/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:27:49,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:27:49,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:27:49,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:27:49,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:27:49,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:27:49,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:27:49,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:27:49,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:27:49,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:27:49,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:27:49,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:27:49,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:27:49,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:27:49,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:27:49,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:27:49,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:27:49,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:27:49,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:27:49,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:27:49,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:27:49,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:27:49,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:27:49,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:27:49,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:27:49,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:27:49,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:27:49,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:27:49,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:27:49,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:27:49,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:27:49,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:27:49,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:27:49,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:27:49,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:27:49,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:27:49,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:27:49,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:27:49,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:27:49,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:27:49,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:27:49,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:27:49,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:27:49,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:27:49,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:27:49,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:27:49,174 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:27:49,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:27:49,174 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:27:49,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:27:49,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:27:49,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:27:49,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:27:49,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:27:49,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:27:49,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:27:49,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:27:49,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:27:49,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:27:49,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:27:49,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:27:49,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:27:49,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:27:49,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:27:49,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:27:49,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:27:49,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:27:49,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:27:49,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:27:49,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:27:49,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:27:49,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:27:49,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:27:49,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:27:49,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:27:49,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:27:49,667 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:27:49,668 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-25 13:27:49,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c396c46f/4c80cda456db4625b2ea310de502f9c7/FLAGee3253d70 [2020-09-25 13:27:50,325 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:27:50,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-25 13:27:50,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c396c46f/4c80cda456db4625b2ea310de502f9c7/FLAGee3253d70 [2020-09-25 13:27:50,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c396c46f/4c80cda456db4625b2ea310de502f9c7 [2020-09-25 13:27:50,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:27:50,611 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:27:50,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:27:50,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:27:50,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:27:50,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:27:50" (1/1) ... [2020-09-25 13:27:50,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c435b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:50, skipping insertion in model container [2020-09-25 13:27:50,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:27:50" (1/1) ... [2020-09-25 13:27:50,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:27:50,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:27:51,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:27:51,185 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:27:51,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:27:51,302 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:27:51,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51 WrapperNode [2020-09-25 13:27:51,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:27:51,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:27:51,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:27:51,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:27:51,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... [2020-09-25 13:27:51,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... [2020-09-25 13:27:51,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... [2020-09-25 13:27:51,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... [2020-09-25 13:27:51,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... [2020-09-25 13:27:51,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... [2020-09-25 13:27:51,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... [2020-09-25 13:27:51,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:27:51,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:27:51,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:27:51,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:27:51,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:27:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:27:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:27:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:27:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 13:27:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 13:27:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 13:27:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 13:27:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 13:27:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 13:27:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 13:27:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 13:27:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 13:27:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 13:27:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 13:27:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 13:27:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 13:27:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 13:27:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 13:27:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 13:27:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 13:27:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 13:27:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 13:27:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 13:27:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 13:27:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 13:27:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 13:27:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 13:27:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 13:27:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 13:27:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 13:27:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 13:27:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 13:27:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 13:27:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 13:27:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 13:27:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 13:27:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 13:27:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 13:27:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 13:27:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 13:27:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 13:27:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 13:27:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 13:27:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 13:27:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 13:27:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 13:27:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 13:27:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 13:27:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 13:27:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 13:27:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 13:27:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 13:27:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 13:27:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:27:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 13:27:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 13:27:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:27:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 13:27:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 13:27:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 13:27:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 13:27:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 13:27:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 13:27:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 13:27:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 13:27:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 13:27:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 13:27:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 13:27:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 13:27:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 13:27:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 13:27:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 13:27:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 13:27:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 13:27:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 13:27:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 13:27:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 13:27:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 13:27:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 13:27:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 13:27:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 13:27:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 13:27:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 13:27:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 13:27:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 13:27:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:27:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:27:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:27:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:27:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:27:52,072 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:27:52,073 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-25 13:27:52,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:27:52 BoogieIcfgContainer [2020-09-25 13:27:52,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:27:52,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:27:52,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:27:52,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:27:52,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:27:50" (1/3) ... [2020-09-25 13:27:52,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1407e02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:27:52, skipping insertion in model container [2020-09-25 13:27:52,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:51" (2/3) ... [2020-09-25 13:27:52,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1407e02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:27:52, skipping insertion in model container [2020-09-25 13:27:52,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:27:52" (3/3) ... [2020-09-25 13:27:52,101 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-09-25 13:27:52,113 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:27:52,123 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 13:27:52,146 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 13:27:52,186 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:27:52,186 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:27:52,186 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:27:52,186 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:27:52,187 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:27:52,187 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:27:52,188 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:27:52,188 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:27:52,226 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-09-25 13:27:52,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 13:27:52,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:52,242 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] [2020-09-25 13:27:52,243 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:52,249 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times [2020-09-25 13:27:52,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:52,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229477994] [2020-09-25 13:27:52,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:52,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:52,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:53,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:53,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:27:53,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:27:53,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-09-25 13:27:53,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:53,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:53,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:27:53,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:27:53,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:27:53,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:27:53,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:53,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:53,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:53,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:27:53,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:27:53,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:53,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:53,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:53,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:53,349 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 13:27:53,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229477994] [2020-09-25 13:27:53,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:53,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:27:53,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457591654] [2020-09-25 13:27:53,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:27:53,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:53,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:27:53,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:27:53,381 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 9 states. [2020-09-25 13:27:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:53,928 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2020-09-25 13:27:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:27:53,930 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-09-25 13:27:53,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:53,945 INFO L225 Difference]: With dead ends: 280 [2020-09-25 13:27:53,946 INFO L226 Difference]: Without dead ends: 153 [2020-09-25 13:27:53,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:27:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-25 13:27:54,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85. [2020-09-25 13:27:54,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 13:27:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-09-25 13:27:54,011 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 20 [2020-09-25 13:27:54,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:54,012 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-09-25 13:27:54,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:27:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-09-25 13:27:54,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 13:27:54,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:54,014 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] [2020-09-25 13:27:54,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:27:54,015 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:54,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:54,015 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times [2020-09-25 13:27:54,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:54,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62577521] [2020-09-25 13:27:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:54,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:54,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:54,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:54,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 13:27:54,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:27:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-09-25 13:27:54,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:54,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:27:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 13:27:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:27:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:55,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:55,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:55,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:55,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:27:55,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:55,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:27:55,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:55,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:55,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:55,079 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 13:27:55,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62577521] [2020-09-25 13:27:55,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:55,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:27:55,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898020371] [2020-09-25 13:27:55,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:27:55,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:55,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:27:55,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:27:55,086 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 9 states. [2020-09-25 13:27:56,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:56,083 INFO L93 Difference]: Finished difference Result 182 states and 191 transitions. [2020-09-25 13:27:56,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:27:56,084 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-09-25 13:27:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:56,092 INFO L225 Difference]: With dead ends: 182 [2020-09-25 13:27:56,092 INFO L226 Difference]: Without dead ends: 180 [2020-09-25 13:27:56,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-09-25 13:27:56,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-25 13:27:56,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 83. [2020-09-25 13:27:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 13:27:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2020-09-25 13:27:56,114 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 31 [2020-09-25 13:27:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:56,115 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2020-09-25 13:27:56,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:27:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2020-09-25 13:27:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 13:27:56,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:56,120 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] [2020-09-25 13:27:56,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:27:56,123 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:56,124 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times [2020-09-25 13:27:56,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:56,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261192218] [2020-09-25 13:27:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:56,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:56,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:57,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:58,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:58,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:27:58,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:27:58,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2199 [2020-09-25 13:27:58,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:58,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:58,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:27:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:27:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:27:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:27:58,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:27:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:58,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:27:58,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:27:58,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:27:58,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:27:58,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:27:58,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:27:58,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:27:58,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:27:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:27:58,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:27:58,435 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 13:27:58,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261192218] [2020-09-25 13:27:58,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:27:58,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:27:58,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363194676] [2020-09-25 13:27:58,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:27:58,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:27:58,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:27:58,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:27:58,438 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 4 states. [2020-09-25 13:27:58,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:27:58,618 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2020-09-25 13:27:58,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 13:27:58,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-25 13:27:58,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:27:58,637 INFO L225 Difference]: With dead ends: 204 [2020-09-25 13:27:58,637 INFO L226 Difference]: Without dead ends: 142 [2020-09-25 13:27:58,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:27:58,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-25 13:27:58,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 103. [2020-09-25 13:27:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 13:27:58,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 111 transitions. [2020-09-25 13:27:58,649 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 111 transitions. Word has length 36 [2020-09-25 13:27:58,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:27:58,649 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 111 transitions. [2020-09-25 13:27:58,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:27:58,650 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 111 transitions. [2020-09-25 13:27:58,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 13:27:58,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:27:58,651 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] [2020-09-25 13:27:58,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:27:58,652 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:27:58,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:27:58,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times [2020-09-25 13:27:58,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:27:58,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056926766] [2020-09-25 13:27:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:27:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:27:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:58,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:58,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:27:59,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:28:00,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:28:00,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:28:00,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:28:00,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1843 [2020-09-25 13:28:00,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:28:00,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:28:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 13:28:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 13:28:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:28:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:28:00,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:28:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:28:00,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:28:00,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:28:00,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:28:00,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:28:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:28:00,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:28:00,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:28:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:28:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:28:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:28:00,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:28:00,722 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 13:28:00,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056926766] [2020-09-25 13:28:00,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:28:00,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 13:28:00,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570742205] [2020-09-25 13:28:00,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:28:00,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:28:00,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:28:00,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:28:00,725 INFO L87 Difference]: Start difference. First operand 103 states and 111 transitions. Second operand 12 states. [2020-09-25 13:28:01,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:28:01,190 INFO L93 Difference]: Finished difference Result 196 states and 207 transitions. [2020-09-25 13:28:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:28:01,190 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-09-25 13:28:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:28:01,192 INFO L225 Difference]: With dead ends: 196 [2020-09-25 13:28:01,192 INFO L226 Difference]: Without dead ends: 166 [2020-09-25 13:28:01,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:28:01,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-25 13:28:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 111. [2020-09-25 13:28:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-25 13:28:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2020-09-25 13:28:01,204 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 37 [2020-09-25 13:28:01,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:28:01,207 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2020-09-25 13:28:01,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:28:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2020-09-25 13:28:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 13:28:01,209 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:28:01,209 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] [2020-09-25 13:28:01,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:28:01,209 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:28:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:28:01,211 INFO L82 PathProgramCache]: Analyzing trace with hash 626563183, now seen corresponding path program 1 times [2020-09-25 13:28:01,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:28:01,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911369715] [2020-09-25 13:28:01,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:28:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:28:01,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:28:01,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:28:02,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:28:02,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 13:28:02,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:28:02,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1376 [2020-09-25 13:28:02,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:28:02,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:28:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:28:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:28:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 13:28:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:28:02,670 ERROR L253 erpolLogProxyWrapper]: Interpolant 16 not inductive [2020-09-25 13:28:02,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:28:02,694 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:155) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:256) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-25 13:28:02,704 INFO L168 Benchmark]: Toolchain (without parser) took 12094.30 ms. Allocated memory was 141.0 MB in the beginning and 308.3 MB in the end (delta: 167.2 MB). Free memory was 103.4 MB in the beginning and 153.0 MB in the end (delta: -49.7 MB). Peak memory consumption was 177.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:28:02,705 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 13:28:02,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.53 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 171.2 MB in the end (delta: -68.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:28:02,708 INFO L168 Benchmark]: Boogie Preprocessor took 73.28 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 168.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:28:02,714 INFO L168 Benchmark]: RCFGBuilder took 704.47 ms. Allocated memory is still 204.5 MB. Free memory was 168.6 MB in the beginning and 118.7 MB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:28:02,715 INFO L168 Benchmark]: TraceAbstraction took 10614.96 ms. Allocated memory was 204.5 MB in the beginning and 308.3 MB in the end (delta: 103.8 MB). Free memory was 118.7 MB in the beginning and 153.0 MB in the end (delta: -34.3 MB). Peak memory consumption was 128.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:28:02,726 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.53 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 171.2 MB in the end (delta: -68.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.28 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 168.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 704.47 ms. Allocated memory is still 204.5 MB. Free memory was 168.6 MB in the beginning and 118.7 MB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10614.96 ms. Allocated memory was 204.5 MB in the beginning and 308.3 MB in the end (delta: 103.8 MB). Free memory was 118.7 MB in the beginning and 153.0 MB in the end (delta: -34.3 MB). Peak memory consumption was 128.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...