/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:13:02,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:13:02,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:13:02,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:13:02,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:13:02,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:13:02,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:13:02,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:13:02,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:13:02,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:13:02,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:13:02,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:13:02,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:13:02,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:13:02,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:13:02,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:13:02,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:13:02,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:13:02,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:13:02,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:13:02,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:13:02,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:13:02,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:13:02,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:13:02,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:13:02,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:13:02,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:13:02,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:13:02,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:13:02,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:13:02,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:13:02,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:13:02,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:13:02,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:13:02,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:13:02,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:13:02,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:13:02,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:13:02,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:13:02,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:13:02,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:13:02,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:13:02,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:13:02,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:13:02,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:13:02,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:13:02,454 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:13:02,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:13:02,454 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:13:02,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:13:02,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:13:02,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:13:02,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:13:02,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:13:02,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:13:02,456 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:13:02,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:13:02,456 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:13:02,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:13:02,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:13:02,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:13:02,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:13:02,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:13:02,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:13:02,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:13:02,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:13:02,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:13:02,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:13:02,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:13:02,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:13:02,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:13:02,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:13:02,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:13:02,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:13:02,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:13:02,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:13:02,939 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:13:02,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 11:13:03,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3f7d41ed/a769d85db2fe42c5ab7a8e47670bdf5a/FLAG9b19b26ca [2020-09-25 11:13:03,735 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:13:03,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 11:13:03,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3f7d41ed/a769d85db2fe42c5ab7a8e47670bdf5a/FLAG9b19b26ca [2020-09-25 11:13:03,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3f7d41ed/a769d85db2fe42c5ab7a8e47670bdf5a [2020-09-25 11:13:03,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:13:03,952 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:13:03,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:13:03,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:13:03,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:13:03,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:13:03" (1/1) ... [2020-09-25 11:13:03,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794240ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:03, skipping insertion in model container [2020-09-25 11:13:03,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:13:03" (1/1) ... [2020-09-25 11:13:03,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:13:04,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:13:04,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:13:04,524 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:13:04,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:13:04,647 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:13:04,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04 WrapperNode [2020-09-25 11:13:04,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:13:04,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:13:04,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:13:04,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:13:04,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... [2020-09-25 11:13:04,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... [2020-09-25 11:13:04,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... [2020-09-25 11:13:04,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... [2020-09-25 11:13:04,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... [2020-09-25 11:13:04,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... [2020-09-25 11:13:04,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... [2020-09-25 11:13:04,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:13:04,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:13:04,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:13:04,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:13:04,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:13:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:13:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:13:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 11:13:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 11:13:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 11:13:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-25 11:13:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2020-09-25 11:13:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-25 11:13:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2020-09-25 11:13:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2020-09-25 11:13:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:13:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:13:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:13:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 11:13:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 11:13:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 11:13:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 11:13:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 11:13:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 11:13:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 11:13:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 11:13:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 11:13:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 11:13:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 11:13:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 11:13:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 11:13:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 11:13:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 11:13:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 11:13:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 11:13:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 11:13:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 11:13:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 11:13:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 11:13:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 11:13:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 11:13:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 11:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 11:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 11:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 11:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 11:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 11:13:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 11:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 11:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 11:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 11:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 11:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 11:13:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 11:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 11:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 11:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 11:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 11:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 11:13:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 11:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 11:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 11:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 11:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 11:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 11:13:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 11:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 11:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 11:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 11:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 11:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:13:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 11:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 11:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 11:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 11:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 11:13:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 11:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 11:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 11:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 11:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 11:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 11:13:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:13:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 11:13:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 11:13:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 11:13:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 11:13:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 11:13:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 11:13:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 11:13:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 11:13:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 11:13:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 11:13:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 11:13:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 11:13:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 11:13:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 11:13:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 11:13:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 11:13:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 11:13:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 11:13:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 11:13:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 11:13:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 11:13:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 11:13:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 11:13:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 11:13:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 11:13:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 11:13:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 11:13:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 11:13:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 11:13:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 11:13:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 11:13:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 11:13:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 11:13:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 11:13:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 11:13:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 11:13:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 11:13:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 11:13:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 11:13:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 11:13:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-25 11:13:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:13:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:13:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2020-09-25 11:13:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:13:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-25 11:13:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:13:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2020-09-25 11:13:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2020-09-25 11:13:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:13:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:13:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 11:13:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:13:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:13:05,283 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 11:13:05,581 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:13:05,582 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 11:13:05,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:13:05 BoogieIcfgContainer [2020-09-25 11:13:05,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:13:05,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:13:05,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:13:05,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:13:05,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:13:03" (1/3) ... [2020-09-25 11:13:05,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b676b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:13:05, skipping insertion in model container [2020-09-25 11:13:05,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:13:04" (2/3) ... [2020-09-25 11:13:05,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b676b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:13:05, skipping insertion in model container [2020-09-25 11:13:05,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:13:05" (3/3) ... [2020-09-25 11:13:05,598 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2020-09-25 11:13:05,610 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:13:05,622 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:13:05,645 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:13:05,679 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:13:05,680 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:13:05,680 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:13:05,680 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:13:05,680 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:13:05,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:13:05,680 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:13:05,681 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:13:05,709 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-09-25 11:13:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 11:13:05,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:05,723 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:05,723 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:05,732 INFO L82 PathProgramCache]: Analyzing trace with hash 422432984, now seen corresponding path program 1 times [2020-09-25 11:13:05,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:05,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618553024] [2020-09-25 11:13:05,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:05,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:05,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 11:13:06,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:13:06,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-25 11:13:06,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 11:13:06,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:13:06,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:06,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:13:06,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:13:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:13:06,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:13:06,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:13:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:13:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:13:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 11:13:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 11:13:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:13:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:13:06,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:06,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:13:06,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:13:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 11:13:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:13:06,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:13:06,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 11:13:06,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 11:13:06,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618553024] [2020-09-25 11:13:06,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:06,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 11:13:06,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708425433] [2020-09-25 11:13:06,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:13:06,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:06,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:13:06,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:13:06,592 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 4 states. [2020-09-25 11:13:06,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:06,993 INFO L93 Difference]: Finished difference Result 289 states and 337 transitions. [2020-09-25 11:13:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 11:13:06,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-09-25 11:13:06,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:07,011 INFO L225 Difference]: With dead ends: 289 [2020-09-25 11:13:07,011 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 11:13:07,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:13:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 11:13:07,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2020-09-25 11:13:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 11:13:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-25 11:13:07,084 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 54 [2020-09-25 11:13:07,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:07,084 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-25 11:13:07,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:13:07,084 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-25 11:13:07,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 11:13:07,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:07,089 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:07,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:13:07,090 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:07,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:07,090 INFO L82 PathProgramCache]: Analyzing trace with hash 333013349, now seen corresponding path program 1 times [2020-09-25 11:13:07,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:07,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961589004] [2020-09-25 11:13:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:07,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:12,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 11:13:12,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:13:12,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 11:13:12,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:12,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:13:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 11:13:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 11:13:12,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:12,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:12,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:12,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:12,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:12,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:13:12,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:12,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:12,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:13:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:12,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:12,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:13:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 11:13:12,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:12,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:13:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:13:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:12,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 11:13:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:12,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:12,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:13:12,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:12,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 11:13:12,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:12,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:12,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:13:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:12,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 11:13:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:12,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:12,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:12,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:13:12,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 11:13:12,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:12,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:13:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:13:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:13:12,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:12,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 11:13:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:12,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:12,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:13:12,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:12,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:13:12,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:12,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:12,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:13,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 11:13:13,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:13,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:13:13,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961589004] [2020-09-25 11:13:13,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:13,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 11:13:13,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315770030] [2020-09-25 11:13:13,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 11:13:13,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:13,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 11:13:13,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-09-25 11:13:13,032 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 18 states. [2020-09-25 11:13:14,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:14,638 INFO L93 Difference]: Finished difference Result 289 states and 328 transitions. [2020-09-25 11:13:14,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 11:13:14,638 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 69 [2020-09-25 11:13:14,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:14,642 INFO L225 Difference]: With dead ends: 289 [2020-09-25 11:13:14,642 INFO L226 Difference]: Without dead ends: 206 [2020-09-25 11:13:14,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=912, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 11:13:14,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-09-25 11:13:14,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 152. [2020-09-25 11:13:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-25 11:13:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 171 transitions. [2020-09-25 11:13:14,718 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 171 transitions. Word has length 69 [2020-09-25 11:13:14,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:14,719 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 171 transitions. [2020-09-25 11:13:14,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 11:13:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 171 transitions. [2020-09-25 11:13:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 11:13:14,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:14,725 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:14,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:13:14,726 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:14,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:14,731 INFO L82 PathProgramCache]: Analyzing trace with hash -208344862, now seen corresponding path program 1 times [2020-09-25 11:13:14,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:14,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486420397] [2020-09-25 11:13:14,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:14,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:14,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:14,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:16,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:18,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:19,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:19,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:13:19,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:13:19,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 11:13:19,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:19,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:13:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 11:13:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:13:19,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:13:19,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:19,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:19,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:19,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:19,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:19,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:13:19,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:19,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:19,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:19,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:19,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:13:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:19,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:19,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:19,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:19,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:19,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:19,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:13:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 11:13:19,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:19,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:13:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:13:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:13:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-25 11:13:20,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 11:13:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:20,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:20,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:20,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:13:20,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:20,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:13:20,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:20,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:13:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:13:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:13:20,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 11:13:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:20,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:20,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:13:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:13:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:13:20,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:20,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 11:13:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:20,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:20,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:20,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:13:20,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:20,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:13:20,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:20,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:20,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:20,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 11:13:20,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:20,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:13:20,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486420397] [2020-09-25 11:13:20,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:20,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 11:13:20,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784760602] [2020-09-25 11:13:20,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 11:13:20,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:20,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 11:13:20,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2020-09-25 11:13:20,277 INFO L87 Difference]: Start difference. First operand 152 states and 171 transitions. Second operand 18 states. [2020-09-25 11:13:20,685 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-09-25 11:13:20,822 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-09-25 11:13:21,993 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-09-25 11:13:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:22,459 INFO L93 Difference]: Finished difference Result 380 states and 436 transitions. [2020-09-25 11:13:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 11:13:22,459 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 71 [2020-09-25 11:13:22,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:22,464 INFO L225 Difference]: With dead ends: 380 [2020-09-25 11:13:22,464 INFO L226 Difference]: Without dead ends: 234 [2020-09-25 11:13:22,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=267, Invalid=1065, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 11:13:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-09-25 11:13:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 183. [2020-09-25 11:13:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 11:13:22,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 204 transitions. [2020-09-25 11:13:22,486 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 204 transitions. Word has length 71 [2020-09-25 11:13:22,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:22,487 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 204 transitions. [2020-09-25 11:13:22,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 11:13:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 204 transitions. [2020-09-25 11:13:22,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 11:13:22,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:22,490 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:22,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:13:22,491 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:22,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:22,491 INFO L82 PathProgramCache]: Analyzing trace with hash -472966004, now seen corresponding path program 1 times [2020-09-25 11:13:22,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:22,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572524842] [2020-09-25 11:13:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:22,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:22,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:22,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:22,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:22,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:22,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:23,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:23,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:23,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:23,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:23,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:23,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:24,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:24,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:24,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:24,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:25,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:25,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:25,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:26,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:26,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:26,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:26,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:26,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:27,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:27,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:27,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 11:13:27,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-09-25 11:13:27,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 11:13:27,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:27,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:27,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:13:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 11:13:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 11:13:27,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:13:27,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:27,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:13:27,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:27,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:27,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:27,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:27,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:27,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:13:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:27,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:27,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:27,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:27,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:28,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:28,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:13:28,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:13:28,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-09-25 11:13:28,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:28,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:13:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 11:13:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:28,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 11:13:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:28,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:28,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:28,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:13:28,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:28,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 11:13:28,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:28,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:13:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:28,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 11:13:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:28,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:28,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:28,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:28,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:28,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:28,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 11:13:28,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:28,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:28,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:13:28,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:13:28,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:13:28,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:28,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 11:13:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:28,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:28,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:13:28,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:28,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:13:28,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:28,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 11:13:28,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:28,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 11:13:28,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572524842] [2020-09-25 11:13:28,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:28,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 11:13:28,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114978818] [2020-09-25 11:13:28,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 11:13:28,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:28,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 11:13:28,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-09-25 11:13:28,654 INFO L87 Difference]: Start difference. First operand 183 states and 204 transitions. Second operand 15 states. [2020-09-25 11:13:30,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:30,444 INFO L93 Difference]: Finished difference Result 381 states and 439 transitions. [2020-09-25 11:13:30,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 11:13:30,445 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-09-25 11:13:30,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:30,452 INFO L225 Difference]: With dead ends: 381 [2020-09-25 11:13:30,452 INFO L226 Difference]: Without dead ends: 272 [2020-09-25 11:13:30,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=363, Invalid=1043, Unknown=0, NotChecked=0, Total=1406 [2020-09-25 11:13:30,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-09-25 11:13:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 183. [2020-09-25 11:13:30,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 11:13:30,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 204 