/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=0.5 --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 14:34:33,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:34:33,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:34:33,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:34:33,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:34:33,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:34:33,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:34:33,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:34:33,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:34:33,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:34:33,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:34:33,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:34:33,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:34:33,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:34:33,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:34:33,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:34:33,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:34:33,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:34:33,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:34:33,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:34:33,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:34:33,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:34:33,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:34:33,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:34:33,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:34:33,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:34:33,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:34:33,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:34:33,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:34:33,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:34:33,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:34:33,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:34:33,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:34:33,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:34:33,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:34:33,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:34:33,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:34:33,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:34:33,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:34:33,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:34:33,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:34:33,991 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 14:34:34,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:34:34,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:34:34,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:34:34,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:34:34,028 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:34:34,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:34:34,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:34:34,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:34:34,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:34:34,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:34:34,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:34:34,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:34:34,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:34:34,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:34:34,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:34:34,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:34:34,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:34:34,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:34:34,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:34:34,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:34:34,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:34:34,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:34:34,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:34:34,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:34:34,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:34:34,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:34:34,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:34:34,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:34:34,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:34:34,034 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:34:34,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:34:34,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:34:34,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:34:34,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:34:34,544 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:34:34,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 14:34:34,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7170709a3/4f1b0c3fa866419793cc8a0526522b2e/FLAGe0a1f9b5f [2020-09-25 14:34:35,283 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:34:35,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-25 14:34:35,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7170709a3/4f1b0c3fa866419793cc8a0526522b2e/FLAGe0a1f9b5f [2020-09-25 14:34:35,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7170709a3/4f1b0c3fa866419793cc8a0526522b2e [2020-09-25 14:34:35,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:34:35,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:34:35,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:34:35,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:34:35,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:34:35,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:34:35" (1/1) ... [2020-09-25 14:34:35,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d78f5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:35, skipping insertion in model container [2020-09-25 14:34:35,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:34:35" (1/1) ... [2020-09-25 14:34:35,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:34:35,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:34:35,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:34:35,975 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:34:36,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:34:36,222 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:34:36,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36 WrapperNode [2020-09-25 14:34:36,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:34:36,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:34:36,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:34:36,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:34:36,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (1/1) ... [2020-09-25 14:34:36,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (1/1) ... [2020-09-25 14:34:36,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (1/1) ... [2020-09-25 14:34:36,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (1/1) ... [2020-09-25 14:34:36,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (1/1) ... [2020-09-25 14:34:36,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (1/1) ... [2020-09-25 14:34:36,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (1/1) ... [2020-09-25 14:34:36,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:34:36,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:34:36,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:34:36,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:34:36,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (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 14:34:36,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:34:36,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:34:36,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 14:34:36,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 14:34:36,369 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 14:34:36,369 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 14:34:36,369 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 14:34:36,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:34:36,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:34:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 14:34:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 14:34:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 14:34:36,371 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 14:34:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 14:34:36,372 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 14:34:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 14:34:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 14:34:36,373 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 14:34:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 14:34:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 14:34:36,374 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 14:34:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 14:34:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 14:34:36,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 14:34:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 14:34:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 14:34:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 14:34:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 14:34:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 14:34:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 14:34:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 14:34:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 14:34:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 14:34:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 14:34:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 14:34:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 14:34:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 14:34:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 14:34:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 14:34:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 14:34:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 14:34:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 14:34:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 14:34:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 14:34:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 14:34:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 14:34:36,381 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 14:34:36,382 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 14:34:36,382 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:34:36,382 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 14:34:36,382 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 14:34:36,383 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 14:34:36,383 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 14:34:36,383 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 14:34:36,383 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 14:34:36,383 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 14:34:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 14:34:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 14:34:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 14:34:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 14:34:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 14:34:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 14:34:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 14:34:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 14:34:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 14:34:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 14:34:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 14:34:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 14:34:36,386 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 14:34:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 14:34:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 14:34:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 14:34:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 14:34:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 14:34:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 14:34:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 14:34:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 14:34:36,389 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 14:34:36,390 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 14:34:36,390 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 14:34:36,390 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 14:34:36,390 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 14:34:36,391 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 14:34:36,391 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 14:34:36,391 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 14:34:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 14:34:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 14:34:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 14:34:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 14:34:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 14:34:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 14:34:36,392 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 14:34:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 14:34:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 14:34:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 14:34:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 14:34:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 14:34:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 14:34:36,393 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 14:34:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 14:34:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 14:34:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 14:34:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 14:34:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 14:34:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 14:34:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 14:34:36,395 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 14:34:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 14:34:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 14:34:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 14:34:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 14:34:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:34:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 14:34:36,396 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 14:34:36,397 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:34:36,397 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 14:34:36,397 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 14:34:36,397 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 14:34:36,398 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 14:34:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 14:34:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 14:34:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 14:34:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 14:34:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 14:34:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 14:34:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 14:34:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 14:34:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 14:34:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 14:34:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:34:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 14:34:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 14:34:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 14:34:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 14:34:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:34:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:34:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:34:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 14:34:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:34:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:34:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:34:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:34:36,949 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:34:36,949 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:34:36,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:34:36 BoogieIcfgContainer [2020-09-25 14:34:36,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:34:36,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:34:36,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:34:36,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:34:36,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:34:35" (1/3) ... [2020-09-25 14:34:36,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a88f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:34:36, skipping insertion in model container [2020-09-25 14:34:36,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:34:36" (2/3) ... [2020-09-25 14:34:36,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a88f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:34:36, skipping insertion in model container [2020-09-25 14:34:36,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:34:36" (3/3) ... [2020-09-25 14:34:36,973 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-25 14:34:36,983 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:34:36,994 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:34:37,016 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:34:37,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:34:37,045 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:34:37,045 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:34:37,045 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:34:37,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:34:37,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:34:37,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:34:37,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:34:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-25 14:34:37,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 14:34:37,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:37,078 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 14:34:37,078 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:37,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-25 14:34:37,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:37,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608549137] [2020-09-25 14:34:37,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:37,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:34:37,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-09-25 14:34:37,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:37,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:34:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:34:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:34:37,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:34:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:37,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:37,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:37,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:34:37,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:34:37,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:37,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:37,781 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 14:34:37,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608549137] [2020-09-25 14:34:37,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:37,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:34:37,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66142406] [2020-09-25 14:34:37,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:34:37,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:37,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:34:37,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:34:37,812 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-25 14:34:38,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:38,322 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-25 14:34:38,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:34:38,324 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 14:34:38,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:38,339 INFO L225 Difference]: With dead ends: 128 [2020-09-25 14:34:38,340 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 14:34:38,345 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 14:34:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 14:34:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-25 14:34:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 14:34:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-25 14:34:38,408 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-25 14:34:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:38,409 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-25 14:34:38,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:34:38,409 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-25 14:34:38,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 14:34:38,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:38,416 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 14:34:38,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:34:38,416 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:38,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:38,420 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-25 14:34:38,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:38,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770280267] [2020-09-25 14:34:38,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:38,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:39,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:42,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 14:34:42,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:34:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4132 [2020-09-25 14:34:42,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:42,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:34:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 14:34:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 14:34:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:34:42,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:42,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:42,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:42,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:34:42,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:34:42,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:42,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:42,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:34:42,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:34:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:42,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:42,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:42,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:42,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 14:34:42,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:42,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:34:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:34:42,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:42,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:42,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:43,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:43,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:43,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 14:34:43,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:43,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:34:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:34:43,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:43,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:34:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:43,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:43,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:43,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:43,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:43,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 14:34:43,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:43,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:34:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:43,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:43,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:43,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:43,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:43,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:43,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:34:43,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:43,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:43,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:43,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 14:34:43,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770280267] [2020-09-25 14:34:43,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:34:43,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:34:43,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125032455] [2020-09-25 14:34:43,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:34:43,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:43,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:34:43,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:34:43,136 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 9 states. [2020-09-25 14:34:43,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:43,493 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2020-09-25 14:34:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:34:43,493 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-25 14:34:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:43,495 INFO L225 Difference]: With dead ends: 102 [2020-09-25 14:34:43,496 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 14:34:43,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:34:43,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 14:34:43,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2020-09-25 14:34:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 14:34:43,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2020-09-25 14:34:43,528 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 61 [2020-09-25 14:34:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:43,529 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2020-09-25 14:34:43,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:34:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2020-09-25 14:34:43,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 14:34:43,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:43,534 INFO L422 BasicCegarLoop]: trace histogram [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 14:34:43,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:34:43,535 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:43,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:43,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1260495361, now seen corresponding path program 1 times [2020-09-25 14:34:43,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:43,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556955320] [2020-09-25 14:34:43,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:43,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:43,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:44,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 14:34:44,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:34:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 927 [2020-09-25 14:34:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:44,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:34:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:34:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:34:44,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:44,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:44,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:44,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:44,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:34:44,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:44,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 14:34:44,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:44,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:44,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:34:44,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:44,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:34:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:44,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:44,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:44,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:44,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:34:44,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:44,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:34:44,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:44,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:44,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:44,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:44,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:44,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:44,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:34:44,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:44,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:44,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:34:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:44,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:44,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:44,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:44,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:34:44,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:44,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:34:44,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:44,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:44,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:44,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:44,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:44,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:34:44,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:44,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 14:34:44,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556955320] [2020-09-25 14:34:44,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:44,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:34:44,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719712678] [2020-09-25 14:34:44,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:34:44,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:44,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:34:44,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:34:44,832 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 8 states. [2020-09-25 14:34:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:45,562 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2020-09-25 14:34:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:34:45,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 14:34:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:45,567 INFO L225 Difference]: With dead ends: 110 [2020-09-25 14:34:45,567 INFO L226 Difference]: Without dead ends: 107 [2020-09-25 14:34:45,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:34:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-09-25 14:34:45,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2020-09-25 14:34:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 14:34:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2020-09-25 14:34:45,598 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 61 [2020-09-25 14:34:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:45,598 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2020-09-25 14:34:45,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:34:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2020-09-25 14:34:45,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 14:34:45,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:45,604 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 14:34:45,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:34:45,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:45,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1814582916, now seen corresponding path program 1 times [2020-09-25 14:34:45,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:45,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808966091] [2020-09-25 14:34:45,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:45,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:45,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:47,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:47,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:34:47,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:34:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1405 [2020-09-25 14:34:47,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:47,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:34:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:34:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:34:47,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:47,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:47,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:47,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:47,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:34:47,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 14:34:47,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:47,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:34:47,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:47,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:34:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:47,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:47,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:47,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:47,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:34:47,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:47,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:34:47,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:47,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:47,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:47,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:47,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:47,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:34:47,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:47,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:47,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:47,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:34:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:47,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:47,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:47,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:47,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:47,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 14:34:47,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:47,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:47,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:34:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:47,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:47,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:47,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:47,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:47,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:47,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:34:47,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:47,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:47,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 14:34:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:47,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:47,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:47,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:34:47,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:47,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:34:47,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:47,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:47,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:34:47,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:34:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:34:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:47,422 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 14:34:47,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808966091] [2020-09-25 14:34:47,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:34:47,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:34:47,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356970707] [2020-09-25 14:34:47,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:34:47,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:47,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:34:47,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:34:47,427 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand 9 states. [2020-09-25 14:34:48,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:48,115 INFO L93 Difference]: Finished difference Result 118 states and 133 transitions. [2020-09-25 14:34:48,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:34:48,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 14:34:48,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:48,120 INFO L225 Difference]: With dead ends: 118 [2020-09-25 14:34:48,120 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 14:34:48,121 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 14:34:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 14:34:48,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2020-09-25 14:34:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 14:34:48,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-09-25 14:34:48,146 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 70 [2020-09-25 14:34:48,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:48,147 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-09-25 14:34:48,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:34:48,147 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-09-25 14:34:48,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 14:34:48,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:48,152 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 14:34:48,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:34:48,152 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:48,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1230540462, now seen corresponding path program 1 times [2020-09-25 14:34:48,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:48,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058604638] [2020-09-25 14:34:48,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:48,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:48,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:48,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:50,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:50,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 14:34:50,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:34:50,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2672 [2020-09-25 14:34:50,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:50,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:34:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:34:50,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:34:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:34:50,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:50,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:50,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:34:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:34:50,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:50,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:34:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:50,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:34:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:50,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:50,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:50,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:50,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:50,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:34:50,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:50,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:50,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:50,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:34:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:51,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:51,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:51,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:51,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:51,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:34:51,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:51,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:51,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:34:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:51,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:51,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:51,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:51,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:51,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 14:34:51,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:51,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:34:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:34:51,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:51,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:51,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:51,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:51,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:51,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:51,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:34:51,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:51,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:34:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:34:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:51,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 14:34:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:51,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:51,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:51,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:34:51,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:51,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 14:34:51,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:51,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:51,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:34:51,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:34:51,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:34:51,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 14:34:51,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058604638] [2020-09-25 14:34:51,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:51,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 14:34:51,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065427890] [2020-09-25 14:34:51,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:34:51,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:51,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:34:51,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:34:51,319 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 13 states. [2020-09-25 14:34:52,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:52,406 INFO L93 Difference]: Finished difference Result 176 states and 203 transitions. [2020-09-25 14:34:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:34:52,407 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-09-25 14:34:52,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:52,409 INFO L225 Difference]: With dead ends: 176 [2020-09-25 14:34:52,409 INFO L226 Difference]: Without dead ends: 104 [2020-09-25 14:34:52,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 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 14:34:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-25 14:34:52,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 99. [2020-09-25 14:34:52,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 14:34:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-09-25 14:34:52,423 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 71 [2020-09-25 14:34:52,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:52,423 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-09-25 14:34:52,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 14:34:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-09-25 14:34:52,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 14:34:52,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:52,425 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 14:34:52,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:34:52,426 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:52,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-25 14:34:52,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:52,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926637040] [2020-09-25 14:34:52,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:53,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:53,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 14:34:53,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 840 [2020-09-25 14:34:53,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:53,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 14:34:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 14:34:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 14:34:53,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:53,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:53,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:53,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:34:53,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:53,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:34:53,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:53,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:53,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:34:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:53,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:53,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:53,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:53,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 14:34:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:53,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:34:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:34:53,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:53,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:53,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:53,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:34:53,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:53,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:34:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:34:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:53,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:34:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:53,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:53,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:53,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:53,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:53,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 14:34:53,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:53,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:34:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:34:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 14:34:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:53,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:53,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:53,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:53,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:53,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:53,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:34:53,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:53,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:34:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:34:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 14:34:53,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:53,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 14:34:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:53,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:53,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:34:53,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 14:34:53,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:53,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:34:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:53,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:34:53,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:54,013 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 14:34:54,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926637040] [2020-09-25 14:34:54,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:34:54,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 14:34:54,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162345750] [2020-09-25 14:34:54,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 14:34:54,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:54,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 14:34:54,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 14:34:54,017 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 23 states. [2020-09-25 14:34:55,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:55,632 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-09-25 14:34:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 14:34:55,632 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 14:34:55,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:55,638 INFO L225 Difference]: With dead ends: 118 [2020-09-25 14:34:55,638 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 14:34:55,640 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 14:34:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 14:34:55,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-25 14:34:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 14:34:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2020-09-25 14:34:55,669 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 71 [2020-09-25 14:34:55,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:55,670 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2020-09-25 14:34:55,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 14:34:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2020-09-25 14:34:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 14:34:55,677 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:55,678 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 14:34:55,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:34:55,678 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:55,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:55,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-25 14:34:55,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:55,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830411870] [2020-09-25 14:34:55,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:55,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:56,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 14:34:58,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:34:58,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2553 [2020-09-25 14:34:58,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 14:34:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 14:34:58,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 14:34:58,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:58,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:34:58,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:34:58,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:58,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:34:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:58,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 14:34:58,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:34:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:34:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:58,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:58,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:34:58,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:34:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:34:58,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:58,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:34:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:34:58,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 14:34:58,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:34:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:34:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 14:34:58,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:58,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:34:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:34:58,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 14:34:58,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:34:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:34:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 14:34:58,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:58,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 14:34:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:34:58,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:34:58,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:34:58,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:58,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 14:34:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:34:58,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 14:34:58,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:34:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:34:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:58,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 14:34:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:58,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:58,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:58,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:34:58,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:58,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 14:34:58,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:58,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:34:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:34:58,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:34:58,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:59,020 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 14:34:59,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830411870] [2020-09-25 14:34:59,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:34:59,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 14:34:59,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133814860] [2020-09-25 14:34:59,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 14:34:59,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:59,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 14:34:59,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:34:59,023 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 24 states. [2020-09-25 14:35:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:00,569 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-25 14:35:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 14:35:00,570 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 14:35:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:00,571 INFO L225 Difference]: With dead ends: 104 [2020-09-25 14:35:00,571 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 14:35:00,574 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 14:35:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 14:35:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2020-09-25 14:35:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 14:35:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2020-09-25 14:35:00,588 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 85 [2020-09-25 14:35:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:00,589 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2020-09-25 14:35:00,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 14:35:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2020-09-25 14:35:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 14:35:00,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:00,594 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 14:35:00,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:35:00,594 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:00,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:00,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1173492322, now seen corresponding path program 2 times [2020-09-25 14:35:00,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:00,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162617035] [2020-09-25 14:35:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:00,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:00,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 14:35:02,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:35:02,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-09-25 14:35:02,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:35:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 14:35:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:35:02,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:02,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:35:02,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:35:02,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:02,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:02,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:35:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:35:02,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 14:35:02,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:02,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:02,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:02,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:02,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:35:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:35:02,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:35:02,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:02,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:35:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:35:02,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:35:02,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:02,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:35:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:35:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:35:02,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:02,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 14:35:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:35:02,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 14:35:02,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:35:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:35:02,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:02,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 14:35:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:35:02,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:35:02,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:35:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:35:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:35:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:02,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 14:35:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:02,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:02,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:35:02,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:35:02,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:02,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:02,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:35:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:35:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:35:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:02,422 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 14:35:02,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162617035] [2020-09-25 14:35:02,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:35:02,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:35:02,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485315800] [2020-09-25 14:35:02,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:35:02,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:02,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:35:02,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:35:02,426 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand 10 states. [2020-09-25 14:35:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:03,013 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-09-25 14:35:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:35:03,013 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 14:35:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:03,015 INFO L225 Difference]: With dead ends: 113 [2020-09-25 14:35:03,015 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 14:35:03,015 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 14:35:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 14:35:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-25 14:35:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 14:35:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 14:35:03,029 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 85 [2020-09-25 14:35:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:03,029 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 14:35:03,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:35:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 14:35:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 14:35:03,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:03,031 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 14:35:03,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:35:03,031 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:03,031 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-25 14:35:03,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:03,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688308313] [2020-09-25 14:35:03,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:03,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:06,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 14:35:08,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:35:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 14:35:08,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:35:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:35:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 14:35:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:08,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:35:08,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:35:08,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:35:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:35:08,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:08,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:35:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:35:08,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:35:08,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:35:08,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:08,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:35:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:08,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:35:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:35:08,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:35:08,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:08,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:08,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:35:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:35:08,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:35:08,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:35:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:08,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:35:08,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:08,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:35:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:35:08,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:35:08,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 14:35:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:35:08,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 14:35:08,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:35:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:35:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:35:08,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:08,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 14:35:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:35:08,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:35:08,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:35:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:35:08,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:08,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 14:35:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:08,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:08,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:08,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:35:08,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:08,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:35:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:35:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:08,576 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 14:35:08,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688308313] [2020-09-25 14:35:08,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:35:08,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 14:35:08,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391680057] [2020-09-25 14:35:08,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:35:08,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:08,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:35:08,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:35:08,579 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 12 states. [2020-09-25 14:35:09,120 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-09-25 14:35:09,536 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-09-25 14:35:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:09,750 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2020-09-25 14:35:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 14:35:09,750 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-09-25 14:35:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:09,751 INFO L225 Difference]: With dead ends: 117 [2020-09-25 14:35:09,751 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 14:35:09,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:35:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 14:35:09,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-09-25 14:35:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 14:35:09,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2020-09-25 14:35:09,761 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 86 [2020-09-25 14:35:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:09,761 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2020-09-25 14:35:09,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:35:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2020-09-25 14:35:09,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 14:35:09,763 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:09,763 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 14:35:09,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:35:09,763 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:09,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:09,764 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-25 14:35:09,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:09,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242453319] [2020-09-25 14:35:09,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:35:09,789 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:35:09,789 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:35:09,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 14:35:09,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:35:09 BoogieIcfgContainer [2020-09-25 14:35:09,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:35:09,820 INFO L168 Benchmark]: Toolchain (without parser) took 34302.62 ms. Allocated memory was 143.7 MB in the beginning and 436.7 MB in the end (delta: 293.1 MB). Free memory was 105.6 MB in the beginning and 313.0 MB in the end (delta: -207.3 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:09,821 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 125.1 MB in the beginning and 124.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 14:35:09,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.48 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 105.0 MB in the beginning and 171.4 MB in the end (delta: -66.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:09,823 INFO L168 Benchmark]: Boogie Preprocessor took 59.70 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 168.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:09,823 INFO L168 Benchmark]: RCFGBuilder took 673.89 ms. Allocated memory is still 205.5 MB. Free memory was 168.4 MB in the beginning and 121.5 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:09,824 INFO L168 Benchmark]: TraceAbstraction took 32855.41 ms. Allocated memory was 205.5 MB in the beginning and 436.7 MB in the end (delta: 231.2 MB). Free memory was 120.9 MB in the beginning and 313.0 MB in the end (delta: -192.0 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:09,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 143.7 MB. Free memory was 125.1 MB in the beginning and 124.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.48 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 105.0 MB in the beginning and 171.4 MB in the end (delta: -66.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.70 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 168.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 673.89 ms. Allocated memory is still 205.5 MB. Free memory was 168.4 MB in the beginning and 121.5 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32855.41 ms. Allocated memory was 205.5 MB in the beginning and 436.7 MB in the end (delta: 231.2 MB). Free memory was 120.9 MB in the beginning and 313.0 MB in the end (delta: -192.0 MB). Peak memory consumption was 39.2 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: 32.7s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 543 SDtfs, 911 SDslu, 1582 SDs, 0 SdLazy, 4428 SolverSat, 367 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 110 SyntacticMatches, 5 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 5.1s 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 46 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 23.4s InterpolantComputationTime, 705 NumberOfCodeBlocks, 705 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 602 ConstructedInterpolants, 0 QuantifiedInterpolants, 185900 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 136/180 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...