/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_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:49:05,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:49:05,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:49:05,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:49:05,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:49:05,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:49:05,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:49:05,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:49:05,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:49:05,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:49:05,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:49:05,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:49:05,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:49:05,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:49:05,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:49:05,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:49:05,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:49:05,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:49:05,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:49:05,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:49:06,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:49:06,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:49:06,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:49:06,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:49:06,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:49:06,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:49:06,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:49:06,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:49:06,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:49:06,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:49:06,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:49:06,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:49:06,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:49:06,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:49:06,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:49:06,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:49:06,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:49:06,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:49:06,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:49:06,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:49:06,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:49:06,027 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 19:49:06,053 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:49:06,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:49:06,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:49:06,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:49:06,055 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:49:06,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:49:06,055 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:49:06,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:49:06,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:49:06,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:49:06,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:49:06,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:49:06,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:49:06,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:49:06,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:49:06,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:49:06,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:49:06,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:49:06,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:49:06,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:49:06,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:49:06,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:49:06,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:49:06,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:49:06,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:49:06,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:49:06,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:49:06,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:49:06,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:49:06,060 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 19:49:06,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:49:06,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:49:06,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:49:06,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:49:06,391 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:49:06,392 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label57.c [2020-10-14 19:49:06,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bd8f7af5/1394b0fa84514330ad348f1405aee1c8/FLAG925d7bba1 [2020-10-14 19:49:07,453 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:49:07,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label57.c [2020-10-14 19:49:07,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bd8f7af5/1394b0fa84514330ad348f1405aee1c8/FLAG925d7bba1 [2020-10-14 19:49:07,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bd8f7af5/1394b0fa84514330ad348f1405aee1c8 [2020-10-14 19:49:07,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:49:07,841 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:49:07,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:49:07,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:49:07,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:49:07,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:07" (1/1) ... [2020-10-14 19:49:07,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50be01d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:07, skipping insertion in model container [2020-10-14 19:49:07,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:07" (1/1) ... [2020-10-14 19:49:07,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:49:08,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:49:10,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:49:10,953 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:49:12,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:49:12,132 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:49:12,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12 WrapperNode [2020-10-14 19:49:12,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:49:12,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:49:12,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:49:12,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:49:12,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (1/1) ... [2020-10-14 19:49:12,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (1/1) ... [2020-10-14 19:49:12,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (1/1) ... [2020-10-14 19:49:12,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (1/1) ... [2020-10-14 19:49:12,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (1/1) ... [2020-10-14 19:49:12,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (1/1) ... [2020-10-14 19:49:12,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (1/1) ... [2020-10-14 19:49:12,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:49:12,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:49:12,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:49:12,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:49:12,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (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 19:49:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 19:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 19:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 19:49:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 19:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-14 19:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-14 19:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-14 19:49:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 19:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 19:49:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 19:49:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 19:49:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-14 19:49:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-14 19:49:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-14 19:49:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:49:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:49:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:49:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:49:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:49:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:49:21,764 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:49:21,764 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:49:21,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:49:21 BoogieIcfgContainer [2020-10-14 19:49:21,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:49:21,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:49:21,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:49:21,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:49:21,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:49:07" (1/3) ... [2020-10-14 19:49:21,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c79390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:49:21, skipping insertion in model container [2020-10-14 19:49:21,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:12" (2/3) ... [2020-10-14 19:49:21,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c79390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:49:21, skipping insertion in model container [2020-10-14 19:49:21,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:49:21" (3/3) ... [2020-10-14 19:49:21,785 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem05_label57.c [2020-10-14 19:49:21,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:49:21,805 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:49:21,819 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:49:21,855 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:49:21,856 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:49:21,856 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:49:21,856 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:49:21,856 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:49:21,856 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:49:21,856 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:49:21,856 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:49:21,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states. [2020-10-14 19:49:22,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1655 [2020-10-14 19:49:22,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:49:22,018 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] [2020-10-14 19:49:22,019 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:49:22,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:49:22,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1644649951, now seen corresponding path program 1 times [2020-10-14 19:49:22,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:49:22,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547162409] [2020-10-14 19:49:22,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:49:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:49:23,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:28,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:49:28,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1676 [2020-10-14 19:49:28,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:49:28,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5246 [2020-10-14 19:49:28,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:49:28,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:49:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 19:49:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:49:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1670 [2020-10-14 19:49:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:49:29,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:49:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:49:29,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:49:29,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:49:29,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:49:29,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:49:29,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 19:49:29,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:49:29,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:49:29,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:49:29,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:49:29,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:49:29,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:49:33,058 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 19:49:33,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547162409] [2020-10-14 19:49:33,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:49:33,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 19:49:33,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602449366] [2020-10-14 19:49:33,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:49:33,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:49:33,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:49:33,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:49:33,085 INFO L87 Difference]: Start difference. First operand 2222 states. Second operand 5 states. [2020-10-14 19:50:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:50:01,746 INFO L93 Difference]: Finished difference Result 8279 states and 15699 transitions. [2020-10-14 19:50:01,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:50:01,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1654 [2020-10-14 19:50:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:50:01,817 INFO L225 Difference]: With dead ends: 8279 [2020-10-14 19:50:01,818 INFO L226 Difference]: Without dead ends: 5989 [2020-10-14 19:50:01,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:50:01,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2020-10-14 19:50:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 5833. [2020-10-14 19:50:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5833 states. [2020-10-14 19:50:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 10149 transitions. [2020-10-14 19:50:02,122 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 10149 transitions. Word has length 1654 [2020-10-14 19:50:02,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:50:02,128 INFO L479 AbstractCegarLoop]: Abstraction has 5833 states and 10149 transitions. [2020-10-14 19:50:02,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:50:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 10149 transitions. [2020-10-14 19:50:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1688 [2020-10-14 19:50:02,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:50:02,236 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 19:50:02,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:50:02,237 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:50:02,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:50:02,238 INFO L82 PathProgramCache]: Analyzing trace with hash 550088699, now seen corresponding path program 1 times [2020-10-14 19:50:02,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:50:02,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289574121] [2020-10-14 19:50:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:50:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:02,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:02,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:06,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:07,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:07,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1713 [2020-10-14 19:50:07,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:50:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 19:50:07,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:07,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:07,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:50:07,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:50:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 19:50:07,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:50:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:50:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:08,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:08,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:08,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:50:08,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:08,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 19:50:08,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:08,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:08,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:50:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:50:08,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 19:50:08,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:50:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:08,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:08,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:08,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:08,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 19:50:08,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:50:08,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:50:08,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:08,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:50:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:50:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 19:50:08,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:50:08,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 19:50:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:08,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:08,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:08,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 19:50:08,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:08,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 19:50:08,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:08,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:50:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:50:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 19:50:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:10,677 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 19:50:10,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289574121] [2020-10-14 19:50:10,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:50:10,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:50:10,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397800956] [2020-10-14 19:50:10,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:50:10,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:50:10,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:50:10,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:50:10,684 INFO L87 Difference]: Start difference. First operand 5833 states and 10149 transitions. Second operand 8 states. [2020-10-14 19:50:38,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:50:38,720 INFO L93 Difference]: Finished difference Result 17487 states and 31081 transitions. [2020-10-14 19:50:38,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 19:50:38,721 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1687 [2020-10-14 19:50:38,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:50:38,784 INFO L225 Difference]: With dead ends: 17487 [2020-10-14 19:50:38,785 INFO L226 Difference]: Without dead ends: 11660 [2020-10-14 19:50:38,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:50:38,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11660 states. [2020-10-14 19:50:39,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11660 to 11300. [2020-10-14 19:50:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11300 states. [2020-10-14 19:50:39,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11300 states to 11300 states and 17734 transitions. [2020-10-14 19:50:39,119 INFO L78 Accepts]: Start accepts. Automaton has 11300 states and 17734 transitions. Word has length 1687 [2020-10-14 19:50:39,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:50:39,120 INFO L479 AbstractCegarLoop]: Abstraction has 11300 states and 17734 transitions. [2020-10-14 19:50:39,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:50:39,120 INFO L276 IsEmpty]: Start isEmpty. Operand 11300 states and 17734 transitions. [2020-10-14 19:50:39,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1693 [2020-10-14 19:50:39,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:50:39,215 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, 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, 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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] [2020-10-14 19:50:39,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:50:39,216 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:50:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:50:39,217 INFO L82 PathProgramCache]: Analyzing trace with hash -750656899, now seen corresponding path program 1 times [2020-10-14 19:50:39,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:50:39,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212196592] [2020-10-14 19:50:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:50:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:39,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:39,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:42,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:44,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:44,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1716 [2020-10-14 19:50:44,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:50:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 19:50:44,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:44,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 19:50:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:50:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1316 [2020-10-14 19:50:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:46,742 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2020-10-14 19:50:47,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:50:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:47,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:47,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:47,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:50:47,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:50:47,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:50:47,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:47,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:50:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:50:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:50:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:50:47,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:50:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:50:47,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:47,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:47,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:50:47,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:50:47,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:50:47,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:50:47,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 19:50:47,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:50:47,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:50:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:50:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:50:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 19:50:47,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 19:51:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:51:02,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212196592] [2020-10-14 19:51:02,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:51:02,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 19:51:02,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645785802] [2020-10-14 19:51:02,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 19:51:02,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:51:02,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 19:51:02,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2020-10-14 19:51:02,124 INFO L87 Difference]: Start difference. First operand 11300 states and 17734 transitions. Second operand 26 states. [2020-10-14 19:51:04,440 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-14 19:51:28,090 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-14 19:52:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:52:28,594 INFO L93 Difference]: Finished difference Result 30173 states and 48049 transitions. [2020-10-14 19:52:28,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 19:52:28,595 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 1692 [2020-10-14 19:52:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:52:28,701 INFO L225 Difference]: With dead ends: 30173 [2020-10-14 19:52:28,701 INFO L226 Difference]: Without dead ends: 18879 [2020-10-14 19:52:28,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=390, Invalid=2366, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 19:52:28,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18879 states. [2020-10-14 19:52:29,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18879 to 18179. [2020-10-14 19:52:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18179 states. [2020-10-14 19:52:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18179 states to 18179 states and 25694 transitions. [2020-10-14 19:52:29,219 INFO L78 Accepts]: Start accepts. Automaton has 18179 states and 25694 transitions. Word has length 1692 [2020-10-14 19:52:29,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:52:29,219 INFO L479 AbstractCegarLoop]: Abstraction has 18179 states and 25694 transitions. [2020-10-14 19:52:29,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 19:52:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 18179 states and 25694 transitions. [2020-10-14 19:52:29,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1707 [2020-10-14 19:52:29,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:52:29,301 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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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] [2020-10-14 19:52:29,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:52:29,301 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:52:29,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:52:29,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1259196533, now seen corresponding path program 1 times [2020-10-14 19:52:29,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:52:29,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146831168] [2020-10-14 19:52:29,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:52:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:29,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:29,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:34,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:34,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:34,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1732 [2020-10-14 19:52:34,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:52:34,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5202 [2020-10-14 19:52:34,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:34,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 19:52:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 19:52:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1435 [2020-10-14 19:52:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:52:41,717 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-10-14 19:52:41,876 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-10-14 19:52:42,031 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-10-14 19:52:42,180 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-10-14 19:52:42,332 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-10-14 19:52:42,467 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2020-10-14 19:52:42,683 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-14 19:52:42,910 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-14 19:52:43,241 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 41 [2020-10-14 19:52:43,560 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 40 [2020-10-14 19:52:43,799 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-10-14 19:52:44,044 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2020-10-14 19:52:44,274 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-10-14 19:52:44,554 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 31 [2020-10-14 19:52:45,086 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-10-14 19:52:45,254 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-10-14 19:52:45,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:52:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:45,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:45,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:45,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:52:45,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:52:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:52:45,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:45,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:52:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:52:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:52:45,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:52:45,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:52:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:45,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:45,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:45,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 19:52:45,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:52:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 19:52:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:45,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:52:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:52:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 19:52:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:52:45,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 19:52:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:52:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:45,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:45,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:52:45,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:52:45,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:52:45,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:52:45,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 19:52:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:52:45,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:52:45,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:52:45,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:52:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 19:52:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1