/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:18:54,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:18:54,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:18:54,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:18:54,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:18:54,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:18:54,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:18:54,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:18:54,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:18:54,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:18:54,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:18:54,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:18:54,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:18:54,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:18:54,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:18:54,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:18:54,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:18:54,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:18:54,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:18:54,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:18:54,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:18:54,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:18:54,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:18:54,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:18:54,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:18:54,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:18:54,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:18:54,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:18:54,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:18:54,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:18:54,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:18:54,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:18:54,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:18:54,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:18:54,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:18:54,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:18:54,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:18:54,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:18:54,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:18:54,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:18:54,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:18:54,375 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 01:18:54,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:18:54,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:18:54,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:18:54,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:18:54,422 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:18:54,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:18:54,423 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:18:54,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:18:54,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:18:54,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:18:54,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:18:54,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:18:54,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:18:54,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:18:54,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:18:54,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:18:54,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:18:54,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:18:54,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:18:54,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:18:54,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:18:54,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:18:54,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:18:54,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:18:54,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:18:54,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:18:54,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:18:54,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:18:54,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:18:54,429 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 01:18:54,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:18:54,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:18:54,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:18:54,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:18:54,783 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:18:54,784 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label23.c [2020-10-14 01:18:54,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f2c1fe75/c07e0881db404dccb2e55c765d224392/FLAG9dd60e342 [2020-10-14 01:18:55,807 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:18:55,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label23.c [2020-10-14 01:18:55,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f2c1fe75/c07e0881db404dccb2e55c765d224392/FLAG9dd60e342 [2020-10-14 01:18:56,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f2c1fe75/c07e0881db404dccb2e55c765d224392 [2020-10-14 01:18:56,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:18:56,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:18:56,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:18:56,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:18:56,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:18:56,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:18:56" (1/1) ... [2020-10-14 01:18:56,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722dc2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:18:56, skipping insertion in model container [2020-10-14 01:18:56,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:18:56" (1/1) ... [2020-10-14 01:18:56,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:18:56,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:18:59,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:18:59,230 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:19:00,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:19:00,361 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:19:00,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00 WrapperNode [2020-10-14 01:19:00,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:19:00,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:19:00,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:19:00,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:19:00,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... [2020-10-14 01:19:00,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... [2020-10-14 01:19:00,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... [2020-10-14 01:19:00,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... [2020-10-14 01:19:00,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... [2020-10-14 01:19:00,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... [2020-10-14 01:19:00,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... [2020-10-14 01:19:00,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:19:00,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:19:00,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:19:00,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:19:00,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:19:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:19:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:19:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:19:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:19:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:19:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:19:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 01:19:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-14 01:19:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-14 01:19:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-14 01:19:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:19:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:19:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:19:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:19:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:19:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 01:19:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-14 01:19:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-14 01:19:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-14 01:19:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:19:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:19:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:19:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:19:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:19:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:19:09,250 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:19:09,251 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:19:09,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:19:09 BoogieIcfgContainer [2020-10-14 01:19:09,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:19:09,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:19:09,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:19:09,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:19:09,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:18:56" (1/3) ... [2020-10-14 01:19:09,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193f1992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:19:09, skipping insertion in model container [2020-10-14 01:19:09,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:19:00" (2/3) ... [2020-10-14 01:19:09,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193f1992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:19:09, skipping insertion in model container [2020-10-14 01:19:09,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:19:09" (3/3) ... [2020-10-14 01:19:09,280 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem05_label23.c [2020-10-14 01:19:09,291 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:19:09,301 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:19:09,315 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:19:09,347 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:19:09,348 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:19:09,348 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:19:09,348 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:19:09,348 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:19:09,348 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:19:09,348 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:19:09,349 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:19:09,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states. [2020-10-14 01:19:09,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1690 [2020-10-14 01:19:09,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:19:09,511 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] [2020-10-14 01:19:09,511 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:19:09,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:19:09,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1256896792, now seen corresponding path program 1 times [2020-10-14 01:19:09,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:19:09,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753733404] [2020-10-14 01:19:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:19:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:19:11,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:19:15,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:19:15,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1711 [2020-10-14 01:19:15,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:19:15,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5208 [2020-10-14 01:19:15,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:19:15,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:19:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 01:19:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:19:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1705 [2020-10-14 01:19:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 