transitions. [2020-09-25 11:13:30,482 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 204 transitions. Word has length 79 [2020-09-25 11:13:30,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:30,483 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 204 transitions. [2020-09-25 11:13:30,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 11:13:30,483 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 204 transitions. [2020-09-25 11:13:30,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 11:13:30,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:30,486 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:30,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:13:30,486 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:30,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1107353865, now seen corresponding path program 2 times [2020-09-25 11:13:30,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:30,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248019111] [2020-09-25 11:13:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:30,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:30,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:30,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:31,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:31,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:31,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:35,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:35,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 11:13:35,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:13:35,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 11:13:35,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:35,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 11:13:35,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 11:13:35,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 11:13:35,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:35,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:35,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:35,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:35,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:35,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:13:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:35,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:35,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:35,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 11:13:35,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:35,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 11:13:35,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:35,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:35,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:13:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 11:13:35,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:35,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 11:13:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:35,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:35,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:35,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:35,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:13:35,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 11:13:35,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:35,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:35,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:35,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:13:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:35,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 11:13:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:35,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:35,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:35,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:35,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:35,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 11:13:35,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:35,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:13:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:13:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:13:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 11:13:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:36,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:36,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:36,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:13:36,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:36,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:13:36,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:36,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 11:13:36,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:36,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:13:36,024 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 11:13:36,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248019111] [2020-09-25 11:13:36,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:36,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 11:13:36,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662071860] [2020-09-25 11:13:36,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 11:13:36,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:36,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 11:13:36,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 11:13:36,026 INFO L87 Difference]: Start difference. First operand 183 states and 204 transitions. Second operand 15 states. [2020-09-25 11:13:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:38,346 INFO L93 Difference]: Finished difference Result 354 states and 399 transitions. [2020-09-25 11:13:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 11:13:38,347 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 81 [2020-09-25 11:13:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:38,350 INFO L225 Difference]: With dead ends: 354 [2020-09-25 11:13:38,350 INFO L226 Difference]: Without dead ends: 241 [2020-09-25 11:13:38,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=288, Invalid=1044, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 11:13:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-09-25 11:13:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 154. [2020-09-25 11:13:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 11:13:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 167 transitions. [2020-09-25 11:13:38,363 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 167 transitions. Word has length 81 [2020-09-25 11:13:38,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:38,363 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 167 transitions. [2020-09-25 11:13:38,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 11:13:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 167 transitions. [2020-09-25 11:13:38,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 11:13:38,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:38,365 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:38,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:13:38,366 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:38,366 INFO L82 PathProgramCache]: Analyzing trace with hash 27846035, now seen corresponding path program 1 times [2020-09-25 11:13:38,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:38,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029608331] [2020-09-25 11:13:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:38,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:38,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:39,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:39,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:43,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 11:13:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:13:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 11:13:43,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:43,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:13:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 11:13:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 11:13:43,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:43,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:43,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:43,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:43,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:43,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:13:43,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:43,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 11:13:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:43,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:43,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:13:43,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:43,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:13:43,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:43,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:43,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:43,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:43,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 11:13:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:43,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:43,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:43,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:43,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 11:13:43,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 11:13:43,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:43,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:13:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 11:13:43,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:13:43,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 11:13:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:43,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:43,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:43,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:13:43,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:43,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:13:43,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:43,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:13:43,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:13:43,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 11:13:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:43,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:43,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:43,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:13:43,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:13:43,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:43,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:13:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:13:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:13:43,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 11:13:43,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029608331] [2020-09-25 11:13:43,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:13:43,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 11:13:43,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661251271] [2020-09-25 11:13:43,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:13:43,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:43,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:13:43,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:13:43,850 INFO L87 Difference]: Start difference. First operand 154 states and 167 transitions. Second operand 12 states. [2020-09-25 11:13:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:44,731 INFO L93 Difference]: Finished difference Result 197 states and 216 transitions. [2020-09-25 11:13:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 11:13:44,732 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-09-25 11:13:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:44,735 INFO L225 Difference]: With dead ends: 197 [2020-09-25 11:13:44,735 INFO L226 Difference]: Without dead ends: 191 [2020-09-25 11:13:44,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:13:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-25 11:13:44,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 167. [2020-09-25 11:13:44,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 11:13:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 184 transitions. [2020-09-25 11:13:44,747 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 184 transitions. Word has length 82 [2020-09-25 11:13:44,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:44,747 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 184 transitions. [2020-09-25 11:13:44,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:13:44,747 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 184 transitions. [2020-09-25 11:13:44,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 11:13:44,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:44,749 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:44,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:13:44,749 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:44,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:44,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1804595944, now seen corresponding path program 1 times [2020-09-25 11:13:44,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:44,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242200913] [2020-09-25 11:13:44,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:44,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:44,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:46,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking...