/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=SHALLOWEST --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-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:51:58,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:51:58,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:51:58,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:51:58,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:51:58,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:51:58,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:51:58,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:51:58,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:51:58,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:51:58,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:51:58,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:51:58,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:51:58,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:51:58,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:51:58,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:51:58,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:51:58,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:51:58,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:51:58,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:51:58,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:51:58,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:51:58,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:51:58,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:51:58,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:51:58,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:51:58,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:51:58,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:51:58,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:51:58,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:51:58,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:51:58,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:51:58,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:51:58,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:51:58,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:51:58,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:51:58,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:51:58,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:51:58,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:51:58,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:51:58,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:51:58,214 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 [2020-09-24 23:51:58,262 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:51:58,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:51:58,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:51:58,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:51:58,265 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:51:58,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:51:58,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:51:58,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:51:58,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:51:58,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:51:58,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:51:58,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:51:58,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:51:58,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:51:58,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:51:58,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:51:58,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:51:58,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:51:58,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:51:58,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:51:58,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:51:58,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:51:58,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:51:58,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:51:58,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:51:58,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:51:58,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:51:58,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:51:58,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:51:58,272 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:51:58,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:51:58,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:51:58,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:51:58,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:51:58,758 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:51:58,759 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-24 23:51:58,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3d038c17/577cec49c61b4b7e916a51e1495de568/FLAGefde623d5 [2020-09-24 23:51:59,538 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:51:59,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-24 23:51:59,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3d038c17/577cec49c61b4b7e916a51e1495de568/FLAGefde623d5 [2020-09-24 23:51:59,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3d038c17/577cec49c61b4b7e916a51e1495de568 [2020-09-24 23:51:59,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:51:59,786 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:51:59,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:51:59,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:51:59,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:51:59,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:51:59" (1/1) ... [2020-09-24 23:51:59,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32943db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:51:59, skipping insertion in model container [2020-09-24 23:51:59,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:51:59" (1/1) ... [2020-09-24 23:51:59,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:51:59,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:52:00,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:52:00,416 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:52:00,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:52:00,519 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:52:00,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00 WrapperNode [2020-09-24 23:52:00,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:52:00,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:52:00,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:52:00,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:52:00,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (1/1) ... [2020-09-24 23:52:00,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (1/1) ... [2020-09-24 23:52:00,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (1/1) ... [2020-09-24 23:52:00,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (1/1) ... [2020-09-24 23:52:00,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (1/1) ... [2020-09-24 23:52:00,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (1/1) ... [2020-09-24 23:52:00,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (1/1) ... [2020-09-24 23:52:00,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:52:00,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:52:00,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:52:00,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:52:00,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (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 [2020-09-24 23:52:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:52:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:52:00,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:52:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 23:52:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 23:52:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 23:52:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 23:52:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 23:52:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 23:52:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 23:52:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 23:52:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 23:52:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 23:52:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 23:52:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 23:52:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 23:52:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 23:52:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 23:52:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 23:52:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 23:52:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 23:52:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 23:52:00,696 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 23:52:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 23:52:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 23:52:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 23:52:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 23:52:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 23:52:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 23:52:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 23:52:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 23:52:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 23:52:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 23:52:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 23:52:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 23:52:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 23:52:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 23:52:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 23:52:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 23:52:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 23:52:00,699 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 23:52:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 23:52:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 23:52:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 23:52:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 23:52:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 23:52:00,700 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 23:52:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 23:52:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 23:52:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 23:52:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 23:52:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 23:52:00,701 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 23:52:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:52:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 23:52:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 23:52:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:52:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 23:52:00,702 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 23:52:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 23:52:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 23:52:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-24 23:52:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 23:52:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 23:52:00,703 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-24 23:52:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 23:52:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 23:52:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-24 23:52:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 23:52:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 23:52:00,704 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 23:52:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 23:52:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 23:52:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 23:52:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 23:52:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 23:52:00,705 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 23:52:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 23:52:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 23:52:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 23:52:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 23:52:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 23:52:00,706 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 23:52:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 23:52:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 23:52:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 23:52:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 23:52:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 23:52:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 23:52:00,707 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 23:52:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 23:52:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 23:52:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 23:52:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 23:52:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 23:52:00,708 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 23:52:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 23:52:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 23:52:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 23:52:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 23:52:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 23:52:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 23:52:00,709 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 23:52:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 23:52:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 23:52:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 23:52:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:52:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:52:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:52:00,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:52:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:52:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:52:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:52:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:52:00,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:52:01,474 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:52:01,474 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-24 23:52:01,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:01 BoogieIcfgContainer [2020-09-24 23:52:01,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:52:01,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:52:01,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:52:01,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:52:01,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:51:59" (1/3) ... [2020-09-24 23:52:01,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b6677f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:01, skipping insertion in model container [2020-09-24 23:52:01,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:00" (2/3) ... [2020-09-24 23:52:01,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b6677f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:01, skipping insertion in model container [2020-09-24 23:52:01,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:01" (3/3) ... [2020-09-24 23:52:01,492 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-09-24 23:52:01,506 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:52:01,517 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-24 23:52:01,541 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-24 23:52:01,576 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:52:01,576 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:52:01,576 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:52:01,577 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:52:01,577 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:52:01,577 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:52:01,577 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:52:01,577 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:52:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-24 23:52:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-24 23:52:01,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:01,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:52:01,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:01,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:01,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-09-24 23:52:01,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:01,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546386312] [2020-09-24 23:52:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:01,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:02,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:02,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:52:02,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:02,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-24 23:52:02,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:02,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:52:02,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:02,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:02,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:02,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:02,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:52:02,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:02,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:02,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546386312] [2020-09-24 23:52:02,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:02,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:52:02,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606697855] [2020-09-24 23:52:02,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:52:02,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:02,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:52:02,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:52:02,190 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-24 23:52:02,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:02,607 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-09-24 23:52:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:52:02,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-24 23:52:02,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:02,625 INFO L225 Difference]: With dead ends: 359 [2020-09-24 23:52:02,626 INFO L226 Difference]: Without dead ends: 194 [2020-09-24 23:52:02,632 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 [2020-09-24 23:52:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-24 23:52:02,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-24 23:52:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-24 23:52:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-09-24 23:52:02,700 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-09-24 23:52:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:02,701 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-09-24 23:52:02,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:52:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-09-24 23:52:02,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-24 23:52:02,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:02,702 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] [2020-09-24 23:52:02,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:52:02,703 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:02,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-09-24 23:52:02,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:02,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600035777] [2020-09-24 23:52:02,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:02,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:03,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:03,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:52:03,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-24 23:52:03,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:52:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 23:52:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:52:03,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:03,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:03,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:03,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:03,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:03,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:52:03,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:03,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:03,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600035777] [2020-09-24 23:52:03,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:03,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:52:03,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292820146] [2020-09-24 23:52:03,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:52:03,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:03,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:52:03,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:52:03,131 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 6 states. [2020-09-24 23:52:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:03,591 INFO L93 Difference]: Finished difference Result 392 states and 414 transitions. [2020-09-24 23:52:03,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:52:03,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-24 23:52:03,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:03,594 INFO L225 Difference]: With dead ends: 392 [2020-09-24 23:52:03,595 INFO L226 Difference]: Without dead ends: 259 [2020-09-24 23:52:03,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:52:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-24 23:52:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 167. [2020-09-24 23:52:03,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-24 23:52:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2020-09-24 23:52:03,615 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 25 [2020-09-24 23:52:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:03,616 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 176 transitions. [2020-09-24 23:52:03,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:52:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 176 transitions. [2020-09-24 23:52:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 23:52:03,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:03,617 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] [2020-09-24 23:52:03,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:52:03,618 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:03,618 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-09-24 23:52:03,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:03,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696988671] [2020-09-24 23:52:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:03,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:03,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:03,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:03,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:52:03,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:03,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-24 23:52:03,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:03,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:52:03,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 23:52:03,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:52:03,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:04,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:04,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:04,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:04,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:04,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:04,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:52:04,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:04,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:04,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:04,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696988671] [2020-09-24 23:52:04,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:04,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:52:04,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637208072] [2020-09-24 23:52:04,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:52:04,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:04,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:52:04,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:52:04,051 INFO L87 Difference]: Start difference. First operand 167 states and 176 transitions. Second operand 6 states. [2020-09-24 23:52:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:04,539 INFO L93 Difference]: Finished difference Result 260 states and 275 transitions. [2020-09-24 23:52:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:52:04,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-24 23:52:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:04,541 INFO L225 Difference]: With dead ends: 260 [2020-09-24 23:52:04,542 INFO L226 Difference]: Without dead ends: 255 [2020-09-24 23:52:04,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:52:04,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-24 23:52:04,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 170. [2020-09-24 23:52:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-24 23:52:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 179 transitions. [2020-09-24 23:52:04,577 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 179 transitions. Word has length 27 [2020-09-24 23:52:04,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:04,577 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 179 transitions. [2020-09-24 23:52:04,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:52:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 179 transitions. [2020-09-24 23:52:04,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 23:52:04,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:04,585 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] [2020-09-24 23:52:04,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:52:04,586 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:04,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:04,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1216115010, now seen corresponding path program 1 times [2020-09-24 23:52:04,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:04,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482301098] [2020-09-24 23:52:04,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:04,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:04,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:06,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:06,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 23:52:06,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:06,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1510 [2020-09-24 23:52:06,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:52:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:52:06,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:06,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:06,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:06,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:06,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:06,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:06,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:52:06,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:06,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:06,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:06,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:06,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482301098] [2020-09-24 23:52:06,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:06,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:52:06,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222586922] [2020-09-24 23:52:06,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:52:06,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:06,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:52:06,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:52:06,388 INFO L87 Difference]: Start difference. First operand 170 states and 179 transitions. Second operand 12 states. [2020-09-24 23:52:07,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:07,413 INFO L93 Difference]: Finished difference Result 540 states and 569 transitions. [2020-09-24 23:52:07,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:52:07,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-09-24 23:52:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:07,417 INFO L225 Difference]: With dead ends: 540 [2020-09-24 23:52:07,417 INFO L226 Difference]: Without dead ends: 405 [2020-09-24 23:52:07,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-09-24 23:52:07,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-09-24 23:52:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 162. [2020-09-24 23:52:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-24 23:52:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 170 transitions. [2020-09-24 23:52:07,455 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 170 transitions. Word has length 34 [2020-09-24 23:52:07,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:07,456 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 170 transitions. [2020-09-24 23:52:07,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:52:07,456 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 170 transitions. [2020-09-24 23:52:07,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:52:07,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:07,460 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] [2020-09-24 23:52:07,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:52:07,460 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:07,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:07,461 INFO L82 PathProgramCache]: Analyzing trace with hash -820684573, now seen corresponding path program 1 times [2020-09-24 23:52:07,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:07,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433381088] [2020-09-24 23:52:07,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:07,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:07,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:07,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:07,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 23:52:07,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:07,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-24 23:52:07,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:07,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:52:07,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:07,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:52:07,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:07,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:07,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:07,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:07,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:07,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:52:07,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:07,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:07,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:07,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:07,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433381088] [2020-09-24 23:52:07,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:07,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:52:07,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038446912] [2020-09-24 23:52:07,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:52:07,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:07,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:52:07,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:52:07,763 INFO L87 Difference]: Start difference. First operand 162 states and 170 transitions. Second operand 6 states. [2020-09-24 23:52:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:08,076 INFO L93 Difference]: Finished difference Result 270 states and 284 transitions. [2020-09-24 23:52:08,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:52:08,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 23:52:08,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:08,079 INFO L225 Difference]: With dead ends: 270 [2020-09-24 23:52:08,080 INFO L226 Difference]: Without dead ends: 238 [2020-09-24 23:52:08,081 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 [2020-09-24 23:52:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-24 23:52:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 161. [2020-09-24 23:52:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-24 23:52:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 169 transitions. [2020-09-24 23:52:08,097 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 169 transitions. Word has length 35 [2020-09-24 23:52:08,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:08,098 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 169 transitions. [2020-09-24 23:52:08,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:52:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 169 transitions. [2020-09-24 23:52:08,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 23:52:08,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:08,103 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] [2020-09-24 23:52:08,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:52:08,103 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:08,104 INFO L82 PathProgramCache]: Analyzing trace with hash -2091807586, now seen corresponding path program 1 times [2020-09-24 23:52:08,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:08,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152663627] [2020-09-24 23:52:08,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:08,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:08,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:09,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:09,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 23:52:09,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:52:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1383 [2020-09-24 23:52:09,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:52:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 23:52:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:09,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:09,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:09,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:09,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:09,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:09,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:52:09,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:09,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:09,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:09,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152663627] [2020-09-24 23:52:09,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:09,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:52:09,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249569428] [2020-09-24 23:52:09,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:52:09,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:09,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:52:09,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:52:09,627 INFO L87 Difference]: Start difference. First operand 161 states and 169 transitions. Second operand 10 states. [2020-09-24 23:52:10,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:10,096 INFO L93 Difference]: Finished difference Result 232 states and 244 transitions. [2020-09-24 23:52:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:52:10,096 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-09-24 23:52:10,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:10,098 INFO L225 Difference]: With dead ends: 232 [2020-09-24 23:52:10,098 INFO L226 Difference]: Without dead ends: 228 [2020-09-24 23:52:10,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:52:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-24 23:52:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 157. [2020-09-24 23:52:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-24 23:52:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 165 transitions. [2020-09-24 23:52:10,107 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 165 transitions. Word has length 42 [2020-09-24 23:52:10,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:10,107 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 165 transitions. [2020-09-24 23:52:10,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:52:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 165 transitions. [2020-09-24 23:52:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 23:52:10,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:10,109 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] [2020-09-24 23:52:10,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:52:10,110 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:10,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:10,110 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-09-24 23:52:10,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:10,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375559067] [2020-09-24 23:52:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:10,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:10,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:10,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 23:52:10,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:10,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 23:52:10,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 23:52:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:52:10,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:10,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:10,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:10,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:10,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:10,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:52:10,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:10,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:10,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375559067] [2020-09-24 23:52:10,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:10,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:52:10,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280392988] [2020-09-24 23:52:10,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:52:10,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:10,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:52:10,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:52:10,235 INFO L87 Difference]: Start difference. First operand 157 states and 165 transitions. Second operand 4 states. [2020-09-24 23:52:10,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:10,456 INFO L93 Difference]: Finished difference Result 199 states and 211 transitions. [2020-09-24 23:52:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 23:52:10,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-24 23:52:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:10,459 INFO L225 Difference]: With dead ends: 199 [2020-09-24 23:52:10,459 INFO L226 Difference]: Without dead ends: 197 [2020-09-24 23:52:10,460 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 [2020-09-24 23:52:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-24 23:52:10,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 159. [2020-09-24 23:52:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-24 23:52:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 168 transitions. [2020-09-24 23:52:10,467 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 168 transitions. Word has length 43 [2020-09-24 23:52:10,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:10,468 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 168 transitions. [2020-09-24 23:52:10,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:52:10,468 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 168 transitions. [2020-09-24 23:52:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 23:52:10,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:10,469 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] [2020-09-24 23:52:10,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:52:10,470 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1847672787, now seen corresponding path program 1 times [2020-09-24 23:52:10,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:10,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662944316] [2020-09-24 23:52:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:10,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:10,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:10,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:10,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:11,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:11,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 23:52:11,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:52:11,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 804 [2020-09-24 23:52:11,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:11,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:52:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 23:52:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 23:52:11,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:11,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:11,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:11,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:11,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:11,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:11,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:52:11,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:11,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:11,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:11,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:11,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662944316] [2020-09-24 23:52:11,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:11,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:52:11,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052643530] [2020-09-24 23:52:11,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:52:11,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:11,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:52:11,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:52:11,459 INFO L87 Difference]: Start difference. First operand 159 states and 168 transitions. Second operand 7 states. [2020-09-24 23:52:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:11,983 INFO L93 Difference]: Finished difference Result 350 states and 373 transitions. [2020-09-24 23:52:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:52:11,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-09-24 23:52:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:11,986 INFO L225 Difference]: With dead ends: 350 [2020-09-24 23:52:11,986 INFO L226 Difference]: Without dead ends: 281 [2020-09-24 23:52:11,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:52:11,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-24 23:52:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 178. [2020-09-24 23:52:11,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-24 23:52:11,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 188 transitions. [2020-09-24 23:52:11,997 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 188 transitions. Word has length 45 [2020-09-24 23:52:11,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:11,998 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 188 transitions. [2020-09-24 23:52:11,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:52:11,998 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 188 transitions. [2020-09-24 23:52:11,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 23:52:11,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:11,999 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] [2020-09-24 23:52:12,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 23:52:12,000 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:12,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:12,000 INFO L82 PathProgramCache]: Analyzing trace with hash 797256871, now seen corresponding path program 1 times [2020-09-24 23:52:12,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:12,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335044009] [2020-09-24 23:52:12,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:12,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:12,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:12,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:12,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:14,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:14,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 23:52:14,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:52:14,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2019 [2020-09-24 23:52:14,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:52:14,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:14,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:52:14,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:14,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:14,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:14,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:14,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:14,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:52:14,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:14,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:14,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335044009] [2020-09-24 23:52:14,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:14,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 23:52:14,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178859509] [2020-09-24 23:52:14,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:52:14,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:14,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:52:14,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:52:14,217 INFO L87 Difference]: Start difference. First operand 178 states and 188 transitions. Second operand 13 states. [2020-09-24 23:52:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:15,423 INFO L93 Difference]: Finished difference Result 541 states and 576 transitions. [2020-09-24 23:52:15,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:52:15,424 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 50 [2020-09-24 23:52:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:15,427 INFO L225 Difference]: With dead ends: 541 [2020-09-24 23:52:15,428 INFO L226 Difference]: Without dead ends: 472 [2020-09-24 23:52:15,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-09-24 23:52:15,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-24 23:52:15,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 195. [2020-09-24 23:52:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 23:52:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 207 transitions. [2020-09-24 23:52:15,440 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 207 transitions. Word has length 50 [2020-09-24 23:52:15,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:15,441 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 207 transitions. [2020-09-24 23:52:15,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:52:15,441 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 207 transitions. [2020-09-24 23:52:15,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 23:52:15,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:15,442 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] [2020-09-24 23:52:15,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 23:52:15,443 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:15,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:15,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-09-24 23:52:15,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:15,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154587452] [2020-09-24 23:52:15,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:15,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:16,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:18,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:18,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 23:52:18,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:52:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3352 [2020-09-24 23:52:18,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:52:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 23:52:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:19,187 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-09-24 23:52:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:19,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:19,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:19,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:19,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:19,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:52:19,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:19,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154587452] [2020-09-24 23:52:19,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:19,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 23:52:19,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517872941] [2020-09-24 23:52:19,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:52:19,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:19,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:52:19,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:52:19,458 INFO L87 Difference]: Start difference. First operand 195 states and 207 transitions. Second operand 14 states. [2020-09-24 23:52:21,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:21,770 INFO L93 Difference]: Finished difference Result 546 states and 579 transitions. [2020-09-24 23:52:21,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 23:52:21,770 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-09-24 23:52:21,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:21,777 INFO L225 Difference]: With dead ends: 546 [2020-09-24 23:52:21,777 INFO L226 Difference]: Without dead ends: 543 [2020-09-24 23:52:21,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=257, Invalid=735, Unknown=0, NotChecked=0, Total=992 [2020-09-24 23:52:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-09-24 23:52:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 198. [2020-09-24 23:52:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-24 23:52:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 210 transitions. [2020-09-24 23:52:21,800 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 210 transitions. Word has length 54 [2020-09-24 23:52:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:21,800 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 210 transitions. [2020-09-24 23:52:21,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 23:52:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 210 transitions. [2020-09-24 23:52:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 23:52:21,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:21,803 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] [2020-09-24 23:52:21,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 23:52:21,803 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:21,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:21,804 INFO L82 PathProgramCache]: Analyzing trace with hash 358720869, now seen corresponding path program 1 times [2020-09-24 23:52:21,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:21,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265086655] [2020-09-24 23:52:21,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:21,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:21,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:21,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:21,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:22,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:24,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:24,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 23:52:24,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:52:24,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2456 [2020-09-24 23:52:24,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:52:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 23:52:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 23:52:24,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:24,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:24,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:24,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:24,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:24,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:52:24,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 23:52:24,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265086655] [2020-09-24 23:52:24,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:24,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:52:24,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225396610] [2020-09-24 23:52:24,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:52:24,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:24,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:52:24,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:52:24,436 INFO L87 Difference]: Start difference. First operand 198 states and 210 transitions. Second operand 6 states. [2020-09-24 23:52:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:24,830 INFO L93 Difference]: Finished difference Result 283 states and 301 transitions. [2020-09-24 23:52:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:52:24,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-24 23:52:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:24,832 INFO L225 Difference]: With dead ends: 283 [2020-09-24 23:52:24,832 INFO L226 Difference]: Without dead ends: 253 [2020-09-24 23:52:24,833 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 [2020-09-24 23:52:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-24 23:52:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2020-09-24 23:52:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-24 23:52:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 252 transitions. [2020-09-24 23:52:24,845 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 252 transitions. Word has length 54 [2020-09-24 23:52:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:24,846 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 252 transitions. [2020-09-24 23:52:24,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:52:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 252 transitions. [2020-09-24 23:52:24,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 23:52:24,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:24,847 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:52:24,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 23:52:24,847 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:24,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:24,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1943233352, now seen corresponding path program 1 times [2020-09-24 23:52:24,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:24,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477818204] [2020-09-24 23:52:24,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:24,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:24,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:25,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:25,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 23:52:25,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:25,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-09-24 23:52:25,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:25,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:52:25,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:52:25,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:52:25,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:25,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:25,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:25,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:25,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:25,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:25,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:52:25,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:25,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:25,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477818204] [2020-09-24 23:52:25,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:52:25,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:52:25,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013515475] [2020-09-24 23:52:25,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:52:25,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:25,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:52:25,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:52:25,412 INFO L87 Difference]: Start difference. First operand 232 states and 252 transitions. Second operand 7 states. [2020-09-24 23:52:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:25,901 INFO L93 Difference]: Finished difference Result 381 states and 411 transitions. [2020-09-24 23:52:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:52:25,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-09-24 23:52:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:25,903 INFO L225 Difference]: With dead ends: 381 [2020-09-24 23:52:25,903 INFO L226 Difference]: Without dead ends: 278 [2020-09-24 23:52:25,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:52:25,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-24 23:52:25,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 232. [2020-09-24 23:52:25,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-24 23:52:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 250 transitions. [2020-09-24 23:52:25,917 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 250 transitions. Word has length 56 [2020-09-24 23:52:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:25,917 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 250 transitions. [2020-09-24 23:52:25,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:52:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 250 transitions. [2020-09-24 23:52:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 23:52:25,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:25,919 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, 1, 1] [2020-09-24 23:52:25,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 23:52:25,920 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:25,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1270543956, now seen corresponding path program 1 times [2020-09-24 23:52:25,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:25,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683695093] [2020-09-24 23:52:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:26,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:26,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:26,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 23:52:26,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 23:52:26,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:52:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-24 23:52:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:52:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:26,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:26,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:26,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:26,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:52:26,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:26,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:52:26,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:26,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:26,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:52:26,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683695093] [2020-09-24 23:52:26,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:26,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:52:26,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695763339] [2020-09-24 23:52:26,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:52:26,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:26,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:52:26,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:52:26,243 INFO L87 Difference]: Start difference. First operand 232 states and 250 transitions. Second operand 6 states. [2020-09-24 23:52:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:26,564 INFO L93 Difference]: Finished difference Result 375 states and 403 transitions. [2020-09-24 23:52:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:52:26,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-09-24 23:52:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:26,567 INFO L225 Difference]: With dead ends: 375 [2020-09-24 23:52:26,567 INFO L226 Difference]: Without dead ends: 256 [2020-09-24 23:52:26,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:52:26,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-09-24 23:52:26,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 235. [2020-09-24 23:52:26,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-24 23:52:26,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-09-24 23:52:26,578 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 56 [2020-09-24 23:52:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:26,578 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-09-24 23:52:26,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:52:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-09-24 23:52:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 23:52:26,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:26,580 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, 1, 1, 1, 1] [2020-09-24 23:52:26,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 23:52:26,580 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:26,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:26,580 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-09-24 23:52:26,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:26,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044840265] [2020-09-24 23:52:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:52:26,599 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:52:26,600 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:52:26,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 23:52:26,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:52:26 BoogieIcfgContainer [2020-09-24 23:52:26,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:52:26,631 INFO L168 Benchmark]: Toolchain (without parser) took 26851.04 ms. Allocated memory was 147.8 MB in the beginning and 400.6 MB in the end (delta: 252.7 MB). Free memory was 103.3 MB in the beginning and 248.0 MB in the end (delta: -144.7 MB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:26,632 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-24 23:52:26,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.43 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 102.5 MB in the beginning and 173.9 MB in the end (delta: -71.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:26,635 INFO L168 Benchmark]: Boogie Preprocessor took 90.17 ms. Allocated memory is still 207.1 MB. Free memory was 173.9 MB in the beginning and 170.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:26,636 INFO L168 Benchmark]: RCFGBuilder took 870.13 ms. Allocated memory is still 207.1 MB. Free memory was 170.0 MB in the beginning and 107.4 MB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:26,636 INFO L168 Benchmark]: TraceAbstraction took 25146.48 ms. Allocated memory was 207.1 MB in the beginning and 400.6 MB in the end (delta: 193.5 MB). Free memory was 106.5 MB in the beginning and 248.0 MB in the end (delta: -141.6 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:52:26,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.43 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 102.5 MB in the beginning and 173.9 MB in the end (delta: -71.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.17 ms. Allocated memory is still 207.1 MB. Free memory was 173.9 MB in the beginning and 170.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 870.13 ms. Allocated memory is still 207.1 MB. Free memory was 170.0 MB in the beginning and 107.4 MB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25146.48 ms. Allocated memory was 207.1 MB in the beginning and 400.6 MB in the end (delta: 193.5 MB). Free memory was 106.5 MB in the beginning and 248.0 MB in the end (delta: -141.6 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.0s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2246 SDtfs, 4702 SDslu, 8207 SDs, 0 SdLazy, 5209 SolverSat, 175 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 1449 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 592 NumberOfCodeBlocks, 592 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 521 ConstructedInterpolants, 0 QuantifiedInterpolants, 220351 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 6/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...