/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:32:43,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:43,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:43,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:43,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:43,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:43,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:43,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:43,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:43,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:43,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:43,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:43,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:43,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:43,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:43,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:43,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:43,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:43,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:43,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:43,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:43,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:43,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:43,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:43,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:43,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:43,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:43,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:43,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:43,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:43,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:43,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:43,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:43,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:43,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:43,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:43,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:43,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:43,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:43,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:43,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:43,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:32:43,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:43,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:43,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:43,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:43,783 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:43,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:43,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:43,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:43,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:43,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:43,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:43,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:43,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:43,787 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:43,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:43,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:43,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:43,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:43,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:43,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:43,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:43,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:43,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:43,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:43,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:43,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:43,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:43,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:43,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:43,790 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:32:44,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:44,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:44,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:44,296 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:44,297 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:44,298 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2020-09-25 05:32:44,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1d2b784e/9c6f727050f344b3b56d2fe330716ff5/FLAG4e44f0720 [2020-09-25 05:32:44,991 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:44,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2020-09-25 05:32:45,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1d2b784e/9c6f727050f344b3b56d2fe330716ff5/FLAG4e44f0720 [2020-09-25 05:32:45,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1d2b784e/9c6f727050f344b3b56d2fe330716ff5 [2020-09-25 05:32:45,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:45,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:45,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:45,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:45,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:45,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44cc83f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45, skipping insertion in model container [2020-09-25 05:32:45,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:45,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:45,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:46,013 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:46,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:46,142 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:46,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46 WrapperNode [2020-09-25 05:32:46,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:46,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:46,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:46,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:46,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... [2020-09-25 05:32:46,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... [2020-09-25 05:32:46,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... [2020-09-25 05:32:46,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... [2020-09-25 05:32:46,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... [2020-09-25 05:32:46,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... [2020-09-25 05:32:46,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... [2020-09-25 05:32:46,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:46,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:46,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:46,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:46,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 05:32:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 05:32:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 05:32:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-09-25 05:32:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:32:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 05:32:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 05:32:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:32:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:32:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:32:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:32:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:32:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:32:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:32:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:32:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:32:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:32:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:32:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:32:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:32:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:32:46,321 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:32:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:32:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:32:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:32:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:32:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:32:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:32:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:32:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:32:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:32:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:32:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:32:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:32:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:32:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:32:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:32:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:32:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:32:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:32:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:32:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:32:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:32:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:32:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:32:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:32:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:32:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:32:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:32:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:32:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:32:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:32:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:32:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:32:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:32:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:32:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:32:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:32:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:32:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:32:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:32:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:32:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:32:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:32:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:32:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 05:32:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:32:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:32:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 05:32:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:32:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:32:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 05:32:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:32:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:32:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:32:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:32:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:32:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:32:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:32:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:32:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:32:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:32:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:32:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:32:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:32:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:32:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:32:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:32:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:32:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:32:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:32:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:32:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:32:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:32:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:32:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:32:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:32:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:32:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:32:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:32:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:32:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:32:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:32:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:32:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:32:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:32:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:32:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:32:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:32:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:32:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 05:32:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-09-25 05:32:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:32:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:32:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:32:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:32:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:32:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:32:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:46,655 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 05:32:46,912 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:46,913 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 05:32:46,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:46 BoogieIcfgContainer [2020-09-25 05:32:46,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:46,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:46,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:46,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:46,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:45" (1/3) ... [2020-09-25 05:32:46,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b56e173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:46, skipping insertion in model container [2020-09-25 05:32:46,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:46" (2/3) ... [2020-09-25 05:32:46,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b56e173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:46, skipping insertion in model container [2020-09-25 05:32:46,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:46" (3/3) ... [2020-09-25 05:32:46,928 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_nullified-1.i [2020-09-25 05:32:46,940 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:46,951 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:32:46,975 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:32:47,008 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:47,009 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:47,009 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:47,009 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:47,009 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:47,009 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:47,010 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:47,010 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:47,036 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2020-09-25 05:32:47,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 05:32:47,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:47,049 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] [2020-09-25 05:32:47,049 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:47,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:47,058 INFO L82 PathProgramCache]: Analyzing trace with hash 136898680, now seen corresponding path program 1 times [2020-09-25 05:32:47,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:47,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479992496] [2020-09-25 05:32:47,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:32:47,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 05:32:47,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 05:32:47,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:32:47,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:47,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 05:32:47,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:32:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:32:47,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 05:32:47,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:32:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:47,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479992496] [2020-09-25 05:32:47,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:47,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:47,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069873384] [2020-09-25 05:32:47,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:47,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:47,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:47,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:47,632 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 4 states. [2020-09-25 05:32:48,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:48,045 INFO L93 Difference]: Finished difference Result 230 states and 265 transitions. [2020-09-25 05:32:48,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:32:48,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-09-25 05:32:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:48,062 INFO L225 Difference]: With dead ends: 230 [2020-09-25 05:32:48,063 INFO L226 Difference]: Without dead ends: 153 [2020-09-25 05:32:48,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:32:48,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-25 05:32:48,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 92. [2020-09-25 05:32:48,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 05:32:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2020-09-25 05:32:48,129 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 32 [2020-09-25 05:32:48,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:48,129 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2020-09-25 05:32:48,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2020-09-25 05:32:48,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 05:32:48,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:48,132 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] [2020-09-25 05:32:48,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:48,132 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:48,133 INFO L82 PathProgramCache]: Analyzing trace with hash 272796752, now seen corresponding path program 1 times [2020-09-25 05:32:48,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:48,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980558895] [2020-09-25 05:32:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:32:48,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 05:32:48,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:32:48,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:48,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:48,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:48,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:32:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:32:48,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 05:32:48,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:32:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:32:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:48,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980558895] [2020-09-25 05:32:48,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:48,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:32:48,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927587593] [2020-09-25 05:32:48,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:32:48,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:48,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:32:48,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:48,553 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 7 states. [2020-09-25 05:32:48,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:48,978 INFO L93 Difference]: Finished difference Result 172 states and 190 transitions. [2020-09-25 05:32:48,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:32:48,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-09-25 05:32:48,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:48,980 INFO L225 Difference]: With dead ends: 172 [2020-09-25 05:32:48,980 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 05:32:48,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:32:48,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 05:32:49,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2020-09-25 05:32:49,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 05:32:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2020-09-25 05:32:49,011 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 32 [2020-09-25 05:32:49,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:49,012 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2020-09-25 05:32:49,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:32:49,012 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2020-09-25 05:32:49,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 05:32:49,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:49,017 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] [2020-09-25 05:32:49,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:49,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:49,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:49,018 INFO L82 PathProgramCache]: Analyzing trace with hash -54471897, now seen corresponding path program 1 times [2020-09-25 05:32:49,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:49,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126721048] [2020-09-25 05:32:49,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:49,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:49,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:49,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:54,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:54,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 05:32:54,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:32:54,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 05:32:54,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:54,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:32:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:32:54,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:32:54,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:54,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:54,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:54,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:54,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:54,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:54,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:54,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:54,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:54,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:54,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:54,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:54,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:32:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:54,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:54,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:54,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:32:54,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 05:32:54,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:54,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:32:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:32:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 05:32:54,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:54,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126721048] [2020-09-25 05:32:54,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:32:54,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:32:54,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471393814] [2020-09-25 05:32:54,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:32:54,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:54,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:32:54,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:32:54,395 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand 9 states. [2020-09-25 05:32:54,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:54,705 INFO L93 Difference]: Finished difference Result 193 states and 213 transitions. [2020-09-25 05:32:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:32:54,705 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 05:32:54,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:54,708 INFO L225 Difference]: With dead ends: 193 [2020-09-25 05:32:54,708 INFO L226 Difference]: Without dead ends: 133 [2020-09-25 05:32:54,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:32:54,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-25 05:32:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 114. [2020-09-25 05:32:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 05:32:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2020-09-25 05:32:54,720 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 51 [2020-09-25 05:32:54,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:54,720 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2020-09-25 05:32:54,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:32:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2020-09-25 05:32:54,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 05:32:54,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:54,723 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:54,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:54,723 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:54,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:54,724 INFO L82 PathProgramCache]: Analyzing trace with hash -586426640, now seen corresponding path program 2 times [2020-09-25 05:32:54,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:54,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442017829] [2020-09-25 05:32:54,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:54,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:54,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:59,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:59,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 05:32:59,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:32:59,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:32:59,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:59,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 05:32:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 05:32:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:59,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:59,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:59,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:59,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:59,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:59,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:59,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:59,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:59,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:59,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:32:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:59,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:00,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:33:00,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:00,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 05:33:00,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:00,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:00,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:33:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 05:33:00,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 05:33:00,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:00,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442017829] [2020-09-25 05:33:00,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:00,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:33:00,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88172566] [2020-09-25 05:33:00,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:33:00,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:00,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:33:00,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:33:00,216 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand 7 states. [2020-09-25 05:33:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:00,543 INFO L93 Difference]: Finished difference Result 195 states and 215 transitions. [2020-09-25 05:33:00,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:33:00,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-09-25 05:33:00,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:00,545 INFO L225 Difference]: With dead ends: 195 [2020-09-25 05:33:00,545 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 05:33:00,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:33:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 05:33:00,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-09-25 05:33:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 05:33:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2020-09-25 05:33:00,555 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 70 [2020-09-25 05:33:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:00,555 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2020-09-25 05:33:00,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:33:00,556 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2020-09-25 05:33:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 05:33:00,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:00,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:00,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:33:00,558 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:00,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:00,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1356086606, now seen corresponding path program 1 times [2020-09-25 05:33:00,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:00,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454376826] [2020-09-25 05:33:00,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:05,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:05,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:05,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 05:33:05,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:33:05,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:33:05,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:05,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:33:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:33:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:05,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:05,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:05,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:05,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:05,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:05,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:33:05,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:05,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:05,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:05,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:05,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:05,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:05,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:33:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:05,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:06,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:06,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:33:06,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 05:33:06,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:06,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:33:06,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:33:06,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 05:33:06,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:06,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454376826] [2020-09-25 05:33:06,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:06,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 05:33:06,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092441899] [2020-09-25 05:33:06,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:33:06,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:06,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:33:06,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:33:06,169 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 11 states. [2020-09-25 05:33:06,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:06,521 INFO L93 Difference]: Finished difference Result 214 states and 233 transitions. [2020-09-25 05:33:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:33:06,521 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-09-25 05:33:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:06,523 INFO L225 Difference]: With dead ends: 214 [2020-09-25 05:33:06,523 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 05:33:06,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:33:06,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 05:33:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 135. [2020-09-25 05:33:06,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-09-25 05:33:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2020-09-25 05:33:06,551 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 71 [2020-09-25 05:33:06,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:06,552 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2020-09-25 05:33:06,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:33:06,552 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2020-09-25 05:33:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 05:33:06,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:06,556 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 05:33:06,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:33:06,556 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:06,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:06,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1395228995, now seen corresponding path program 2 times [2020-09-25 05:33:06,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:06,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64977093] [2020-09-25 05:33:06,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:06,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:09,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:11,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:11,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 05:33:11,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:33:11,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:33:11,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:11,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:33:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 05:33:11,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:11,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:11,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:11,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:11,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:11,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:11,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:11,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:11,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:11,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:11,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:11,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:33:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:12,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:12,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:33:12,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-09-25 05:33:12,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:12,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:33:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:33:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 05:33:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:12,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64977093] [2020-09-25 05:33:12,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:12,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 05:33:12,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298485673] [2020-09-25 05:33:12,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:33:12,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:12,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:33:12,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:33:12,417 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand 13 states. [2020-09-25 05:33:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:12,876 INFO L93 Difference]: Finished difference Result 235 states and 255 transitions. [2020-09-25 05:33:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:33:12,877 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2020-09-25 05:33:12,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:12,879 INFO L225 Difference]: With dead ends: 235 [2020-09-25 05:33:12,879 INFO L226 Difference]: Without dead ends: 175 [2020-09-25 05:33:12,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-09-25 05:33:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-25 05:33:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 156. [2020-09-25 05:33:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-25 05:33:12,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 168 transitions. [2020-09-25 05:33:12,898 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 168 transitions. Word has length 91 [2020-09-25 05:33:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:12,900 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 168 transitions. [2020-09-25 05:33:12,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:33:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 168 transitions. [2020-09-25 05:33:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 05:33:12,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:12,904 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:12,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:33:12,904 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:12,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:12,905 INFO L82 PathProgramCache]: Analyzing trace with hash 274581320, now seen corresponding path program 3 times [2020-09-25 05:33:12,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:12,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752905626] [2020-09-25 05:33:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:12,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:14,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:17,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:17,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:17,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 05:33:17,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:33:17,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 05:33:17,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:17,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:33:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 05:33:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:18,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:18,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:18,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:33:18,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:18,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:18,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:33:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:18,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:18,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 05:33:18,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:33:19,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752905626] [2020-09-25 05:33:19,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:19,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:33:19,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673186056] [2020-09-25 05:33:19,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:33:19,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:19,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:33:19,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:33:19,179 INFO L87 Difference]: Start difference. First operand 156 states and 168 transitions. Second operand 15 states. [2020-09-25 05:33:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:19,697 INFO L93 Difference]: Finished difference Result 256 states and 277 transitions. [2020-09-25 05:33:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 05:33:19,698 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 111 [2020-09-25 05:33:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:19,699 INFO L225 Difference]: With dead ends: 256 [2020-09-25 05:33:19,700 INFO L226 Difference]: Without dead ends: 196 [2020-09-25 05:33:19,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-09-25 05:33:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-25 05:33:19,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 177. [2020-09-25 05:33:19,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 05:33:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2020-09-25 05:33:19,708 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 111 [2020-09-25 05:33:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:19,708 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2020-09-25 05:33:19,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:33:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2020-09-25 05:33:19,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-25 05:33:19,710 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:19,710 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:19,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:33:19,710 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:19,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1182686291, now seen corresponding path program 4 times [2020-09-25 05:33:19,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:19,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874617226] [2020-09-25 05:33:19,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:21,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:22,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:22,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:22,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 05:33:22,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:33:22,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2772 [2020-09-25 05:33:22,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:22,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:33:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 05:33:22,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 05:33:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:22,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:22,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:22,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:22,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:22,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:22,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:22,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:33:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:22,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:24,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:24,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:33:24,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:24,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1742 [2020-09-25 05:33:24,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:24,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:24,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:33:24,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:24,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 05:33:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 118 proven. 19 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-25 05:33:24,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874617226] [2020-09-25 05:33:24,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:24,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 05:33:24,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831596137] [2020-09-25 05:33:24,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 05:33:24,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:24,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 05:33:24,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-09-25 05:33:24,864 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 18 states. [2020-09-25 05:33:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:25,974 INFO L93 Difference]: Finished difference Result 308 states and 334 transitions. [2020-09-25 05:33:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 05:33:25,975 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 131 [2020-09-25 05:33:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:25,978 INFO L225 Difference]: With dead ends: 308 [2020-09-25 05:33:25,978 INFO L226 Difference]: Without dead ends: 253 [2020-09-25 05:33:25,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=178, Invalid=1012, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 05:33:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-25 05:33:25,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 183. [2020-09-25 05:33:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 05:33:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 197 transitions. [2020-09-25 05:33:25,987 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 197 transitions. Word has length 131 [2020-09-25 05:33:25,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:25,987 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 197 transitions. [2020-09-25 05:33:25,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 05:33:25,988 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 197 transitions. [2020-09-25 05:33:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 05:33:25,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:25,989 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:25,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:33:25,990 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:25,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:25,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1200683152, now seen corresponding path program 1 times [2020-09-25 05:33:25,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:25,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333881331] [2020-09-25 05:33:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:26,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:28,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:28,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:28,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 05:33:28,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:28,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2650 [2020-09-25 05:33:28,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:28,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:28,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 05:33:28,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 05:33:28,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 05:33:28,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:28,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:28,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:28,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:28,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:28,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:28,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:33:28,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:28,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:28,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:28,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:28,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:28,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 05:33:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:28,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking...