/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:18:46,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:18:46,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:18:46,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:18:46,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:18:46,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:18:46,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:18:46,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:18:46,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:18:46,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:18:46,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:18:46,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:18:46,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:18:46,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:18:46,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:18:46,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:18:46,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:18:46,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:18:46,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:18:46,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:18:46,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:18:46,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:18:46,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:18:46,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:18:46,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:18:46,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:18:46,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:18:46,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:18:46,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:18:46,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:18:46,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:18:46,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:18:46,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:18:46,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:18:46,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:18:46,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:18:46,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:18:46,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:18:46,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:18:46,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:18:46,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:18:46,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:18:46,905 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:18:46,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:18:46,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:18:46,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:18:46,908 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:18:46,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:18:46,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:18:46,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:18:46,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:18:46,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:18:46,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:18:46,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:18:46,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:18:46,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:18:46,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:18:46,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:18:46,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:18:46,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:18:46,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:18:46,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:18:46,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:18:46,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:46,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:18:46,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:18:46,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:18:46,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:18:46,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:18:46,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:18:46,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:18:46,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:18:47,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:18:47,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:18:47,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:18:47,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:18:47,396 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:18:47,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-09-25 12:18:47,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d408e2f82/05cf80a0690b45d1b79f0ad6ccd61311/FLAGc228e2565 [2020-09-25 12:18:48,117 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:18:48,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/list_search-1.i [2020-09-25 12:18:48,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d408e2f82/05cf80a0690b45d1b79f0ad6ccd61311/FLAGc228e2565 [2020-09-25 12:18:48,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d408e2f82/05cf80a0690b45d1b79f0ad6ccd61311 [2020-09-25 12:18:48,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:18:48,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:18:48,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:48,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:18:48,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:18:48,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:48" (1/1) ... [2020-09-25 12:18:48,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d608ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:48, skipping insertion in model container [2020-09-25 12:18:48,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:48" (1/1) ... [2020-09-25 12:18:48,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:18:48,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:18:49,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:49,018 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:18:49,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:49,120 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:18:49,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49 WrapperNode [2020-09-25 12:18:49,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:49,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:18:49,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:18:49,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:18:49,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... [2020-09-25 12:18:49,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... [2020-09-25 12:18:49,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... [2020-09-25 12:18:49,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... [2020-09-25 12:18:49,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... [2020-09-25 12:18:49,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... [2020-09-25 12:18:49,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... [2020-09-25 12:18:49,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:18:49,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:18:49,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:18:49,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:18:49,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:18:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:18:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 12:18:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 12:18:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 12:18:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-09-25 12:18:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-09-25 12:18:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-09-25 12:18:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-09-25 12:18:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-09-25 12:18:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:18:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:18:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 12:18:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 12:18:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 12:18:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 12:18:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 12:18:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 12:18:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 12:18:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 12:18:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 12:18:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 12:18:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 12:18:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 12:18:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 12:18:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 12:18:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 12:18:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 12:18:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 12:18:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 12:18:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 12:18:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-09-25 12:18:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-09-25 12:18:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-09-25 12:18:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 12:18:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 12:18:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 12:18:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 12:18:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 12:18:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 12:18:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 12:18:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 12:18:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 12:18:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 12:18:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 12:18:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 12:18:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 12:18:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 12:18:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 12:18:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 12:18:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 12:18:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 12:18:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 12:18:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 12:18:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 12:18:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 12:18:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 12:18:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 12:18:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 12:18:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 12:18:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 12:18:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 12:18:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 12:18:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 12:18:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 12:18:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 12:18:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 12:18:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 12:18:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:18:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 12:18:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 12:18:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:18:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 12:18:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 12:18:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 12:18:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 12:18:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 12:18:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 12:18:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 12:18:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 12:18:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 12:18:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 12:18:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 12:18:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 12:18:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 12:18:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 12:18:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 12:18:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 12:18:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 12:18:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 12:18:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 12:18:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 12:18:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 12:18:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 12:18:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 12:18:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 12:18:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 12:18:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 12:18:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 12:18:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 12:18:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 12:18:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 12:18:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 12:18:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 12:18:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 12:18:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 12:18:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 12:18:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 12:18:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 12:18:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 12:18:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 12:18:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 12:18:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 12:18:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 12:18:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 12:18:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 12:18:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 12:18:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 12:18:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 12:18:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 12:18:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-09-25 12:18:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:18:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:18:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-09-25 12:18:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:18:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:18:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:18:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:18:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:18:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:18:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:18:49,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:18:49,866 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 12:18:49,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:49 BoogieIcfgContainer [2020-09-25 12:18:49,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:18:49,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:18:49,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:18:49,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:18:49,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:18:48" (1/3) ... [2020-09-25 12:18:49,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c3bd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:49, skipping insertion in model container [2020-09-25 12:18:49,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:49" (2/3) ... [2020-09-25 12:18:49,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c3bd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:49, skipping insertion in model container [2020-09-25 12:18:49,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:49" (3/3) ... [2020-09-25 12:18:49,881 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-09-25 12:18:49,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:18:49,904 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:18:49,927 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:18:49,960 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:18:49,961 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:18:49,961 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:18:49,961 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:18:49,961 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:18:49,961 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:18:49,961 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:18:49,962 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:18:49,988 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-09-25 12:18:50,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 12:18:50,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:50,002 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 12:18:50,003 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:50,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:50,011 INFO L82 PathProgramCache]: Analyzing trace with hash 42223880, now seen corresponding path program 1 times [2020-09-25 12:18:50,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:50,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282053156] [2020-09-25 12:18:50,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:50,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:50,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:50,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:51,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:18:55,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:18:55,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 12:18:55,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 12:18:55,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:18:55,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:18:55,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:18:55,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:55,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:55,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:55,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:55,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:18:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:18:55,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 12:18:55,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:55,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:55,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:55,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 12:18:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:18:55,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:55,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 12:18:55,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:55,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:18:55,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:18:55,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:55,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 12:18:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:18:55,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 12:18:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:18:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:55,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:55,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 12:18:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:18:55,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:18:55,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:18:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:55,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:55,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 12:18:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:55,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:55,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:55,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 12:18:55,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:18:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:18:55,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:55,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 12:18:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:55,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:18:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:18:55,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282053156] [2020-09-25 12:18:55,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:18:55,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:18:55,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755877743] [2020-09-25 12:18:55,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:18:55,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:55,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:18:55,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:18:55,988 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 9 states. [2020-09-25 12:18:56,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:56,772 INFO L93 Difference]: Finished difference Result 187 states and 225 transitions. [2020-09-25 12:18:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:18:56,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-25 12:18:56,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:56,789 INFO L225 Difference]: With dead ends: 187 [2020-09-25 12:18:56,790 INFO L226 Difference]: Without dead ends: 92 [2020-09-25 12:18:56,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:18:56,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-25 12:18:56,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 73. [2020-09-25 12:18:56,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 12:18:56,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2020-09-25 12:18:56,894 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 82 [2020-09-25 12:18:56,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:56,894 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2020-09-25 12:18:56,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:18:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2020-09-25 12:18:56,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 12:18:56,899 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:56,900 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 12:18:56,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:18:56,900 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:56,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1050718625, now seen corresponding path program 1 times [2020-09-25 12:18:56,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:56,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98498572] [2020-09-25 12:18:56,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:57,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:57,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:57,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 12:18:57,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:18:57,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 928 [2020-09-25 12:18:57,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:57,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:57,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:18:57,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 12:18:57,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:18:57,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:57,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:57,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:57,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:57,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:18:57,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:57,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:18:57,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:57,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:57,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:18:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:57,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:57,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:18:57,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:18:57,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:57,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:57,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 12:18:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:58,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:58,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:58,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:18:58,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:58,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:18:58,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:58,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:58,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:58,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:58,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:58,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:18:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:58,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:58,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:58,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:18:58,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 12:18:58,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:58,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:58,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:58,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:58,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:58,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:18:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:58,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:58,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:58,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:18:58,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:58,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 12:18:58,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:58,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:58,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:58,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 12:18:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:58,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:58,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:58,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:58,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:18:58,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:18:58,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 12:18:58,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:58,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 12:18:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:18:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:58,312 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 12:18:58,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98498572] [2020-09-25 12:18:58,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:58,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:18:58,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889765523] [2020-09-25 12:18:58,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:18:58,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:58,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:18:58,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:18:58,316 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 10 states. [2020-09-25 12:18:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:59,000 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-09-25 12:18:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:18:59,002 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-25 12:18:59,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:59,014 INFO L225 Difference]: With dead ends: 113 [2020-09-25 12:18:59,014 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 12:18:59,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:18:59,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 12:18:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2020-09-25 12:18:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 12:18:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-09-25 12:18:59,039 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 89 [2020-09-25 12:18:59,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:59,043 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-09-25 12:18:59,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:18:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-09-25 12:18:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 12:18:59,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:59,046 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 12:18:59,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:18:59,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:59,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:59,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1346991358, now seen corresponding path program 1 times [2020-09-25 12:18:59,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:59,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272150462] [2020-09-25 12:18:59,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:59,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:00,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:00,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:19:00,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:00,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1130 [2020-09-25 12:19:00,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:00,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:00,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:19:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-25 12:19:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:19:00,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:00,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:00,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:00,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:19:00,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:19:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:00,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:00,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:19:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:00,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:00,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:00,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:00,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:00,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:19:00,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:00,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:00,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 12:19:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:00,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:00,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:00,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:00,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:00,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:19:00,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:00,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:00,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:19:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:00,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:00,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:00,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 12:19:00,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:00,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:00,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:00,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:00,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:00,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:00,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:00,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:00,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:00,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:00,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 12:19:00,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:00,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:19:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 12:19:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:00,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:00,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:00,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:19:00,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:00,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 12:19:00,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:00,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:19:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:19:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:19:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:00,907 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 12:19:00,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272150462] [2020-09-25 12:19:00,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:19:00,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 12:19:00,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160877337] [2020-09-25 12:19:00,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:19:00,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:00,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:19:00,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:19:00,912 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 13 states. [2020-09-25 12:19:01,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:01,679 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2020-09-25 12:19:01,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:19:01,679 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2020-09-25 12:19:01,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:01,681 INFO L225 Difference]: With dead ends: 95 [2020-09-25 12:19:01,682 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 12:19:01,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2020-09-25 12:19:01,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 12:19:01,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-09-25 12:19:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 12:19:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2020-09-25 12:19:01,703 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 91 [2020-09-25 12:19:01,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:01,703 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2020-09-25 12:19:01,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 12:19:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2020-09-25 12:19:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 12:19:01,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:01,710 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 12:19:01,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:19:01,711 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:01,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:01,711 INFO L82 PathProgramCache]: Analyzing trace with hash 2140447576, now seen corresponding path program 1 times [2020-09-25 12:19:01,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:01,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753908799] [2020-09-25 12:19:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:01,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:01,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:03,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:04,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:06,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:06,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 12:19:06,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:19:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 12:19:06,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:06,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:19:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 12:19:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:19:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:06,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:06,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:06,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:06,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:19:06,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:19:06,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:06,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:06,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:19:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:06,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:06,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:06,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:19:06,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:06,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:06,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:06,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 12:19:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:06,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:06,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:06,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:06,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:06,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:19:06,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:06,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:06,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:06,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:06,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:06,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:19:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:19:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:06,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:07,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:07,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:07,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:07,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 12:19:07,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:07,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:07,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:19:07,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:07,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:19:07,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 33 [2020-09-25 12:19:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:07,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:07,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 12:19:07,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:07,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 12:19:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:07,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 12:19:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:07,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:07,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:07,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:07,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:19:07,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:19:07,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 12:19:07,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:07,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 12:19:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 12:19:07,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:07,629 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 12:19:07,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753908799] [2020-09-25 12:19:07,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:07,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 12:19:07,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504109420] [2020-09-25 12:19:07,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 12:19:07,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:07,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 12:19:07,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:19:07,642 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 16 states. [2020-09-25 12:19:09,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:09,119 INFO L93 Difference]: Finished difference Result 134 states and 142 transitions. [2020-09-25 12:19:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 12:19:09,119 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 99 [2020-09-25 12:19:09,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:09,121 INFO L225 Difference]: With dead ends: 134 [2020-09-25 12:19:09,121 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 12:19:09,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=252, Invalid=1230, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 12:19:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 12:19:09,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 87. [2020-09-25 12:19:09,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 12:19:09,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-25 12:19:09,134 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 99 [2020-09-25 12:19:09,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:09,135 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-25 12:19:09,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 12:19:09,135 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-25 12:19:09,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 12:19:09,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:09,137 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 12:19:09,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:19:09,137 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:09,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:09,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1242921541, now seen corresponding path program 1 times [2020-09-25 12:19:09,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:09,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843856898] [2020-09-25 12:19:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:09,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:10,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:14,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:14,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 12:19:14,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:19:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 12:19:14,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:14,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 12:19:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 12:19:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 12:19:14,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:14,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:14,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:14,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:19:14,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:19:14,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:14,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:14,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:14,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:19:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:14,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:14,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:14,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:19:14,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:14,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:14,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 12:19:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:14,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:14,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:14,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:14,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:14,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:19:14,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:14,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:14,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:14,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:19:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:14,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:14,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:14,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:14,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:14,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 12:19:14,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:14,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:19:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:19:14,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:14,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:14,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:14,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:14,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:14,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 12:19:14,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:14,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:19:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 12:19:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:14,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 12:19:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:15,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:15,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:15,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 12:19:15,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 12:19:15,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:15,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:19:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:19:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:19:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:15,411 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 12:19:15,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843856898] [2020-09-25 12:19:15,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:15,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 12:19:15,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281672951] [2020-09-25 12:19:15,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 12:19:15,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:15,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 12:19:15,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:19:15,416 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 24 states. [2020-09-25 12:19:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:17,586 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-09-25 12:19:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 12:19:17,587 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 101 [2020-09-25 12:19:17,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:17,589 INFO L225 Difference]: With dead ends: 119 [2020-09-25 12:19:17,589 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 12:19:17,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=303, Invalid=1953, Unknown=0, NotChecked=0, Total=2256 [2020-09-25 12:19:17,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 12:19:17,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 90. [2020-09-25 12:19:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 12:19:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2020-09-25 12:19:17,602 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 101 [2020-09-25 12:19:17,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:17,603 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2020-09-25 12:19:17,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 12:19:17,603 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2020-09-25 12:19:17,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-25 12:19:17,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:17,605 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 12:19:17,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:19:17,605 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:17,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:17,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1667050223, now seen corresponding path program 2 times [2020-09-25 12:19:17,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:17,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313852748] [2020-09-25 12:19:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:17,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:18,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:20,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:22,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:22,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 12:19:22,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:19:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 12:19:22,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:22,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 12:19:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 12:19:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 12:19:22,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:22,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:22,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:22,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:22,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:19:22,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:22,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:19:22,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:22,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:22,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:22,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:22,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:22,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:22,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:19:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:22,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:22,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:22,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:22,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:22,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:19:22,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:22,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:22,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:22,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:22,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:22,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 12:19:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:22,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:22,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:22,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:22,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:19:22,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:22,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:22,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 12:19:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:22,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:23,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:23,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:23,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:23,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 12:19:23,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:23,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:19:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:23,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 12:19:23,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:23,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 12:19:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:23,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:23,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:23,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 12:19:23,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 12:19:23,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:23,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:19:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:19:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 12:19:23,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:19:23,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 12:19:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:24,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:24,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 12:19:24,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:19:24,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 12:19:24,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:24,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:19:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 12:19:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:19:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:24,968 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 12:19:24,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313852748] [2020-09-25 12:19:24,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:19:24,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 12:19:24,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024780509] [2020-09-25 12:19:24,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 12:19:24,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:19:24,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 12:19:24,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:19:24,971 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand 24 states. [2020-09-25 12:19:25,975 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-09-25 12:19:26,831 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-09-25 12:19:27,085 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-09-25 12:19:27,417 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-09-25 12:19:27,610 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-09-25 12:19:27,795 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-09-25 12:19:27,982 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-09-25 12:19:28,176 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-09-25 12:19:28,439 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2020-09-25 12:19:28,813 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-09-25 12:19:29,042 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2020-09-25 12:19:29,331 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-09-25 12:19:29,564 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-09-25 12:19:29,767 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-09-25 12:19:29,983 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-09-25 12:19:30,367 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-09-25 12:19:30,684 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2020-09-25 12:19:30,916 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2020-09-25 12:19:31,165 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2020-09-25 12:19:31,611 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-09-25 12:19:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:19:31,711 INFO L93 Difference]: Finished difference Result 163 states and 171 transitions. [2020-09-25 12:19:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 12:19:31,712 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2020-09-25 12:19:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:19:31,713 INFO L225 Difference]: With dead ends: 163 [2020-09-25 12:19:31,714 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 12:19:31,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=458, Invalid=2848, Unknown=0, NotChecked=0, Total=3306 [2020-09-25 12:19:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 12:19:31,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 116. [2020-09-25 12:19:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-25 12:19:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2020-09-25 12:19:31,744 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 109 [2020-09-25 12:19:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:19:31,745 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 120 transitions. [2020-09-25 12:19:31,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 12:19:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 120 transitions. [2020-09-25 12:19:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 12:19:31,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:19:31,750 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 12:19:31,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:19:31,751 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:19:31,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:19:31,754 INFO L82 PathProgramCache]: Analyzing trace with hash -936170188, now seen corresponding path program 2 times [2020-09-25 12:19:31,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:19:31,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680535410] [2020-09-25 12:19:31,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:19:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:31,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:34,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:34,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 12:19:34,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:34,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3161 [2020-09-25 12:19:34,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:34,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 12:19:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 12:19:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 12:19:34,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:35,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:19:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:19:35,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:19:35,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:35,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:35,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:35,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:35,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:19:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:19:35,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:19:35,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:19:35,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:19:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:19:35,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:19:35,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:19:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:19:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:19:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:19:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:19:35,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 12:19:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:19:35,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking...