/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:26:30,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:26:30,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:26:30,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:26:30,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:26:30,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:26:30,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:26:30,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:26:30,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:26:30,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:26:30,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:26:30,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:26:30,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:26:30,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:26:30,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:26:30,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:26:30,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:26:30,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:26:30,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:26:30,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:26:30,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:26:30,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:26:30,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:26:30,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:26:30,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:26:30,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:26:30,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:26:30,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:26:30,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:26:30,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:26:30,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:26:30,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:26:30,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:26:30,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:26:30,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:26:30,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:26:30,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:26:30,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:26:30,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:26:30,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:26:30,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:26:30,946 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 13:26:30,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:26:30,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:26:30,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:26:30,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:26:30,997 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:26:30,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:26:30,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:26:30,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:26:30,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:26:30,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:26:31,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:26:31,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:26:31,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:26:31,001 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:26:31,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:26:31,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:26:31,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:26:31,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:26:31,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:26:31,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:26:31,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:26:31,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:26:31,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:26:31,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:26:31,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:26:31,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:26:31,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:26:31,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:26:31,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:26:31,004 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:26:31,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:26:31,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:26:31,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:26:31,490 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:26:31,490 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:26:31,491 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-09-25 13:26:31,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f965b3b51/23f9892b52d5443bbcd70202e8379bd6/FLAG65118337a [2020-09-25 13:26:32,246 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:26:32,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/list_search-1.i [2020-09-25 13:26:32,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f965b3b51/23f9892b52d5443bbcd70202e8379bd6/FLAG65118337a [2020-09-25 13:26:32,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f965b3b51/23f9892b52d5443bbcd70202e8379bd6 [2020-09-25 13:26:32,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:26:32,467 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:26:32,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:32,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:26:32,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:26:32,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:32" (1/1) ... [2020-09-25 13:26:32,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532b1c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:32, skipping insertion in model container [2020-09-25 13:26:32,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:26:32" (1/1) ... [2020-09-25 13:26:32,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:26:32,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:26:33,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:33,040 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:26:33,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:26:33,168 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:26:33,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33 WrapperNode [2020-09-25 13:26:33,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:26:33,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:26:33,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:26:33,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:26:33,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (1/1) ... [2020-09-25 13:26:33,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (1/1) ... [2020-09-25 13:26:33,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (1/1) ... [2020-09-25 13:26:33,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (1/1) ... [2020-09-25 13:26:33,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (1/1) ... [2020-09-25 13:26:33,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (1/1) ... [2020-09-25 13:26:33,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (1/1) ... [2020-09-25 13:26:33,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:26:33,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:26:33,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:26:33,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:26:33,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (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 13:26:33,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:26:33,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:26:33,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 13:26:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 13:26:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 13:26:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-09-25 13:26:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-09-25 13:26:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-09-25 13:26:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-09-25 13:26:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-09-25 13:26:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:26:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:26:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:26:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 13:26:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 13:26:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 13:26:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 13:26:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 13:26:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 13:26:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 13:26:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 13:26:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 13:26:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 13:26:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 13:26:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 13:26:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 13:26:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 13:26:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 13:26:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 13:26:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 13:26:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 13:26:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-09-25 13:26:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-09-25 13:26:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-09-25 13:26:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 13:26:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 13:26:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 13:26:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 13:26:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 13:26:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 13:26:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 13:26:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 13:26:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 13:26:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 13:26:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 13:26:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 13:26:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 13:26:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 13:26:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 13:26:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 13:26:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 13:26:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 13:26:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 13:26:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 13:26:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 13:26:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 13:26:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 13:26:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 13:26:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 13:26:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 13:26:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 13:26:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 13:26:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 13:26:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 13:26:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 13:26:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 13:26:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 13:26:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 13:26:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:26:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 13:26:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 13:26:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:26:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 13:26:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 13:26:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 13:26:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 13:26:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 13:26:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 13:26:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 13:26:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 13:26:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 13:26:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 13:26:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 13:26:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 13:26:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 13:26:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 13:26:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 13:26:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 13:26:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 13:26:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 13:26:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 13:26:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 13:26:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 13:26:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 13:26:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 13:26:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 13:26:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 13:26:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 13:26:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 13:26:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 13:26:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 13:26:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 13:26:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 13:26:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 13:26:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 13:26:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 13:26:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 13:26:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 13:26:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 13:26:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 13:26:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 13:26:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 13:26:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 13:26:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 13:26:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 13:26:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 13:26:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 13:26:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 13:26:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 13:26:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 13:26:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-09-25 13:26:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:26:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:26:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-09-25 13:26:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:26:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:26:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:26:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:26:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:26:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:26:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:26:33,907 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:26:33,907 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 13:26:33,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:33 BoogieIcfgContainer [2020-09-25 13:26:33,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:26:33,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:26:33,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:26:33,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:26:33,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:26:32" (1/3) ... [2020-09-25 13:26:33,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279c8b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:33, skipping insertion in model container [2020-09-25 13:26:33,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:26:33" (2/3) ... [2020-09-25 13:26:33,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279c8b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:33, skipping insertion in model container [2020-09-25 13:26:33,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:33" (3/3) ... [2020-09-25 13:26:33,922 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-09-25 13:26:33,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:26:33,943 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:26:33,966 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:26:33,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:26:33,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:26:33,998 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:26:33,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:26:33,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:26:33,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:26:33,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:26:33,998 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:26:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-09-25 13:26:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 13:26:34,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:34,036 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:34,036 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:34,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:34,044 INFO L82 PathProgramCache]: Analyzing trace with hash 42223880, now seen corresponding path program 1 times [2020-09-25 13:26:34,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:34,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397474879] [2020-09-25 13:26:34,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:34,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:34,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:34,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:35,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:39,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:26:39,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:26:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:26:39,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:39,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:26:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 13:26:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:26:39,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:26:39,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:39,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:39,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:26:39,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:39,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:26:39,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:39,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:26:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:39,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:39,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:26:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:39,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:26:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:39,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:39,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:39,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 13:26:39,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:39,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:39,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:39,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 13:26:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:39,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:39,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:39,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 13:26:39,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:39,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:26:39,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:39,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 13:26:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:39,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:39,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:39,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:39,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 13:26:39,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:39,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:39,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:39,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:26:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:26:39,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 13:26:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:39,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:39,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:39,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:26:39,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:26:39,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:39,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 13:26:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 38 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 13:26:39,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397474879] [2020-09-25 13:26:39,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:26:39,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:26:39,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832949203] [2020-09-25 13:26:39,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:26:39,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:39,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:26:39,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:26:39,843 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 9 states. [2020-09-25 13:26:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:40,471 INFO L93 Difference]: Finished difference Result 187 states and 225 transitions. [2020-09-25 13:26:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:26:40,474 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-25 13:26:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:40,488 INFO L225 Difference]: With dead ends: 187 [2020-09-25 13:26:40,489 INFO L226 Difference]: Without dead ends: 92 [2020-09-25 13:26:40,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:26:40,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-25 13:26:40,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 73. [2020-09-25 13:26:40,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 13:26:40,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2020-09-25 13:26:40,559 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 82 [2020-09-25 13:26:40,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:40,560 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2020-09-25 13:26:40,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:26:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2020-09-25 13:26:40,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 13:26:40,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:40,568 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:40,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:26:40,569 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:40,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:40,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1050718625, now seen corresponding path program 1 times [2020-09-25 13:26:40,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:40,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773656372] [2020-09-25 13:26:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:40,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:40,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:41,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 13:26:41,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-09-25 13:26:41,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:41,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:41,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:26:41,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 13:26:41,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:26:41,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:41,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:41,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:41,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:26:41,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:41,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:26:41,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:41,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:41,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:26:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:41,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:41,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:26:41,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:41,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:41,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:26:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:41,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:41,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:41,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:26:41,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:41,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:41,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:41,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:26:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:41,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:41,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:41,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:41,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:41,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:41,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:41,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:26:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:41,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:41,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:41,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:41,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:41,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:41,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:26:41,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:41,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 13:26:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:41,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 13:26:41,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:41,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:41,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 13:26:41,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:26:41,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:26:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:26:42,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773656372] [2020-09-25 13:26:42,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:42,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:26:42,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967123695] [2020-09-25 13:26:42,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:26:42,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:42,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:26:42,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:26:42,021 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 10 states. [2020-09-25 13:26:42,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:42,708 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-09-25 13:26:42,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:26:42,711 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-25 13:26:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:42,715 INFO L225 Difference]: With dead ends: 113 [2020-09-25 13:26:42,715 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 13:26:42,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:26:42,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 13:26:42,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2020-09-25 13:26:42,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 13:26:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-09-25 13:26:42,745 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 89 [2020-09-25 13:26:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:42,745 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-09-25 13:26:42,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:26:42,746 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-09-25 13:26:42,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 13:26:42,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:42,750 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:42,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:26:42,751 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:42,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:42,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1346991358, now seen corresponding path program 1 times [2020-09-25 13:26:42,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:42,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222485162] [2020-09-25 13:26:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:42,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:43,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:43,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 13:26:43,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1154 [2020-09-25 13:26:43,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:43,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:43,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:26:43,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 13:26:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:26:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:44,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:44,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:44,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:44,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:26:44,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:44,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:26:44,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:44,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:26:44,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:26:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:44,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:44,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:44,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:44,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:26:44,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:44,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:44,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:44,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:26:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:44,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:44,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:44,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:44,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:44,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:26:44,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:44,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:44,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:26:44,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:26:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:44,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:44,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:44,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:44,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:44,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:26:44,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:44,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:44,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:44,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:26:44,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:26:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:44,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:44,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:44,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:44,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 13:26:44,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:44,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:26:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:26:44,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:44,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 13:26:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:44,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:44,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:44,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:26:44,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:44,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 13:26:44,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:44,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:44,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:26:44,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:26:44,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:26:44,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-09-25 13:26:44,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222485162] [2020-09-25 13:26:44,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:44,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 13:26:44,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72062871] [2020-09-25 13:26:44,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:26:44,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:44,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:26:44,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:26:44,653 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 13 states. [2020-09-25 13:26:45,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:45,584 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2020-09-25 13:26:45,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:26:45,586 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2020-09-25 13:26:45,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:45,588 INFO L225 Difference]: With dead ends: 95 [2020-09-25 13:26:45,588 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 13:26:45,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2020-09-25 13:26:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 13:26:45,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-09-25 13:26:45,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 13:26:45,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2020-09-25 13:26:45,606 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 91 [2020-09-25 13:26:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:45,609 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2020-09-25 13:26:45,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:26:45,609 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2020-09-25 13:26:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 13:26:45,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:45,616 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:45,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:26:45,617 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:45,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:45,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2140447576, now seen corresponding path program 1 times [2020-09-25 13:26:45,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:45,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016136659] [2020-09-25 13:26:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:45,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:45,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:46,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:47,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:48,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:50,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:50,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 13:26:50,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:26:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 13:26:50,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:50,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:26:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 13:26:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 13:26:50,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:50,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:50,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:50,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:50,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:26:50,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:50,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:26:50,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:50,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:50,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:50,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:50,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:26:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:50,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:50,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:50,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 13:26:50,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:50,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:50,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:50,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:50,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:26:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:50,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:50,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:50,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:50,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:26:50,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:50,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:50,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:50,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:26:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:50,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:50,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:50,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:50,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:50,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 13:26:50,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:50,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:26:50,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:50,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:26:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:50,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:51,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:51,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:51,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 13:26:51,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:51,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:26:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:26:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:26:51,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:51,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 13:26:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:51,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:51,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:51,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:26:51,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 13:26:51,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:51,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:26:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 13:26:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:26:51,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 13:26:51,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016136659] [2020-09-25 13:26:51,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:26:51,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 13:26:51,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749439320] [2020-09-25 13:26:51,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 13:26:51,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:51,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 13:26:51,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:26:51,525 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 16 states. [2020-09-25 13:26:53,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:53,375 INFO L93 Difference]: Finished difference Result 134 states and 142 transitions. [2020-09-25 13:26:53,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 13:26:53,376 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 99 [2020-09-25 13:26:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:53,378 INFO L225 Difference]: With dead ends: 134 [2020-09-25 13:26:53,379 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 13:26:53,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=262, Invalid=1220, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 13:26:53,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 13:26:53,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 87. [2020-09-25 13:26:53,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 13:26:53,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-25 13:26:53,400 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 99 [2020-09-25 13:26:53,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:53,401 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-25 13:26:53,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 13:26:53,401 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-25 13:26:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 13:26:53,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:53,403 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:53,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:26:53,405 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:53,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1242921541, now seen corresponding path program 1 times [2020-09-25 13:26:53,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:53,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935819522] [2020-09-25 13:26:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:53,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:54,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:58,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:58,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 13:26:58,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:58,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 13:26:58,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:58,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 13:26:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 13:26:58,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 13:26:58,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:58,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:58,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:58,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:58,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:26:58,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:58,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:26:58,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:58,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:58,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:58,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:26:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:58,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:58,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:26:58,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:26:58,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:58,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:58,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:58,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:26:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:58,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:58,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:58,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:58,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:26:58,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:58,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:58,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:26:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:58,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:58,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:58,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:58,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:58,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 13:26:58,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:58,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:58,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:26:58,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:58,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:26:58,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:26:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:58,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:59,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:59,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:26:59,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:59,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 13:26:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:59,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:26:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:26:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:26:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:59,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 13:26:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:59,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:59,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:59,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 13:26:59,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:59,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 13:26:59,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:59,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:26:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:26:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 13:26:59,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 13:26:59,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935819522] [2020-09-25 13:26:59,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:26:59,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 13:26:59,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115747648] [2020-09-25 13:26:59,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 13:26:59,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:59,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 13:26:59,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:26:59,959 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 24 states. [2020-09-25 13:27:01,623 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2020-09-25 13:27:02,140 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-09-25 13:27:02,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:02,595 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-09-25 13:27:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 13:27:02,596 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 101 [2020-09-25 13:27:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:02,598 INFO L225 Difference]: With dead ends: 119 [2020-09-25 13:27:02,598 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 13:27:02,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=292, Invalid=1870, Unknown=0, NotChecked=0, Total=2162 [2020-09-25 13:27:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 13:27:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 90. [2020-09-25 13:27:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 13:27:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2020-09-25 13:27:02,611 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 101 [2020-09-25 13:27:02,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:02,612 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2020-09-25 13:27:02,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 13:27:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2020-09-25 13:27:02,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-25 13:27:02,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:02,613 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-09-25 13:27:02,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:27:02,614 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:02,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1667050223, now seen corresponding path program 2 times [2020-09-25 13:27:02,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:02,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563970848] [2020-09-25 13:27:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:02,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:03,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:04,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:05,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:07,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 13:27:07,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:27:07,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 13:27:07,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:07,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 13:27:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 13:27:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:27:07,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:07,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:07,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:07,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:27:07,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:07,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:27:07,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:07,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:07,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:07,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:07,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:07,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:07,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:27:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:07,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:07,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:07,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:07,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:27:07,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:07,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:07,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:07,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:27:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:07,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:07,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:27:07,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:07,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:27:07,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:07,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:07,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:27:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:07,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:07,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:07,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:27:07,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:07,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 13:27:07,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:07,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:27:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:27:08,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:08,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:08,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:08,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:08,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:27:08,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 13:27:08,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:08,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:27:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:27:08,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:08,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 13:27:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:08,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:08,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:09,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:09,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 13:27:09,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:27:09,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-25 13:27:09,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:09,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:09,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:27:09,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 13:27:09,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 13:27:09,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 38 proven. 25 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 13:27:09,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563970848] [2020-09-25 13:27:09,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:27:09,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 13:27:09,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045467890] [2020-09-25 13:27:09,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 13:27:09,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:09,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 13:27:09,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:27:09,782 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand 24 states. [2020-09-25 13:27:10,737 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-09-25 13:27:11,581 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-09-25 13:27:11,807 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-09-25 13:27:12,149 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-09-25 13:27:12,336 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-09-25 13:27:12,518 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-09-25 13:27:12,704 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-09-25 13:27:12,912 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2020-09-25 13:27:13,181 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2020-09-25 13:27:13,553 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-09-25 13:27:13,763 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2020-09-25 13:27:14,043 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-09-25 13:27:14,291 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-09-25 13:27:14,491 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-09-25 13:27:14,720 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-09-25 13:27:15,068 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-09-25 13:27:15,287 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2020-09-25 13:27:15,474 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-09-25 13:27:15,689 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-09-25 13:27:16,101 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-09-25 13:27:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:16,187 INFO L93 Difference]: Finished difference Result 163 states and 171 transitions. [2020-09-25 13:27:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-25 13:27:16,188 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2020-09-25 13:27:16,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:16,190 INFO L225 Difference]: With dead ends: 163 [2020-09-25 13:27:16,190 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 13:27:16,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=451, Invalid=2855, Unknown=0, NotChecked=0, Total=3306 [2020-09-25 13:27:16,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 13:27:16,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 116. [2020-09-25 13:27:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-25 13:27:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2020-09-25 13:27:16,206 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 109 [2020-09-25 13:27:16,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:16,207 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 120 transitions. [2020-09-25 13:27:16,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 13:27:16,207 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 120 transitions. [2020-09-25 13:27:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 13:27:16,208 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:16,208 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-09-25 13:27:16,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:27:16,209 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:16,209 INFO L82 PathProgramCache]: Analyzing trace with hash -936170188, now seen corresponding path program 2 times [2020-09-25 13:27:16,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:16,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044149163] [2020-09-25 13:27:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:16,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:19,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:19,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 13:27:19,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3190 [2020-09-25 13:27:19,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:19,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 13:27:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 13:27:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 13:27:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:19,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:19,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:19,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:19,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:27:19,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:27:19,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:19,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:19,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:19,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:27:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:19,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:19,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:19,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 13:27:19,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:19,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:27:19,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:19,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:19,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:19,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:19,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:19,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:27:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:19,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:19,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:19,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:27:19,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:19,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 13:27:19,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:19,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:19,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:27:19,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:19,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:27:19,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:19,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:27:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:19,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:20,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:20,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:27:20,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:20,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-25 13:27:20,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:20,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:27:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:27:20,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:20,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 13:27:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:20,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:20,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:20,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:27:20,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 13:27:20,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:20,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:27:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:27:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:27:20,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:27:21,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 13:27:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:21,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:21,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:21,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 13:27:21,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:21,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 13:27:21,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:21,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:27:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:27:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 13:27:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1