/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/forester-heap/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:12:34,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:12:34,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:12:34,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:12:34,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:12:34,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:12:34,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:12:34,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:12:34,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:12:34,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:12:34,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:12:34,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:12:34,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:12:34,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:12:34,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:12:34,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:12:34,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:12:34,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:12:34,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:12:34,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:12:34,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:12:34,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:12:34,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:12:34,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:12:34,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:12:34,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:12:34,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:12:34,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:12:34,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:12:34,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:12:34,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:12:34,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:12:34,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:12:34,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:12:34,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:12:34,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:12:34,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:12:34,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:12:34,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:12:34,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:12:34,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:12:34,097 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 11:12:34,124 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:12:34,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:12:34,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:12:34,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:12:34,127 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:12:34,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:12:34,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:12:34,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:12:34,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:12:34,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:12:34,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:12:34,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:12:34,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:12:34,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:12:34,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:12:34,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:12:34,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:12:34,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:12:34,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:12:34,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:12:34,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:12:34,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:12:34,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:12:34,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:12:34,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:12:34,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:12:34,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:12:34,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:12:34,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:12:34,132 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 11:12:34,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:12:34,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:12:34,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:12:34,630 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:12:34,631 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:12:34,632 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 11:12:34,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3164eaef6/bf89e2de258346e8b1fcec8bf6c6b9e9/FLAGa2b8d3df9 [2020-09-25 11:12:35,377 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:12:35,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-25 11:12:35,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3164eaef6/bf89e2de258346e8b1fcec8bf6c6b9e9/FLAGa2b8d3df9 [2020-09-25 11:12:35,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3164eaef6/bf89e2de258346e8b1fcec8bf6c6b9e9 [2020-09-25 11:12:35,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:12:35,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:12:35,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:12:35,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:12:35,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:12:35,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:12:35" (1/1) ... [2020-09-25 11:12:35,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24807900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:35, skipping insertion in model container [2020-09-25 11:12:35,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:12:35" (1/1) ... [2020-09-25 11:12:35,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:12:35,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:12:36,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:12:36,251 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:12:36,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:12:36,361 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:12:36,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36 WrapperNode [2020-09-25 11:12:36,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:12:36,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:12:36,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:12:36,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:12:36,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... [2020-09-25 11:12:36,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... [2020-09-25 11:12:36,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... [2020-09-25 11:12:36,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... [2020-09-25 11:12:36,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... [2020-09-25 11:12:36,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... [2020-09-25 11:12:36,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... [2020-09-25 11:12:36,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:12:36,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:12:36,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:12:36,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:12:36,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:12:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:12:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:12:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:12:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 11:12:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 11:12:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 11:12:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 11:12:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 11:12:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 11:12:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 11:12:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 11:12:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 11:12:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 11:12:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 11:12:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 11:12:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 11:12:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 11:12:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 11:12:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 11:12:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 11:12:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 11:12:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 11:12:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 11:12:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 11:12:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 11:12:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 11:12:36,536 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 11:12:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 11:12:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 11:12:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 11:12:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 11:12:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 11:12:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 11:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 11:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 11:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 11:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 11:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 11:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 11:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 11:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 11:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 11:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 11:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 11:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 11:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 11:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 11:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 11:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 11:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 11:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 11:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 11:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 11:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 11:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 11:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 11:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 11:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 11:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 11:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 11:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 11:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 11:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 11:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 11:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 11:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 11:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 11:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 11:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 11:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 11:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 11:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 11:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 11:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 11:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 11:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 11:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 11:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 11:12:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 11:12:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 11:12:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 11:12:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 11:12:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 11:12:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 11:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 11:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 11:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 11:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 11:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 11:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 11:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 11:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 11:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 11:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 11:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 11:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 11:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 11:12:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 11:12:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 11:12:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 11:12:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 11:12:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 11:12:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 11:12:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:12:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:12:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:12:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:12:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:12:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:12:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:12:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:12:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:12:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:12:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:12:37,239 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:12:37,239 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-09-25 11:12:37,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:12:37 BoogieIcfgContainer [2020-09-25 11:12:37,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:12:37,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:12:37,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:12:37,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:12:37,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:12:35" (1/3) ... [2020-09-25 11:12:37,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64005d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:12:37, skipping insertion in model container [2020-09-25 11:12:37,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:36" (2/3) ... [2020-09-25 11:12:37,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64005d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:12:37, skipping insertion in model container [2020-09-25 11:12:37,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:12:37" (3/3) ... [2020-09-25 11:12:37,257 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-09-25 11:12:37,269 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:12:37,280 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-09-25 11:12:37,304 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-25 11:12:37,334 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:12:37,334 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:12:37,334 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:12:37,334 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:12:37,334 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:12:37,335 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:12:37,335 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:12:37,335 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:12:37,364 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-09-25 11:12:37,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 11:12:37,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:37,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:37,375 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-09-25 11:12:37,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:37,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568036329] [2020-09-25 11:12:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:37,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:37,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:38,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:38,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 11:12:38,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:12:38,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 741 [2020-09-25 11:12:38,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:38,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:12:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:12:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:12:38,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:12:38,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:38,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:38,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:38,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:38,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:12:38,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:38,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:38,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:38,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:38,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:38,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568036329] [2020-09-25 11:12:38,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:38,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:12:38,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19556255] [2020-09-25 11:12:38,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:12:38,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:12:38,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:12:38,550 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 8 states. [2020-09-25 11:12:39,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:39,103 INFO L93 Difference]: Finished difference Result 281 states and 350 transitions. [2020-09-25 11:12:39,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:12:39,106 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-09-25 11:12:39,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:39,130 INFO L225 Difference]: With dead ends: 281 [2020-09-25 11:12:39,130 INFO L226 Difference]: Without dead ends: 119 [2020-09-25 11:12:39,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-25 11:12:39,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-25 11:12:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-09-25 11:12:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 11:12:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-09-25 11:12:39,217 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 23 [2020-09-25 11:12:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:39,218 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-09-25 11:12:39,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:12:39,218 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-09-25 11:12:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 11:12:39,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:39,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:39,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:12:39,221 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:39,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-09-25 11:12:39,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:39,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139301921] [2020-09-25 11:12:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:39,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:39,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:39,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 11:12:39,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 11:12:39,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:39,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:39,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:12:39,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 11:12:39,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:12:39,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:39,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:39,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:39,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:39,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:39,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:39,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:12:39,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:39,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:39,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139301921] [2020-09-25 11:12:39,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:39,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 11:12:39,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750238229] [2020-09-25 11:12:39,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:12:39,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:39,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:12:39,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:12:39,558 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 6 states. [2020-09-25 11:12:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:39,861 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-09-25 11:12:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 11:12:39,861 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-09-25 11:12:39,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:39,864 INFO L225 Difference]: With dead ends: 146 [2020-09-25 11:12:39,864 INFO L226 Difference]: Without dead ends: 143 [2020-09-25 11:12:39,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:12:39,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-25 11:12:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2020-09-25 11:12:39,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-25 11:12:39,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-09-25 11:12:39,879 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-09-25 11:12:39,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:39,879 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-09-25 11:12:39,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:12:39,880 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-09-25 11:12:39,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 11:12:39,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:39,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:39,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:12:39,882 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:39,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:39,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-09-25 11:12:39,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:39,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460983424] [2020-09-25 11:12:39,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:39,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:39,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:40,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:40,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 11:12:40,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:12:40,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-09-25 11:12:40,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:40,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:40,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:12:40,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 11:12:40,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 11:12:40,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:40,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:40,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:40,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:40,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:12:40,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:40,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:40,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460983424] [2020-09-25 11:12:40,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:40,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 11:12:40,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830496254] [2020-09-25 11:12:40,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:12:40,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:40,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:12:40,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:12:40,704 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-09-25 11:12:41,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:41,114 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-09-25 11:12:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:12:41,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 11:12:41,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:41,117 INFO L225 Difference]: With dead ends: 162 [2020-09-25 11:12:41,118 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 11:12:41,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:12:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 11:12:41,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 112. [2020-09-25 11:12:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-25 11:12:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2020-09-25 11:12:41,154 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 38 [2020-09-25 11:12:41,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:41,155 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2020-09-25 11:12:41,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:12:41,156 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-09-25 11:12:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 11:12:41,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:41,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:41,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:12:41,159 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:41,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:41,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-09-25 11:12:41,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:41,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385184868] [2020-09-25 11:12:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:41,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:41,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:41,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 11:12:41,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:41,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 11:12:41,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:41,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:41,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 11:12:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 11:12:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:41,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:41,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:41,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:41,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:41,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:41,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 11:12:41,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:41,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:41,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:12:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:41,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385184868] [2020-09-25 11:12:41,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:41,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:12:41,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658705868] [2020-09-25 11:12:41,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:12:41,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:41,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:12:41,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:12:41,594 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand 5 states. [2020-09-25 11:12:41,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:41,830 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2020-09-25 11:12:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:12:41,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-09-25 11:12:41,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:41,833 INFO L225 Difference]: With dead ends: 117 [2020-09-25 11:12:41,833 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 11:12:41,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:12:41,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 11:12:41,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2020-09-25 11:12:41,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 11:12:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2020-09-25 11:12:41,853 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 38 [2020-09-25 11:12:41,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:41,855 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2020-09-25 11:12:41,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:12:41,855 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2020-09-25 11:12:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 11:12:41,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:41,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:41,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:12:41,858 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:41,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:41,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-09-25 11:12:41,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:41,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897829723] [2020-09-25 11:12:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:41,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:42,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:42,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 11:12:42,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:42,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 11:12:42,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:42,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:12:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 11:12:42,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:12:42,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:42,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:42,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:42,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:42,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:42,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:42,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:12:42,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:42,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:42,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897829723] [2020-09-25 11:12:42,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:42,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:12:42,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427654210] [2020-09-25 11:12:42,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:12:42,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:42,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:12:42,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:12:42,248 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand 5 states. [2020-09-25 11:12:42,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:42,470 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-09-25 11:12:42,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:12:42,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-09-25 11:12:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:42,472 INFO L225 Difference]: With dead ends: 112 [2020-09-25 11:12:42,472 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 11:12:42,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:12:42,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 11:12:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-09-25 11:12:42,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 11:12:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2020-09-25 11:12:42,480 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 42 [2020-09-25 11:12:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:42,481 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2020-09-25 11:12:42,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:12:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2020-09-25 11:12:42,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 11:12:42,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:42,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:42,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:12:42,484 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:42,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:42,484 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-09-25 11:12:42,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:42,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739251654] [2020-09-25 11:12:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:42,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:42,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:44,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:44,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 11:12:44,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:12:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1728 [2020-09-25 11:12:44,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:44,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:12:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:12:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 11:12:44,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:44,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:44,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:44,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:44,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:44,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:44,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:12:44,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:44,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:44,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:44,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:44,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:44,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739251654] [2020-09-25 11:12:44,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:44,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:12:44,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062422306] [2020-09-25 11:12:44,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:12:44,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:44,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:12:44,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:12:44,441 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand 10 states. [2020-09-25 11:12:45,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:45,098 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2020-09-25 11:12:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 11:12:45,098 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-09-25 11:12:45,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:45,101 INFO L225 Difference]: With dead ends: 154 [2020-09-25 11:12:45,103 INFO L226 Difference]: Without dead ends: 152 [2020-09-25 11:12:45,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:12:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-25 11:12:45,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 115. [2020-09-25 11:12:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-25 11:12:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2020-09-25 11:12:45,129 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 44 [2020-09-25 11:12:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:45,129 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2020-09-25 11:12:45,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:12:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2020-09-25 11:12:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 11:12:45,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:45,136 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:45,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:12:45,137 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:45,137 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-09-25 11:12:45,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:45,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928786345] [2020-09-25 11:12:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:45,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:45,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:45,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:47,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:49,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:49,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:50,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:50,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 11:12:50,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:12:50,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 11:12:50,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:50,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:50,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 11:12:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 11:12:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 11:12:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:50,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:50,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:50,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:50,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:50,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:50,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:12:50,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:50,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:50,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:50,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928786345] [2020-09-25 11:12:50,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:50,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 11:12:50,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529234394] [2020-09-25 11:12:50,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 11:12:50,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:50,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 11:12:50,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-09-25 11:12:50,712 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand 15 states. [2020-09-25 11:12:51,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:51,806 INFO L93 Difference]: Finished difference Result 174 states and 181 transitions. [2020-09-25 11:12:51,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 11:12:51,808 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-09-25 11:12:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:51,809 INFO L225 Difference]: With dead ends: 174 [2020-09-25 11:12:51,809 INFO L226 Difference]: Without dead ends: 152 [2020-09-25 11:12:51,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-09-25 11:12:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-25 11:12:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 122. [2020-09-25 11:12:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 11:12:51,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 126 transitions. [2020-09-25 11:12:51,829 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 126 transitions. Word has length 45 [2020-09-25 11:12:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:51,830 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 126 transitions. [2020-09-25 11:12:51,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 11:12:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 126 transitions. [2020-09-25 11:12:51,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 11:12:51,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:51,831 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 11:12:51,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 11:12:51,832 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:51,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:51,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1939042985, now seen corresponding path program 2 times [2020-09-25 11:12:51,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:51,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995918348] [2020-09-25 11:12:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:51,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:52,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:52,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 11:12:52,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 11:12:52,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:52,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:12:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 11:12:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 11:12:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:52,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:52,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:52,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:52,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:52,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:12:52,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:52,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:52,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:52,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:52,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:52,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 11:12:52,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995918348] [2020-09-25 11:12:52,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:52,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:12:52,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541398169] [2020-09-25 11:12:52,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:12:52,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:52,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:12:52,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:12:52,297 INFO L87 Difference]: Start difference. First operand 122 states and 126 transitions. Second operand 7 states. [2020-09-25 11:12:52,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:52,644 INFO L93 Difference]: Finished difference Result 147 states and 152 transitions. [2020-09-25 11:12:52,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:12:52,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-25 11:12:52,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:52,646 INFO L225 Difference]: With dead ends: 147 [2020-09-25 11:12:52,646 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 11:12:52,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:12:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 11:12:52,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2020-09-25 11:12:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 11:12:52,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 106 transitions. [2020-09-25 11:12:52,656 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 106 transitions. Word has length 52 [2020-09-25 11:12:52,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:52,675 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 106 transitions. [2020-09-25 11:12:52,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:12:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 106 transitions. [2020-09-25 11:12:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 11:12:52,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:52,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:12:52,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 11:12:52,680 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:52,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-09-25 11:12:52,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:52,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027076337] [2020-09-25 11:12:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:53,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:53,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:57,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:57,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 11:12:57,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:12:57,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4442 [2020-09-25 11:12:57,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:57,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 11:12:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:12:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 11:12:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:57,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:57,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:57,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:57,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:57,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:57,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:12:57,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:57,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:57,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:57,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027076337] [2020-09-25 11:12:57,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:57,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:12:57,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348671458] [2020-09-25 11:12:57,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:12:57,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:57,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:12:57,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:12:57,385 INFO L87 Difference]: Start difference. First operand 103 states and 106 transitions. Second operand 10 states. [2020-09-25 11:12:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:57,942 INFO L93 Difference]: Finished difference Result 179 states and 186 transitions. [2020-09-25 11:12:57,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:12:57,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-25 11:12:57,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:57,945 INFO L225 Difference]: With dead ends: 179 [2020-09-25 11:12:57,945 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 11:12:57,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:12:57,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 11:12:57,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 92. [2020-09-25 11:12:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 11:12:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2020-09-25 11:12:57,957 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 54 [2020-09-25 11:12:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:57,960 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2020-09-25 11:12:57,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:12:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2020-09-25 11:12:57,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 11:12:57,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:57,965 INFO L422 BasicCegarLoop]: trace histogram [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 11:12:57,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 11:12:57,966 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:57,966 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-09-25 11:12:57,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:57,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924135815] [2020-09-25 11:12:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:58,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 11:12:59,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-25 11:12:59,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 11:12:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 11:12:59,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 11:12:59,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:12:59,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:59,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:12:59,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924135815] [2020-09-25 11:12:59,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:59,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 11:12:59,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50134963] [2020-09-25 11:12:59,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 11:12:59,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:59,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 11:12:59,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:12:59,528 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand 17 states. [2020-09-25 11:13:00,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:00,899 INFO L93 Difference]: Finished difference Result 181 states and 189 transitions. [2020-09-25 11:13:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 11:13:00,900 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-09-25 11:13:00,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:00,901 INFO L225 Difference]: With dead ends: 181 [2020-09-25 11:13:00,902 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 11:13:00,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-09-25 11:13:00,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 11:13:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 125. [2020-09-25 11:13:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-25 11:13:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2020-09-25 11:13:00,910 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 55 [2020-09-25 11:13:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:00,910 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2020-09-25 11:13:00,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 11:13:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2020-09-25 11:13:00,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 11:13:00,912 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:00,912 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-09-25 11:13:00,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 11:13:00,912 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:00,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:00,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1380187476, now seen corresponding path program 1 times [2020-09-25 11:13:00,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:00,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13676637] [2020-09-25 11:13:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:00,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:02,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:05,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:05,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 11:13:05,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:13:05,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 11:13:05,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:05,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:13:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 11:13:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 11:13:05,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:06,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:13:06,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 11:13:06,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13676637] [2020-09-25 11:13:06,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:13:06,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 11:13:06,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990409648] [2020-09-25 11:13:06,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:13:06,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:06,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:13:06,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:13:06,083 INFO L87 Difference]: Start difference. First operand 125 states and 130 transitions. Second operand 6 states. [2020-09-25 11:13:06,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:06,360 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2020-09-25 11:13:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:13:06,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-09-25 11:13:06,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:06,362 INFO L225 Difference]: With dead ends: 153 [2020-09-25 11:13:06,363 INFO L226 Difference]: Without dead ends: 131 [2020-09-25 11:13:06,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:13:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-25 11:13:06,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-09-25 11:13:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 11:13:06,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2020-09-25 11:13:06,372 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 64 [2020-09-25 11:13:06,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:06,373 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2020-09-25 11:13:06,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:13:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2020-09-25 11:13:06,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 11:13:06,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:06,374 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-25 11:13:06,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 11:13:06,374 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:06,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:06,374 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-09-25 11:13:06,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:06,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005223618] [2020-09-25 11:13:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:08,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:13:08,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:08,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2359 [2020-09-25 11:13:08,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 11:13:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:09,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:09,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:09,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:09,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:09,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:09,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:13:09,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:09,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:09,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:09,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:09,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:09,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:09,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:13:09,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005223618] [2020-09-25 11:13:09,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:09,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 11:13:09,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252202813] [2020-09-25 11:13:09,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 11:13:09,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:09,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 11:13:09,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2020-09-25 11:13:09,561 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand 22 states. [2020-09-25 11:13:11,011 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-09-25 11:13:11,149 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2020-09-25 11:13:11,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:11,972 INFO L93 Difference]: Finished difference Result 205 states and 212 transitions. [2020-09-25 11:13:11,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 11:13:11,972 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-09-25 11:13:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:11,975 INFO L225 Difference]: With dead ends: 205 [2020-09-25 11:13:11,975 INFO L226 Difference]: Without dead ends: 202 [2020-09-25 11:13:11,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=355, Invalid=1451, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 11:13:11,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-25 11:13:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 140. [2020-09-25 11:13:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-25 11:13:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 145 transitions. [2020-09-25 11:13:11,984 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 145 transitions. Word has length 65 [2020-09-25 11:13:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:11,984 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 145 transitions. [2020-09-25 11:13:11,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 11:13:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 145 transitions. [2020-09-25 11:13:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 11:13:11,985 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:11,985 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-09-25 11:13:11,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 11:13:11,986 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:11,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:11,986 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-09-25 11:13:11,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:11,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365394450] [2020-09-25 11:13:11,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:12,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:16,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:17,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:17,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 11:13:17,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:13:17,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 11:13:17,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:17,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:17,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 11:13:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 11:13:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 11:13:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:17,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:17,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:17,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:17,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:13:17,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:17,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:13:17,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:17,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:17,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:17,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:17,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:17,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:17,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:13:17,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365394450] [2020-09-25 11:13:17,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:17,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 11:13:17,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040459096] [2020-09-25 11:13:17,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 11:13:17,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:17,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 11:13:17,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:13:17,469 INFO L87 Difference]: Start difference. First operand 140 states and 145 transitions. Second operand 16 states. [2020-09-25 11:13:18,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:18,624 INFO L93 Difference]: Finished difference Result 229 states and 238 transitions. [2020-09-25 11:13:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 11:13:18,625 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 11:13:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:18,628 INFO L225 Difference]: With dead ends: 229 [2020-09-25 11:13:18,628 INFO L226 Difference]: Without dead ends: 207 [2020-09-25 11:13:18,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2020-09-25 11:13:18,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-09-25 11:13:18,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 168. [2020-09-25 11:13:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-25 11:13:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2020-09-25 11:13:18,637 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 71 [2020-09-25 11:13:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:18,638 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2020-09-25 11:13:18,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 11:13:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2020-09-25 11:13:18,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 11:13:18,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:18,639 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:13:18,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 11:13:18,639 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:18,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:18,640 INFO L82 PathProgramCache]: Analyzing trace with hash 181469332, now seen corresponding path program 2 times [2020-09-25 11:13:18,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:18,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575673913] [2020-09-25 11:13:18,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:18,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:19,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:20,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking...