/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:48:42,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:48:42,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:48:42,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:48:42,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:48:42,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:48:42,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:48:42,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:48:42,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:48:42,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:48:42,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:48:42,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:48:42,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:48:42,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:48:42,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:48:42,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:48:42,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:48:42,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:48:42,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:48:42,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:48:42,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:48:42,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:48:42,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:48:42,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:48:42,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:48:42,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:48:42,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:48:42,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:48:42,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:48:42,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:48:42,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:48:42,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:48:42,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:48:42,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:48:42,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:48:42,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:48:42,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:48:42,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:48:42,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:48:42,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:48:42,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:48:42,833 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 [2020-10-14 19:48:42,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:48:42,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:48:42,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:48:42,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:48:42,891 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:48:42,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:48:42,892 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:48:42,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:48:42,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:48:42,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:48:42,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:48:42,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:48:42,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:48:42,895 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:48:42,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:48:42,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:48:42,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:48:42,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:48:42,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:48:42,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:48:42,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:48:42,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:48:42,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:48:42,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:48:42,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:48:42,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:48:42,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:48:42,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:48:42,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:48:42,899 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:48:43,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:48:43,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:48:43,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:48:43,233 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:48:43,233 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:48:43,234 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label54.c [2020-10-14 19:48:43,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eec8016ee/d5b1b5be3e7641248ab342020c39c6a4/FLAG5dc78030b [2020-10-14 19:48:44,285 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:48:44,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label54.c [2020-10-14 19:48:44,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eec8016ee/d5b1b5be3e7641248ab342020c39c6a4/FLAG5dc78030b [2020-10-14 19:48:44,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eec8016ee/d5b1b5be3e7641248ab342020c39c6a4 [2020-10-14 19:48:44,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:48:44,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:48:44,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:48:44,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:48:44,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:48:44,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:48:44" (1/1) ... [2020-10-14 19:48:44,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12925ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:44, skipping insertion in model container [2020-10-14 19:48:44,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:48:44" (1/1) ... [2020-10-14 19:48:44,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:48:44,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:48:47,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:48:47,399 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:48:48,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:48:48,939 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:48:48,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48 WrapperNode [2020-10-14 19:48:48,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:48:48,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:48:48,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:48:48,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:48:48,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (1/1) ... [2020-10-14 19:48:48,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (1/1) ... [2020-10-14 19:48:49,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (1/1) ... [2020-10-14 19:48:49,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (1/1) ... [2020-10-14 19:48:49,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (1/1) ... [2020-10-14 19:48:49,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (1/1) ... [2020-10-14 19:48:49,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (1/1) ... [2020-10-14 19:48:49,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:48:49,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:48:49,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:48:49,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:48:49,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (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 [2020-10-14 19:48:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:48:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:48:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:48:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 19:48:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 19:48:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 19:48:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 19:48:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-14 19:48:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-14 19:48:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-14 19:48:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:48:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:48:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 19:48:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 19:48:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 19:48:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 19:48:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-14 19:48:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-14 19:48:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-14 19:48:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:48:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:48:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:48:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:48:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:48:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:48:57,714 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:48:57,714 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:48:57,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:48:57 BoogieIcfgContainer [2020-10-14 19:48:57,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:48:57,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:48:57,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:48:57,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:48:57,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:48:44" (1/3) ... [2020-10-14 19:48:57,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b8cc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:48:57, skipping insertion in model container [2020-10-14 19:48:57,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:48:48" (2/3) ... [2020-10-14 19:48:57,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b8cc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:48:57, skipping insertion in model container [2020-10-14 19:48:57,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:48:57" (3/3) ... [2020-10-14 19:48:57,741 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem05_label54.c [2020-10-14 19:48:57,752 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:48:57,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:48:57,777 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:48:57,813 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:48:57,813 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:48:57,813 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:48:57,813 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:48:57,813 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:48:57,813 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:48:57,813 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:48:57,814 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:48:57,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states. [2020-10-14 19:48:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2020-10-14 19:48:57,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:48:57,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:48:57,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:48:57,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:48:57,985 INFO L82 PathProgramCache]: Analyzing trace with hash 758964777, now seen corresponding path program 1 times [2020-10-14 19:48:57,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:48:57,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483328498] [2020-10-14 19:48:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:48:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:48:59,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:04,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:49:04,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1718 [2020-10-14 19:49:04,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:49:04,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5297 [2020-10-14 19:49:04,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:49:04,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:49:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 19:49:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:49:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1712 [2020-10-14 19:49:04,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:49:05,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:49:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:49:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:05,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:49:05,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:49:05,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:49:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:49:05,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:49:05,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:49:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:49:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:49:05,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:49:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:49:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:49:08,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483328498] [2020-10-14 19:49:08,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:49:08,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:49:08,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339816961] [2020-10-14 19:49:08,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:49:08,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:49:08,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:49:08,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:49:08,162 INFO L87 Difference]: Start difference. First operand 2222 states. Second operand 4 states. [2020-10-14 19:49:24,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:49:24,518 INFO L93 Difference]: Finished difference Result 6360 states and 11961 transitions. [2020-10-14 19:49:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:49:24,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1696 [2020-10-14 19:49:24,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:49:24,593 INFO L225 Difference]: With dead ends: 6360 [2020-10-14 19:49:24,594 INFO L226 Difference]: Without dead ends: 4074 [2020-10-14 19:49:24,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:49:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4074 states. [2020-10-14 19:49:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4074 to 4004. [2020-10-14 19:49:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4004 states. [2020-10-14 19:49:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 6504 transitions. [2020-10-14 19:49:24,839 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 6504 transitions. Word has length 1696 [2020-10-14 19:49:24,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:49:24,843 INFO L479 AbstractCegarLoop]: Abstraction has 4004 states and 6504 transitions. [2020-10-14 19:49:24,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:49:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 6504 transitions. [2020-10-14 19:49:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1708 [2020-10-14 19:49:24,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:49:24,917 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:49:24,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:49:24,918 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:49:24,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:49:24,919 INFO L82 PathProgramCache]: Analyzing trace with hash -2104388934, now seen corresponding path program 1 times [2020-10-14 19:49:24,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:49:24,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155258810] [2020-10-14 19:49:24,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:49:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:49:25,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:26,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:30,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:49:30,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1731 [2020-10-14 19:49:30,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:49:30,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5259 [2020-10-14 19:49:30,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:49:30,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:49:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 19:49:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:49:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1709 [2020-10-14 19:49:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:49:32,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:49:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:49:32,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:32,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:49:32,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:49:32,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:49:32,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:49:32,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:49:32,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:49:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:49:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:49:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:49:32,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:49:32,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:49:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:49:32,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:32,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:49:32,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:49:32,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:49:32,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 19:49:32,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:49:32,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:49:32,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:49:32,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:49:32,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:49:32,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:49:34,846 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:49:34,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155258810] [2020-10-14 19:49:34,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:49:34,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:49:34,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025319660] [2020-10-14 19:49:34,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:49:34,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:49:34,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:49:34,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:49:34,853 INFO L87 Difference]: Start difference. First operand 4004 states and 6504 transitions. Second operand 5 states. [2020-10-14 19:49:54,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:49:54,467 INFO L93 Difference]: Finished difference Result 11631 states and 19055 transitions. [2020-10-14 19:49:54,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:49:54,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1707 [2020-10-14 19:49:54,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:49:54,515 INFO L225 Difference]: With dead ends: 11631 [2020-10-14 19:49:54,516 INFO L226 Difference]: Without dead ends: 7633 [2020-10-14 19:49:54,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:49:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2020-10-14 19:49:54,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7603. [2020-10-14 19:49:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7603 states. [2020-10-14 19:49:54,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7603 states to 7603 states and 10950 transitions. [2020-10-14 19:49:54,789 INFO L78 Accepts]: Start accepts. Automaton has 7603 states and 10950 transitions. Word has length 1707 [2020-10-14 19:49:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:49:54,794 INFO L479 AbstractCegarLoop]: Abstraction has 7603 states and 10950 transitions. [2020-10-14 19:49:54,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:49:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 7603 states and 10950 transitions. [2020-10-14 19:49:54,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1723 [2020-10-14 19:49:54,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:49:54,969 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:49:54,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:49:54,970 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:49:54,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:49:54,971 INFO L82 PathProgramCache]: Analyzing trace with hash 870877178, now seen corresponding path program 1 times [2020-10-14 19:49:54,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:49:54,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299862269] [2020-10-14 19:49:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:49:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:49:55,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:55,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:56,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:00,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:00,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1748 [2020-10-14 19:50:00,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:50:00,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-14 19:50:00,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:00,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 19:50:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-14 19:50:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1294 [2020-10-14 19:50:00,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:06,650 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2020-10-14 19:50:06,808 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 31 [2020-10-14 19:50:06,951 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 31 [2020-10-14 19:50:07,091 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-10-14 19:50:07,238 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-10-14 19:50:07,879 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 34 [2020-10-14 19:50:08,052 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2020-10-14 19:50:08,206 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2020-10-14 19:50:08,377 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 36 [2020-10-14 19:50:08,597 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-14 19:50:08,755 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2020-10-14 19:50:08,935 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-14 19:50:09,116 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2020-10-14 19:50:09,333 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 36 [2020-10-14 19:50:09,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:50:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:09,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:09,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:09,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:50:09,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:09,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:50:09,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:09,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:50:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:50:09,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:50:09,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:50:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:09,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:09,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:09,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:50:09,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:09,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:50:09,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:09,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:09,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:50:09,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:09,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:50:09,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:50:09,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:50:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:09,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:09,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:09,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:50:09,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 19:50:09,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:09,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:50:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 19:50:09,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 19:50:28,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299862269] [2020-10-14 19:50:28,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:50:28,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 19:50:28,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99303856] [2020-10-14 19:50:28,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 19:50:28,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:50:28,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 19:50:28,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2020-10-14 19:50:28,562 INFO L87 Difference]: Start difference. First operand 7603 states and 10950 transitions. Second operand 23 states. [2020-10-14 19:50:47,472 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-14 19:51:00,442 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-14 19:51:02,246 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-14 19:51:06,401 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-14 19:51:06,576 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-14 19:51:08,117 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2020-10-14 19:51:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:51:18,596 INFO L93 Difference]: Finished difference Result 16513 states and 24534 transitions. [2020-10-14 19:51:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 19:51:18,598 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1722 [2020-10-14 19:51:18,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:51:18,639 INFO L225 Difference]: With dead ends: 16513 [2020-10-14 19:51:18,639 INFO L226 Difference]: Without dead ends: 8916 [2020-10-14 19:51:18,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=212, Invalid=1428, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 19:51:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8916 states. [2020-10-14 19:51:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8916 to 8889. [2020-10-14 19:51:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8889 states. [2020-10-14 19:51:18,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8889 states to 8889 states and 12261 transitions. [2020-10-14 19:51:18,857 INFO L78 Accepts]: Start accepts. Automaton has 8889 states and 12261 transitions. Word has length 1722 [2020-10-14 19:51:18,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:51:18,860 INFO L479 AbstractCegarLoop]: Abstraction has 8889 states and 12261 transitions. [2020-10-14 19:51:18,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 19:51:18,860 INFO L276 IsEmpty]: Start isEmpty. Operand 8889 states and 12261 transitions. [2020-10-14 19:51:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1723 [2020-10-14 19:51:18,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:51:18,915 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:51:18,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:51:18,915 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:51:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:51:18,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1905114046, now seen corresponding path program 1 times [2020-10-14 19:51:18,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:51:18,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685880947] [2020-10-14 19:51:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:51:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:51:19,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:19,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:19,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:24,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:51:24,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1746 [2020-10-14 19:51:24,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:51:24,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 19:51:24,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:51:24,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:51:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 19:51:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 19:51:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1710 [2020-10-14 19:51:24,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:51:24,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:51:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:51:24,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:24,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:51:24,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:51:25,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:51:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:51:25,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:51:25,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:51:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:51:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:51:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:51:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:51:25,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:51:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:51:25,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:25,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:51:25,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:51:25,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 19:51:25,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:51:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 19:51:25,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:51:25,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:51:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:51:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:51:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 19:51:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:51:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:51:27,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685880947] [2020-10-14 19:51:27,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:51:27,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:51:27,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102746434] [2020-10-14 19:51:27,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 19:51:27,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:51:27,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 19:51:27,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:51:27,740 INFO L87 Difference]: Start difference. First operand 8889 states and 12261 transitions. Second operand 6 states. [2020-10-14 19:52:00,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:52:00,009 INFO L93 Difference]: Finished difference Result 31870 states and 45918 transitions. [2020-10-14 19:52:00,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:52:00,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1722 [2020-10-14 19:52:00,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:52:00,101 INFO L225 Difference]: With dead ends: 31870 [2020-10-14 19:52:00,101 INFO L226 Difference]: Without dead ends: 22987 [2020-10-14 19:52:00,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:52:00,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22987 states. [2020-10-14 19:52:00,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22987 to 22934. [2020-10-14 19:52:00,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22934 states. [2020-10-14 19:52:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22934 states to 22934 states and 31786 transitions. [2020-10-14 19:52:00,610 INFO L78 Accepts]: Start accepts. Automaton has 22934 states and 31786 transitions. Word has length 1722 [2020-10-14 19:52:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:52:00,611 INFO L479 AbstractCegarLoop]: Abstraction has 22934 states and 31786 transitions. [2020-10-14 19:52:00,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 19:52:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 22934 states and 31786 transitions. [2020-10-14 19:52:00,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1778 [2020-10-14 19:52:00,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:52:00,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:52:00,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:52:00,714 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:52:00,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:52:00,719 INFO L82 PathProgramCache]: Analyzing trace with hash 904445960, now seen corresponding path program 1 times [2020-10-14 19:52:00,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:52:00,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276584899] [2020-10-14 19:52:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:52:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:00,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:00,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:01,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:02,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:02,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:05,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:05,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1803 [2020-10-14 19:52:05,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:52:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-14 19:52:05,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:05,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 19:52:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-14 19:52:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1279 [2020-10-14 19:52:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:52:10,009 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-14 19:52:10,173 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-10-14 19:52:10,332 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-10-14 19:52:10,486 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-10-14 19:52:10,647 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-14 19:52:10,796 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-14 19:52:10,959 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-14 19:52:11,124 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-14 19:52:11,285 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-14 19:52:11,573 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-14 19:52:11,742 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-14 19:52:11,896 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2020-10-14 19:52:12,096 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-10-14 19:52:12,286 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-10-14 19:52:12,517 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 39 [2020-10-14 19:52:13,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:52:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:13,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:13,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:13,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:52:13,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:52:13,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:52:13,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:13,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:13,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:52:13,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:52:13,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:52:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:52:13,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:52:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:13,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:13,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:13,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:13,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 19:52:13,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:52:13,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 19:52:13,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:13,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:52:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-14 19:52:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:52:13,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:52:13,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 19:52:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:13,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:13,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:13,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 19:52:13,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:52:13,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 19:52:13,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:13,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 19:52:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:52:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 19:52:13,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0