/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=0.2 --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.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:11:31,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:11:31,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:11:31,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:11:31,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:11:31,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:11:31,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:11:31,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:11:31,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:11:31,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:11:31,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:11:31,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:11:31,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:11:31,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:11:31,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:11:31,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:11:31,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:11:31,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:11:31,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:11:31,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:11:31,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:11:31,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:11:31,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:11:31,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:11:31,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:11:31,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:11:31,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:11:31,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:11:31,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:11:31,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:11:31,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:11:31,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:11:31,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:11:31,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:11:31,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:11:31,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:11:31,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:11:31,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:11:31,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:11:31,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:11:31,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:11:31,956 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 11:11:31,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:11:31,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:11:31,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:11:31,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:11:31,994 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:11:31,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:11:31,995 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:11:31,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:11:31,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:11:31,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:11:31,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:11:31,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:11:31,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:11:31,996 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:11:31,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:11:31,997 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:11:31,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:11:31,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:11:31,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:11:31,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:11:31,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:11:31,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:11:31,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:11:31,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:11:31,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:11:31,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:11:31,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:11:31,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:11:32,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:11:32,000 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 11:11:32,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:11:32,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:11:32,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:11:32,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:11:32,507 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:11:32,508 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 11:11:32,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fba477384/3dceb1eb31cd4b9d831d05d3ab5eb693/FLAG971555503 [2020-09-25 11:11:33,176 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:11:33,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 11:11:33,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fba477384/3dceb1eb31cd4b9d831d05d3ab5eb693/FLAG971555503 [2020-09-25 11:11:33,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fba477384/3dceb1eb31cd4b9d831d05d3ab5eb693 [2020-09-25 11:11:33,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:11:33,468 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:11:33,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:11:33,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:11:33,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:11:33,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:11:33" (1/1) ... [2020-09-25 11:11:33,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742dacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:33, skipping insertion in model container [2020-09-25 11:11:33,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:11:33" (1/1) ... [2020-09-25 11:11:33,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:11:33,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:11:33,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:11:33,953 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:11:34,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:11:34,195 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:11:34,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34 WrapperNode [2020-09-25 11:11:34,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:11:34,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:11:34,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:11:34,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:11:34,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (1/1) ... [2020-09-25 11:11:34,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (1/1) ... [2020-09-25 11:11:34,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (1/1) ... [2020-09-25 11:11:34,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (1/1) ... [2020-09-25 11:11:34,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (1/1) ... [2020-09-25 11:11:34,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (1/1) ... [2020-09-25 11:11:34,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (1/1) ... [2020-09-25 11:11:34,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:11:34,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:11:34,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:11:34,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:11:34,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (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 11:11:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:11:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:11:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 11:11:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 11:11:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 11:11:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 11:11:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 11:11:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:11:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:11:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 11:11:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 11:11:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 11:11:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 11:11:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 11:11:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 11:11:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 11:11:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 11:11:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 11:11:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 11:11:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 11:11:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 11:11:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 11:11:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 11:11:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 11:11:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 11:11:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 11:11:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 11:11:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 11:11:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 11:11:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 11:11:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 11:11:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 11:11:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 11:11:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 11:11:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 11:11:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 11:11:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 11:11:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 11:11:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 11:11:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 11:11:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 11:11:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 11:11:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 11:11:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 11:11:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 11:11:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 11:11:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 11:11:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 11:11:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:11:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 11:11:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 11:11:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 11:11:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 11:11:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 11:11:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 11:11:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 11:11:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 11:11:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 11:11:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 11:11:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 11:11:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 11:11:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 11:11:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 11:11:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 11:11:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 11:11:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 11:11:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 11:11:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 11:11:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 11:11:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 11:11:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 11:11:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 11:11:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 11:11:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 11:11:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 11:11:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 11:11:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 11:11:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 11:11:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 11:11:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 11:11:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 11:11:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 11:11:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 11:11:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 11:11:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 11:11:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 11:11:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 11:11:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 11:11:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 11:11:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 11:11:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 11:11:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 11:11:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 11:11:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 11:11:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 11:11:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 11:11:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 11:11:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 11:11:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 11:11:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 11:11:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 11:11:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 11:11:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 11:11:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 11:11:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 11:11:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 11:11:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 11:11:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 11:11:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 11:11:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 11:11:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 11:11:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:11:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 11:11:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 11:11:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:11:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 11:11:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 11:11:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 11:11:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 11:11:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 11:11:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 11:11:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 11:11:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 11:11:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 11:11:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 11:11:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 11:11:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 11:11:34,373 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 11:11:34,373 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 11:11:34,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:11:34,374 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 11:11:34,374 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 11:11:34,374 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 11:11:34,375 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 11:11:34,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:11:34,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:11:34,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:11:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 11:11:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:11:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:11:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:11:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:11:34,863 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:11:34,864 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 11:11:34,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:11:34 BoogieIcfgContainer [2020-09-25 11:11:34,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:11:34,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:11:34,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:11:34,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:11:34,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:11:33" (1/3) ... [2020-09-25 11:11:34,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c5a376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:11:34, skipping insertion in model container [2020-09-25 11:11:34,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:11:34" (2/3) ... [2020-09-25 11:11:34,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c5a376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:11:34, skipping insertion in model container [2020-09-25 11:11:34,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:11:34" (3/3) ... [2020-09-25 11:11:34,878 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 11:11:34,890 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:11:34,900 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:11:34,923 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:11:34,954 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:11:34,955 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:11:34,955 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:11:34,955 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:11:34,955 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:11:34,955 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:11:34,955 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:11:34,956 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:11:34,979 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 11:11:34,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 11:11:34,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:34,987 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 11:11:34,987 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:34,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:34,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 11:11:35,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:35,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455142566] [2020-09-25 11:11:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:35,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:35,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:35,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 11:11:35,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:35,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 11:11:35,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:35,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:11:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 11:11:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:11:35,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:11:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:35,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:35,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:35,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:11:35,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 11:11:35,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:35,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:35,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:35,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:35,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:35,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:35,737 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 11:11:35,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455142566] [2020-09-25 11:11:35,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:11:35,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 11:11:35,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772750895] [2020-09-25 11:11:35,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:11:35,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:11:35,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:11:35,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:11:35,769 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 11:11:36,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:11:36,222 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 11:11:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 11:11:36,225 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 11:11:36,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:11:36,240 INFO L225 Difference]: With dead ends: 128 [2020-09-25 11:11:36,240 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 11:11:36,246 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 11:11:36,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 11:11:36,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 11:11:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 11:11:36,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 11:11:36,310 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 11:11:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:36,310 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 11:11:36,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:11:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 11:11:36,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 11:11:36,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:36,314 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 11:11:36,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:11:36,315 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:36,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:36,316 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 11:11:36,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:36,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276133463] [2020-09-25 11:11:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:36,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:36,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:37,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:40,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:40,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 11:11:40,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:11:40,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4162 [2020-09-25 11:11:40,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:40,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:11:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:11:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 11:11:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:11:40,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:40,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:40,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:40,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:11:40,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:40,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 11:11:40,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:40,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:40,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:11:40,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:40,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:11:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:40,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:40,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:40,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:40,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:40,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 11:11:40,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:40,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:40,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:40,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:40,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:40,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:40,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:40,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:40,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:40,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:40,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:11:40,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:40,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:40,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:11:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:40,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:40,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:40,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:40,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:40,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 11:11:40,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:40,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:40,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:40,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:40,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:40,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:40,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:40,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:40,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:11:40,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:40,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:40,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:40,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:40,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:40,982 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 11:11:40,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276133463] [2020-09-25 11:11:40,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:11:40,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:11:40,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076614039] [2020-09-25 11:11:40,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:11:40,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:11:40,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:11:40,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:11:40,988 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 8 states. [2020-09-25 11:11:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:11:41,753 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2020-09-25 11:11:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:11:41,754 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 11:11:41,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:11:41,757 INFO L225 Difference]: With dead ends: 104 [2020-09-25 11:11:41,757 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 11:11:41,758 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 11:11:41,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 11:11:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-09-25 11:11:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 11:11:41,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2020-09-25 11:11:41,778 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 61 [2020-09-25 11:11:41,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:41,779 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-09-25 11:11:41,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:11:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2020-09-25 11:11:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 11:11:41,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:41,782 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 11:11:41,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:11:41,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:41,783 INFO L82 PathProgramCache]: Analyzing trace with hash -116378698, now seen corresponding path program 1 times [2020-09-25 11:11:41,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:41,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778629429] [2020-09-25 11:11:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:41,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:41,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:42,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:43,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:46,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:46,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 11:11:46,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:11:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 11:11:46,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:46,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:46,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 11:11:46,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:11:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:11:46,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:46,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:46,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:46,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:11:46,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:46,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 11:11:46,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:46,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:46,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:46,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:11:46,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:46,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:11:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:47,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:47,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:47,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:47,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 11:11:47,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:47,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:47,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:47,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:47,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:47,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:47,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:47,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:47,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:47,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:47,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:11:47,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:47,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:47,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:47,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:47,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:11:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:47,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:47,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:47,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:47,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:11:47,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:47,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:47,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:47,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:47,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:47,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:47,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:47,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:11:47,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:47,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:47,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:47,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:11:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:47,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:47,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:47,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:11:47,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 11:11:47,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:47,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:11:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:11:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:11:47,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:47,188 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 11:11:47,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778629429] [2020-09-25 11:11:47,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:11:47,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 11:11:47,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722257568] [2020-09-25 11:11:47,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:11:47,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:11:47,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:11:47,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:11:47,192 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand 9 states. [2020-09-25 11:11:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:11:47,843 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2020-09-25 11:11:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 11:11:47,843 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 11:11:47,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:11:47,846 INFO L225 Difference]: With dead ends: 112 [2020-09-25 11:11:47,847 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 11:11:47,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 11:11:47,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 11:11:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2020-09-25 11:11:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 11:11:47,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-25 11:11:47,866 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 70 [2020-09-25 11:11:47,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:47,867 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-25 11:11:47,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:11:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-25 11:11:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 11:11:47,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:47,870 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 11:11:47,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:11:47,870 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:47,871 INFO L82 PathProgramCache]: Analyzing trace with hash 2087874581, now seen corresponding path program 1 times [2020-09-25 11:11:47,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:47,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366559751] [2020-09-25 11:11:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:47,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:47,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:49,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:51,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:51,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 11:11:51,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:11:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3581 [2020-09-25 11:11:51,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:51,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:11:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:11:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 11:11:51,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:51,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:51,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:51,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:51,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:11:51,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:51,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 11:11:51,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:51,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:51,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:11:51,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:51,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:11:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:51,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:51,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:51,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:51,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 11:11:51,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:51,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:51,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:11:51,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:51,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:51,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:51,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:51,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:11:51,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:51,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:51,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:51,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:11:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:51,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:51,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:51,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:51,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 11:11:51,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:51,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:11:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:51,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:51,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:51,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:51,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:51,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:51,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 11:11:51,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:51,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:11:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:11:51,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:51,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:11:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:51,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:51,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:51,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:11:51,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 11:11:51,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:51,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:11:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:11:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:11:51,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:11:51,906 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 11:11:51,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366559751] [2020-09-25 11:11:51,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:11:51,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 11:11:51,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478182038] [2020-09-25 11:11:51,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 11:11:51,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:11:51,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 11:11:51,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 11:11:51,908 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 13 states. [2020-09-25 11:11:53,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:11:53,116 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-09-25 11:11:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 11:11:53,117 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-09-25 11:11:53,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:11:53,119 INFO L225 Difference]: With dead ends: 176 [2020-09-25 11:11:53,119 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 11:11:53,124 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 11:11:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 11:11:53,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-09-25 11:11:53,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 11:11:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 11:11:53,146 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 71 [2020-09-25 11:11:53,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:53,146 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 11:11:53,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 11:11:53,147 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 11:11:53,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 11:11:53,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:53,148 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 11:11:53,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:11:53,149 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:53,149 INFO L82 PathProgramCache]: Analyzing trace with hash 6599122, now seen corresponding path program 1 times [2020-09-25 11:11:53,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:53,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309733957] [2020-09-25 11:11:53,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:53,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:53,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:53,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:56,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:56,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 11:11:56,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:11:56,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3582 [2020-09-25 11:11:56,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:56,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 11:11:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:11:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:11:56,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:56,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:56,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:56,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:56,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:11:56,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:56,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:11:56,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:56,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:56,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:56,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:11:56,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:11:56,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:11:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:56,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:56,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:56,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:56,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:56,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 11:11:56,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:56,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:11:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:56,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:57,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:57,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:57,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:57,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 11:11:57,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:57,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:11:57,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:57,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:11:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:57,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:11:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:57,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:57,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:57,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:11:57,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 11:11:57,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:57,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:57,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:11:57,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:57,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:11:57,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:57,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:11:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:57,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:57,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:57,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:11:57,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:11:57,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:57,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:57,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:57,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:57,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:11:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:57,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:57,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:57,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:11:57,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:57,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 11:11:57,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:57,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:11:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:11:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:11:57,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:57,341 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 11:11:57,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309733957] [2020-09-25 11:11:57,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:11:57,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 11:11:57,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755910603] [2020-09-25 11:11:57,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 11:11:57,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:11:57,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 11:11:57,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:11:57,344 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 16 states. [2020-09-25 11:11:58,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:11:58,972 INFO L93 Difference]: Finished difference Result 184 states and 216 transitions. [2020-09-25 11:11:58,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 11:11:58,973 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 11:11:58,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:11:58,975 INFO L225 Difference]: With dead ends: 184 [2020-09-25 11:11:58,975 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 11:11:58,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 11:11:58,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 11:11:58,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 99. [2020-09-25 11:11:58,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 11:11:58,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 11:11:58,990 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 71 [2020-09-25 11:11:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:11:58,991 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 11:11:58,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 11:11:58,991 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 11:11:58,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 11:11:58,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:11:58,992 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 11:11:58,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:11:58,993 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:11:58,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:11:58,993 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 11:11:58,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:11:58,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005262533] [2020-09-25 11:11:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:11:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:59,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:59,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:59,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 11:11:59,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:59,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 786 [2020-09-25 11:11:59,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:59,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 11:11:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 11:11:59,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 11:11:59,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:11:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:11:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:59,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:11:59,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:11:59,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:11:59,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:11:59,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:11:59,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:11:59,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:11:59,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:11:59,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:11:59,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:11:59,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:11:59,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:11:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:11:59,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:00,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:00,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:00,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:00,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 11:12:00,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:00,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:00,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:12:00,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 11:12:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:00,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:00,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:00,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:00,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:00,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:00,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:12:00,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:00,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:00,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:00,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:00,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:00,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:00,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:12:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:00,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:00,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:00,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:00,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 11:12:00,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:00,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:12:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 11:12:00,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:00,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:00,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:00,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:00,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:00,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 11:12:00,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:00,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:12:00,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:00,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 11:12:00,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:12:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:00,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:00,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:12:00,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:00,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 11:12:00,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:00,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:00,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:12:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:00,493 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 11:12:00,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005262533] [2020-09-25 11:12:00,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:00,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 11:12:00,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393523894] [2020-09-25 11:12:00,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 11:12:00,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:00,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 11:12:00,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 11:12:00,495 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 11:12:02,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:02,066 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 11:12:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 11:12:02,066 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 11:12:02,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:02,069 INFO L225 Difference]: With dead ends: 118 [2020-09-25 11:12:02,069 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 11:12:02,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 11:12:02,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 11:12:02,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 11:12:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 11:12:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 11:12:02,100 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 11:12:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:02,100 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 11:12:02,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 11:12:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 11:12:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 11:12:02,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:02,102 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 11:12:02,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:12:02,102 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:02,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:02,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 11:12:02,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:02,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59931993] [2020-09-25 11:12:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:02,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:02,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:04,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:04,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 11:12:04,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:12:04,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2492 [2020-09-25 11:12:04,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:04,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 11:12:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 11:12:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 11:12:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:04,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:04,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:04,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:04,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:12:04,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:04,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:12:04,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:04,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:04,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:12:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:04,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:04,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:04,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:04,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:04,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 11:12:04,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:04,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:12:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 11:12:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:04,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:04,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:04,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:04,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:04,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:04,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:12:04,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:04,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:04,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:04,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:12:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:04,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:04,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:04,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 11:12:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:05,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:05,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:05,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:05,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 11:12:05,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:05,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:12:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 11:12:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:05,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:12:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:05,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:12:05,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 11:12:05,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:05,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 11:12:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:05,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:05,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:05,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:12:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 11:12:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:05,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:12:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:05,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 11:12:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:05,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:05,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:05,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:05,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:12:05,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:05,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:12:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:12:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:05,336 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 11:12:05,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59931993] [2020-09-25 11:12:05,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:05,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 11:12:05,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960607071] [2020-09-25 11:12:05,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 11:12:05,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:05,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 11:12:05,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 11:12:05,338 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 24 states. [2020-09-25 11:12:06,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:06,826 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 11:12:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 11:12:06,826 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 11:12:06,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:06,829 INFO L225 Difference]: With dead ends: 104 [2020-09-25 11:12:06,829 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 11:12:06,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 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 11:12:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 11:12:06,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2020-09-25 11:12:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 11:12:06,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2020-09-25 11:12:06,840 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 85 [2020-09-25 11:12:06,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:06,841 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2020-09-25 11:12:06,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 11:12:06,841 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2020-09-25 11:12:06,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 11:12:06,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:06,843 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 11:12:06,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 11:12:06,843 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:06,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:06,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1173492322, now seen corresponding path program 2 times [2020-09-25 11:12:06,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:06,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549779414] [2020-09-25 11:12:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:06,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:07,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 11:12:08,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:12:08,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1385 [2020-09-25 11:12:08,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:12:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 11:12:08,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 11:12:08,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:12:08,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:12:08,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:08,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:08,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:12:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:08,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:12:08,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:08,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:08,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:08,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:08,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:12:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:08,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:12:08,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:08,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:08,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:08,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:08,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:12:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:12:08,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:12:08,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:12:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:08,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:08,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 11:12:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:12:08,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 11:12:08,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:12:08,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:08,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:12:08,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 11:12:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:08,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:08,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:08,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 11:12:08,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:08,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:12:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:12:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:08,590 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 11:12:08,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549779414] [2020-09-25 11:12:08,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:08,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:12:08,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125072074] [2020-09-25 11:12:08,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:12:08,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:08,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:12:08,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:12:08,592 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand 10 states. [2020-09-25 11:12:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:09,174 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-09-25 11:12:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:12:09,175 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 11:12:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:09,177 INFO L225 Difference]: With dead ends: 113 [2020-09-25 11:12:09,177 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 11:12:09,177 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 11:12:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 11:12:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-25 11:12:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 11:12:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 11:12:09,187 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 11:12:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:09,187 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 11:12:09,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:12:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 11:12:09,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 11:12:09,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:09,190 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 11:12:09,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 11:12:09,190 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:09,190 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 11:12:09,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:09,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342460005] [2020-09-25 11:12:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:09,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:09,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:12,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 11:12:14,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:12:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 11:12:14,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 11:12:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:12:14,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 11:12:14,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:12:14,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:12:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:14,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:12:14,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:14,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:12:14,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:14,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:14,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:14,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:14,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 11:12:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:14,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:12:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:14,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:14,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:14,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:14,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 11:12:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:12:14,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 11:12:14,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:12:14,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:12:14,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:12:14,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 11:12:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:12:14,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:12:14,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:12:14,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 11:12:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:14,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:14,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:14,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:14,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:14,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:12:14,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:14,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:14,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:12:14,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:14,611 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 11:12:14,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342460005] [2020-09-25 11:12:14,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:14,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 11:12:14,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689786689] [2020-09-25 11:12:14,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:12:14,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:14,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:12:14,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:12:14,613 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 12 states. [2020-09-25 11:12:15,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:15,526 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2020-09-25 11:12:15,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 11:12:15,527 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 11:12:15,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:15,529 INFO L225 Difference]: With dead ends: 117 [2020-09-25 11:12:15,529 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 11:12:15,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2020-09-25 11:12:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 11:12:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-09-25 11:12:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 11:12:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2020-09-25 11:12:15,540 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 86 [2020-09-25 11:12:15,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:15,540 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2020-09-25 11:12:15,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:12:15,540 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2020-09-25 11:12:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 11:12:15,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:15,542 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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 11:12:15,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 11:12:15,543 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:15,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:15,543 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 11:12:15,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:15,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548110510] [2020-09-25 11:12:15,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 11:12:15,564 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 11:12:15,565 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 11:12:15,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 11:12:15,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:12:15 BoogieIcfgContainer [2020-09-25 11:12:15,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:12:15,593 INFO L168 Benchmark]: Toolchain (without parser) took 42126.39 ms. Allocated memory was 139.5 MB in the beginning and 512.2 MB in the end (delta: 372.8 MB). Free memory was 101.5 MB in the beginning and 217.8 MB in the end (delta: -116.2 MB). Peak memory consumption was 256.5 MB. Max. memory is 7.1 GB. [2020-09-25 11:12:15,594 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 11:12:15,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.50 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 168.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-09-25 11:12:15,596 INFO L168 Benchmark]: Boogie Preprocessor took 58.27 ms. Allocated memory is still 202.9 MB. Free memory was 168.1 MB in the beginning and 165.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 11:12:15,597 INFO L168 Benchmark]: RCFGBuilder took 613.68 ms. Allocated memory is still 202.9 MB. Free memory was 165.4 MB in the beginning and 118.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:12:15,598 INFO L168 Benchmark]: TraceAbstraction took 40719.78 ms. Allocated memory was 202.9 MB in the beginning and 512.2 MB in the end (delta: 309.3 MB). Free memory was 118.2 MB in the beginning and 217.8 MB in the end (delta: -99.6 MB). Peak memory consumption was 209.8 MB. Max. memory is 7.1 GB. [2020-09-25 11:12:15,601 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.50 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 168.1 MB in the end (delta: -67.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.27 ms. Allocated memory is still 202.9 MB. Free memory was 168.1 MB in the beginning and 165.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 613.68 ms. Allocated memory is still 202.9 MB. Free memory was 165.4 MB in the beginning and 118.2 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40719.78 ms. Allocated memory was 202.9 MB in the beginning and 512.2 MB in the end (delta: 309.3 MB). Free memory was 118.2 MB in the beginning and 217.8 MB in the end (delta: -99.6 MB). Peak memory consumption was 209.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L867] void * guard_malloc_counter = 0; [L887] struct list_head *elem = ((void *)0); [L900] static struct list_head head; [L903] struct list_head *dev1, *dev2; [L904] CALL, EXPR my_malloc(sizeof(*dev1)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L904] RET, EXPR my_malloc(sizeof(*dev1)) [L904] dev1 = my_malloc(sizeof(*dev1)) [L905] CALL, EXPR my_malloc(sizeof(*dev2)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L905] RET, EXPR my_malloc(sizeof(*dev2)) [L905] dev2 = my_malloc(sizeof(*dev2)) [L906] COND TRUE dev1!=((void *)0) && dev2!=((void *)0) [L907] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L907] RET list_add(dev2, &head) [L908] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new [L908] RET list_add(dev1, &head) [L909] CALL list_del(dev2) [L896] COND FALSE !(entry==elem) [L909] RET list_del(dev2) [L910] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L910] RET list_add(dev2, &head) [L913] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L890] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.6s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 555 SDtfs, 978 SDslu, 1588 SDs, 0 SdLazy, 5308 SolverSat, 392 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 113 SyntacticMatches, 6 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred 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, 52 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 30.4s InterpolantComputationTime, 715 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 186296 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 incorrect! Received shutdown request...