [2020-09-25 12:19:31,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:31,879 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-09-25 12:19:31,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:19:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-09-25 12:19:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 12:19:31,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:31,881 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:31,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:19:31,881 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:31,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1150537932, now seen corresponding path program 1 times [2020-09-25 12:19:31,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:31,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838831628] [2020-09-25 12:19:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:31,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:32,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:33,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 12:19:35,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:19:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3981 [2020-09-25 12:19:35,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:19:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:19:35,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:35,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:36,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:36,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:36,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:36,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:19:36,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:36,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:36,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:36,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:36,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:36,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:36,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 12:19:36,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:36,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:36,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:36,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:36,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:36,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:36,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:19:36,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:36,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:36,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:36,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:36,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:36,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:36,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:36,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 12:19:36,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:36,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:36,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:36,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:36,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:36,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:36,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:36,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 12:19:36,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:36,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:36,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:36,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:36,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:36,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:36,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:36,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:36,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:36,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 12:19:36,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:36,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:36,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:19:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:19:36,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838831628] [2020-09-25 12:19:36,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:36,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 12:19:36,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940930820] [2020-09-25 12:19:36,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:19:36,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:36,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:19:36,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:19:36,421 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 13 states. [2020-09-25 12:19:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:37,431 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2020-09-25 12:19:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 12:19:37,432 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-09-25 12:19:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:37,434 INFO L225 Difference]: With dead ends: 142 [2020-09-25 12:19:37,434 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 12:19:37,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2020-09-25 12:19:37,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 12:19:37,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2020-09-25 12:19:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 12:19:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-09-25 12:19:37,448 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 71 [2020-09-25 12:19:37,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:37,449 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-09-25 12:19:37,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 12:19:37,452 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-09-25 12:19:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 12:19:37,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:37,456 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:37,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:19:37,457 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:37,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1063153905, now seen corresponding path program 1 times [2020-09-25 12:19:37,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:37,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201401788] [2020-09-25 12:19:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:37,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:37,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:41,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:41,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 12:19:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:19:41,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4119 [2020-09-25 12:19:41,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:41,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:19:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:19:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:41,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:41,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:41,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:41,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:41,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:41,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:19:41,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:41,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:41,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:41,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:41,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:41,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:41,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:41,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 12:19:41,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:41,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:41,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:41,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:41,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:41,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:41,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:41,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:41,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:41,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 12:19:41,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:41,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:41,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:41,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:42,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:42,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:42,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 12:19:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:42,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:42,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:42,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:42,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:42,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:42,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:42,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:42,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:42,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:19:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:42,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:42,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:42,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:42,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:42,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:42,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:19:42,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:42,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:19:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 12:19:42,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201401788] [2020-09-25 12:19:42,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:42,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 12:19:42,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084357076] [2020-09-25 12:19:42,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 12:19:42,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:42,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 12:19:42,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:19:42,249 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 16 states. [2020-09-25 12:19:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:43,638 INFO L93 Difference]: Finished difference Result 149 states and 163 transitions. [2020-09-25 12:19:43,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 12:19:43,639 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 12:19:43,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:43,641 INFO L225 Difference]: With dead ends: 149 [2020-09-25 12:19:43,641 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 12:19:43,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 12:19:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 12:19:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 82. [2020-09-25 12:19:43,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 12:19:43,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 12:19:43,668 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 71 [2020-09-25 12:19:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:43,668 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 12:19:43,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 12:19:43,669 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 12:19:43,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 12:19:43,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:43,670 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:43,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:19:43,671 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:43,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:43,671 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-25 12:19:43,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:43,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693510090] [2020-09-25 12:19:43,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:43,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 12:19:44,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-09-25 12:19:44,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 12:19:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 12:19:44,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:19:44,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:44,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:44,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:44,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:19:44,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:44,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:44,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:44,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 12:19:44,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 12:19:44,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:44,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:44,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 12:19:44,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:44,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:44,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:44,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:44,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:44,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:44,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:44,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 12:19:44,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:44,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:44,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:19:44,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:44,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:19:44,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:45,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:45,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:45,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:45,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:45,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:45,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 12:19:45,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:45,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:19:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:19:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:45,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:45,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:45,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:45,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:45,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 12:19:45,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:45,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:45,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 12:19:45,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693510090] [2020-09-25 12:19:45,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:45,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 12:19:45,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901332132] [2020-09-25 12:19:45,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 12:19:45,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:45,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 12:19:45,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 12:19:45,350 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 23 states. [2020-09-25 12:19:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:46,849 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-09-25 12:19:46,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 12:19:46,850 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 12:19:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:46,852 INFO L225 Difference]: With dead ends: 97 [2020-09-25 12:19:46,852 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 12:19:46,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 12:19:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 12:19:46,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2020-09-25 12:19:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 12:19:46,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-25 12:19:46,864 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 71 [2020-09-25 12:19:46,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:46,864 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-25 12:19:46,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 12:19:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-25 12:19:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:19:46,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:46,866 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:46,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:19:46,866 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:46,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:46,866 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-25 12:19:46,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:46,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076119124] [2020-09-25 12:19:46,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:46,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:47,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:19:49,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:19:49,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2581 [2020-09-25 12:19:49,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 12:19:49,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 12:19:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 12:19:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:49,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:49,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:19:49,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:49,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:49,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:49,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 12:19:49,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:49,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:49,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 12:19:49,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:49,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:19:49,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:49,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:49,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:49,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:49,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:49,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 12:19:49,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:19:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:19:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:49,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:49,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:49,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:49,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:49,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:49,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 12:19:49,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:49,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:19:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:19:49,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:50,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:50,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:50,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:50,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:50,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:19:50,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:50,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:50,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:19:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:50,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 12:19:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:50,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:50,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:50,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:50,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:50,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 12:19:50,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:50,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:19:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:50,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 12:19:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:50,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:50,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:50,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:19:50,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:50,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:19:50,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:50,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:50,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:50,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:19:50,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 12:19:50,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076119124] [2020-09-25 12:19:50,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:50,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 12:19:50,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227892375] [2020-09-25 12:19:50,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 12:19:50,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:50,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 12:19:50,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:19:50,198 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 24 states. [2020-09-25 12:19:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:51,672 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2020-09-25 12:19:51,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 12:19:51,674 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 12:19:51,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:51,676 INFO L225 Difference]: With dead ends: 89 [2020-09-25 12:19:51,676 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 12:19:51,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 12:19:51,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 12:19:51,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-25 12:19:51,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 12:19:51,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 12:19:51,689 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 85 [2020-09-25 12:19:51,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:51,690 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 12:19:51,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 12:19:51,690 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 12:19:51,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:19:51,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:51,692 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:51,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:19:51,693 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:51,693 INFO L82 PathProgramCache]: Analyzing trace with hash 571953633, now seen corresponding path program 2 times [2020-09-25 12:19:51,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:51,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132993571] [2020-09-25 12:19:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:51,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:51,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:19:53,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:19:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1503 [2020-09-25 12:19:53,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:19:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 12:19:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:19:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:53,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:53,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:19:53,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:53,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:53,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:53,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:53,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:53,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:19:53,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:53,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:53,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:53,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:53,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:53,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:53,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:53,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:53,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:19:53,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:53,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:53,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:53,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:53,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:53,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:53,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:53,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:53,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 12:19:53,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:19:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:53,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 12:19:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:53,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:19:53,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:53,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:53,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:19:53,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:53,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 12:19:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:53,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:53,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:53,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:19:53,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:53,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:19:53,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:53,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:53,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:53,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:53,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:19:53,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 12:19:53,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132993571] [2020-09-25 12:19:53,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:53,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:19:53,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210001218] [2020-09-25 12:19:53,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:19:53,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:53,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:19:53,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:19:53,546 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 10 states. [2020-09-25 12:19:54,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:54,231 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2020-09-25 12:19:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:19:54,233 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 12:19:54,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:54,234 INFO L225 Difference]: With dead ends: 89 [2020-09-25 12:19:54,235 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 12:19:54,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:19:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 12:19:54,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-09-25 12:19:54,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 12:19:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-09-25 12:19:54,245 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 85 [2020-09-25 12:19:54,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:54,246 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-09-25 12:19:54,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:19:54,246 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-09-25 12:19:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 12:19:54,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:54,247 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:19:54,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:19:54,248 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:54,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:54,248 INFO L82 PathProgramCache]: Analyzing trace with hash 578402155, now seen corresponding path program 1 times [2020-09-25 12:19:54,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:54,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538731073] [2020-09-25 12:19:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:54,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:54,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:54,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:57,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:58,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:19:59,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:19:59,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:19:59,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:19:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:19:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 12:19:59,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:59,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 12:19:59,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:19:59,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:19:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:59,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:19:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:59,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 12:19:59,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:59,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:59,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:59,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:19:59,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:59,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 12:19:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:19:59,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:19:59,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:19:59,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:19:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:59,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:19:59,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:59,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:19:59,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 12:19:59,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:19:59,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:59,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:19:59,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:59,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 12:19:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:19:59,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:19:59,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:19:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:19:59,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 12:19:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:59,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:59,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:19:59,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:59,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:19:59,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:59,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:19:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:19:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 12:19:59,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538731073] [2020-09-25 12:19:59,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:59,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 12:19:59,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215812124] [2020-09-25 12:19:59,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:19:59,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:59,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:19:59,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:19:59,767 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 12 states. [2020-09-25 12:20:00,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:20:00,727 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2020-09-25 12:20:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 12:20:00,728 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 12:20:00,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:20:00,729 INFO L225 Difference]: With dead ends: 81 [2020-09-25 12:20:00,729 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:20:00,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:20:00,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:20:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:20:00,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:20:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:20:00,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2020-09-25 12:20:00,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:20:00,731 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:20:00,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:20:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:20:00,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:20:00,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:20:00,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:20:01,301 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 21 [2020-09-25 12:20:01,406 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2020-09-25 12:20:02,117 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-09-25 12:20:02,119 INFO L264 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: (or (not (= ~elem~0.base ~elem~0.offset)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= my_malloc_~size 8)) (not (= |my_malloc_#in~size| 8)) (not (= ~elem~0.offset 0))) [2020-09-25 12:20:02,119 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-09-25 12:20:02,119 INFO L268 CegarLoopResult]: For program point L879-2(line 879) no Hoare annotation was computed. [2020-09-25 12:20:02,133 INFO L264 CegarLoopResult]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.base ~elem~0.offset)) (not (= |my_malloc_#in~size| 8)) (not (= ~elem~0.offset 0))) [2020-09-25 12:20:02,134 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-09-25 12:20:02,134 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 12:20:02,134 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 12:20:02,134 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 900) no Hoare annotation was computed. [2020-09-25 12:20:02,136 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= |old(#length)| |#length|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.base |old(~elem~0.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 12:20:02,136 INFO L268 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point L900(line 900) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point L900-1(line 900) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point L900-2(line 900) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point L897(line 897) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-09-25 12:20:02,137 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-09-25 12:20:02,138 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) [2020-09-25 12:20:02,139 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base))) (and (or (and .cse0 (= |old(~elem~0.offset)| ~elem~0.offset)) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) (or (= |old(~elem~0.base)| |list_add_#in~new.base|) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.offset 0) .cse0)))) [2020-09-25 12:20:02,139 INFO L268 CegarLoopResult]: For program point L892(line 892) no Hoare annotation was computed. [2020-09-25 12:20:02,139 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-09-25 12:20:02,139 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-09-25 12:20:02,139 INFO L268 CegarLoopResult]: For program point L891-1(line 891) no Hoare annotation was computed. [2020-09-25 12:20:02,139 INFO L268 CegarLoopResult]: For program point L889(lines 889 893) no Hoare annotation was computed. [2020-09-25 12:20:02,139 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (and (or (not (= |old(~elem~0.base)| 0)) (= |old(~elem~0.base)| |list_add_#in~new.base|) (not (= |old(~elem~0.offset)| 0))) (= |old(~elem~0.offset)| |list_add_#in~new.offset|)) [2020-09-25 12:20:02,139 INFO L268 CegarLoopResult]: For program point L891-3(line 891) no Hoare annotation was computed. [2020-09-25 12:20:02,140 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-09-25 12:20:02,140 INFO L268 CegarLoopResult]: For program point L891-4(lines 889 893) no Hoare annotation was computed. [2020-09-25 12:20:02,140 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-09-25 12:20:02,140 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-25 12:20:02,140 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 12:20:02,140 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 12:20:02,140 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-09-25 12:20:02,141 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:20:02,141 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~elem~0.base 0)) [2020-09-25 12:20:02,141 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 12:20:02,141 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 12:20:02,141 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 12:20:02,141 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-09-25 12:20:02,143 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (not (= main_~dev2~0.offset ~elem~0.offset))) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.base ~elem~0.offset))) [2020-09-25 12:20:02,143 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-09-25 12:20:02,143 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (or (and (let ((.cse0 (not (= main_~dev2~0.offset main_~dev1~0.offset)))) (or (and .cse0 (= main_~dev2~0.base ~elem~0.base)) (and .cse0 (not (= main_~dev2~0.offset ~elem~0.offset))))) (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0)))) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (<= ~elem~0.base 0) (<= 0 ~elem~0.base) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.base ~elem~0.offset))) [2020-09-25 12:20:02,143 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.offset 0) (or (not (= ~elem~0.base main_~dev1~0.base)) (not (= main_~dev1~0.offset ~elem~0.offset))) (= |old(~elem~0.base)| ~elem~0.base))) [2020-09-25 12:20:02,144 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-09-25 12:20:02,144 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse0 (not (= main_~dev1~0.offset ~elem~0.offset)))) (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and .cse0 (= main_~dev2~0.base ~elem~0.base) (or (not (= main_~dev2~0.offset 0)) (not (= main_~dev2~0.base 0))) (= main_~dev2~0.offset ~elem~0.offset)) (not (= |old(~elem~0.offset)| 0)) (and (not (= main_~dev2~0.offset main_~dev1~0.offset)) (or (<= (+ main_~dev2~0.offset 1) 0) (< 0 main_~dev2~0.base) (< 0 main_~dev2~0.offset) (<= (+ main_~dev2~0.base 1) 0)) (= ~elem~0.offset 0) (or (not (= ~elem~0.base main_~dev1~0.base)) .cse0) (= |old(~elem~0.base)| ~elem~0.base)))) [2020-09-25 12:20:02,144 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (let ((.cse0 (= |old(~elem~0.base)| ~elem~0.base)) (.cse1 (= |old(~elem~0.offset)| ~elem~0.offset))) (or (and (= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (not (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) .cse0 .cse1) (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (and (= ~elem~0.base main_~dev1~0.base) (= main_~dev1~0.offset ~elem~0.offset) .cse0 .cse1))) [2020-09-25 12:20:02,144 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-09-25 12:20:02,144 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| |old(~elem~0.base)|)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0))) [2020-09-25 12:20:02,144 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-09-25 12:20:02,145 INFO L268 CegarLoopResult]: For program point L903(line 903) no Hoare annotation was computed. [2020-09-25 12:20:02,145 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-09-25 12:20:02,145 INFO L268 CegarLoopResult]: For program point L905-2(line 905) no Hoare annotation was computed. [2020-09-25 12:20:02,145 INFO L268 CegarLoopResult]: For program point L904-2(line 904) no Hoare annotation was computed. [2020-09-25 12:20:02,145 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 12:20:02,145 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-09-25 12:20:02,145 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-09-25 12:20:02,145 INFO L268 CegarLoopResult]: For program point L875(line 875) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L874(line 874) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L873(line 873) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L872(line 872) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L873-1(lines 873 874) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L872-1(line 872) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L873-2(line 873) no Hoare annotation was computed. [2020-09-25 12:20:02,146 INFO L268 CegarLoopResult]: For program point L873-3(line 873) no Hoare annotation was computed. [2020-09-25 12:20:02,147 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (not (= ~elem~0.base ~elem~0.offset)) (not (= ~elem~0.offset 0))) [2020-09-25 12:20:02,147 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-09-25 12:20:02,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:20:02 BoogieIcfgContainer [2020-09-25 12:20:02,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:20:02,164 INFO L168 Benchmark]: Toolchain (without parser) took 45187.66 ms. Allocated memory was 141.0 MB in the beginning and 532.7 MB in the end (delta: 391.6 MB). Free memory was 102.9 MB in the beginning and 493.6 MB in the end (delta: -390.7 MB). Peak memory consumption was 385.3 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:02,166 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:20:02,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.11 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 169.0 MB in the end (delta: -66.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:02,168 INFO L168 Benchmark]: Boogie Preprocessor took 103.93 ms. Allocated memory is still 204.5 MB. Free memory was 169.0 MB in the beginning and 166.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:02,174 INFO L168 Benchmark]: RCFGBuilder took 702.88 ms. Allocated memory is still 204.5 MB. Free memory was 166.3 MB in the beginning and 118.6 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:02,176 INFO L168 Benchmark]: TraceAbstraction took 43713.01 ms. Allocated memory was 204.5 MB in the beginning and 532.7 MB in the end (delta: 328.2 MB). Free memory was 118.6 MB in the beginning and 493.6 MB in the end (delta: -375.0 MB). Peak memory consumption was 337.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:02,189 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.11 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 169.0 MB in the end (delta: -66.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.93 ms. Allocated memory is still 204.5 MB. Free memory was 169.0 MB in the beginning and 166.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 702.88 ms. Allocated memory is still 204.5 MB. Free memory was 166.3 MB in the beginning and 118.6 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43713.01 ms. Allocated memory was 204.5 MB in the beginning and 532.7 MB in the end (delta: 328.2 MB). Free memory was 118.6 MB in the beginning and 493.6 MB in the end (delta: -375.0 MB). Peak memory consumption was 337.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 42.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 527 SDtfs, 1008 SDslu, 1518 SDs, 0 SdLazy, 4514 SolverSat, 345 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 110 SyntacticMatches, 6 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 43 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 77 PreInvPairs, 87 NumberOfFragments, 471 HoareAnnotationTreeSize, 77 FomulaSimplifications, 267 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 18 FomulaSimplificationsInter, 942 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 32.3s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 188846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 138/185 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...