01:19:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:19:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:19:17,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:19:17,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:19:17,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:19:17,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:19:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 01:19:17,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:19:17,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:19:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:19:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:19:17,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:19:17,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:19:19,883 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 01:19:19,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753733404] [2020-10-14 01:19:19,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:19:19,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 01:19:19,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754138040] [2020-10-14 01:19:19,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:19:19,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:19:19,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:19:19,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:19:19,931 INFO L87 Difference]: Start difference. First operand 2222 states. Second operand 5 states. [2020-10-14 01:19:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:19:45,306 INFO L93 Difference]: Finished difference Result 8234 states and 15615 transitions. [2020-10-14 01:19:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 01:19:45,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1689 [2020-10-14 01:19:45,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:19:45,381 INFO L225 Difference]: With dead ends: 8234 [2020-10-14 01:19:45,382 INFO L226 Difference]: Without dead ends: 5944 [2020-10-14 01:19:45,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:19:45,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2020-10-14 01:19:45,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5825. [2020-10-14 01:19:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5825 states. [2020-10-14 01:19:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5825 states to 5825 states and 10164 transitions. [2020-10-14 01:19:45,649 INFO L78 Accepts]: Start accepts. Automaton has 5825 states and 10164 transitions. Word has length 1689 [2020-10-14 01:19:45,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:19:45,654 INFO L479 AbstractCegarLoop]: Abstraction has 5825 states and 10164 transitions. [2020-10-14 01:19:45,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 01:19:45,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5825 states and 10164 transitions. [2020-10-14 01:19:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2020-10-14 01:19:45,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:19:45,776 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] [2020-10-14 01:19:45,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:19:45,777 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:19:45,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:19:45,779 INFO L82 PathProgramCache]: Analyzing trace with hash 596463325, now seen corresponding path program 1 times [2020-10-14 01:19:45,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:19:45,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150653160] [2020-10-14 01:19:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:19:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:19:45,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:19:46,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:19:50,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:19:50,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1739 [2020-10-14 01:19:50,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:19:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 01:19:50,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:19:50,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:19:50,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:19:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:19:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 01:19:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:19:51,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:19:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:19:51,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:19:51,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:19:51,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:19:51,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:19:51,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:19:51,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:19:51,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:19:51,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:19:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:19:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:19:51,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 01:19:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:19:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:19:51,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:19:52,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:19:52,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:19:52,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:19:52,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 01:19:52,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:19:52,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:19:52,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:19:52,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:19:52,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 01:19:52,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:19:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:19:54,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150653160] [2020-10-14 01:19:54,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:19:54,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:19:54,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792685376] [2020-10-14 01:19:54,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:19:54,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:19:54,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:19:54,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:19:54,193 INFO L87 Difference]: Start difference. First operand 5825 states and 10164 transitions. Second operand 7 states. [2020-10-14 01:20:15,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:20:15,632 INFO L93 Difference]: Finished difference Result 17197 states and 30474 transitions. [2020-10-14 01:20:15,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:20:15,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1715 [2020-10-14 01:20:15,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:20:15,695 INFO L225 Difference]: With dead ends: 17197 [2020-10-14 01:20:15,695 INFO L226 Difference]: Without dead ends: 11378 [2020-10-14 01:20:15,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:20:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2020-10-14 01:20:16,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 11259. [2020-10-14 01:20:16,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11259 states. [2020-10-14 01:20:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11259 states to 11259 states and 17378 transitions. [2020-10-14 01:20:16,027 INFO L78 Accepts]: Start accepts. Automaton has 11259 states and 17378 transitions. Word has length 1715 [2020-10-14 01:20:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:20:16,028 INFO L479 AbstractCegarLoop]: Abstraction has 11259 states and 17378 transitions. [2020-10-14 01:20:16,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:20:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 11259 states and 17378 transitions. [2020-10-14 01:20:16,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1727 [2020-10-14 01:20:16,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:20:16,094 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 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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 01:20:16,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:20:16,095 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:20:16,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:20:16,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2076510892, now seen corresponding path program 1 times [2020-10-14 01:20:16,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:20:16,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900140571] [2020-10-14 01:20:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:20:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:16,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:17,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:21,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:21,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1752 [2020-10-14 01:20:21,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:20:21,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 01:20:21,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:21,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:21,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:20:21,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 01:20:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 01:20:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:20:21,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:20:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:21,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:21,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:21,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:20:21,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:20:21,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:20:21,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:21,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:20:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:20:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:20:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:20:21,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:20:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:21,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:21,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:21,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 01:20:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:20:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 01:20:21,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:21,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:20:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:20:21,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 01:20:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:20:21,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 01:20:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:21,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:21,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:21,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:20:21,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:20:21,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 01:20:21,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:21,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:20:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:20:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 01:20:21,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:20:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:20:23,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900140571] [2020-10-14 01:20:23,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:20:23,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:20:23,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288594125] [2020-10-14 01:20:23,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:20:23,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:20:23,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:20:23,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:20:23,341 INFO L87 Difference]: Start difference. First operand 11259 states and 17378 transitions. Second operand 7 states. [2020-10-14 01:20:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:20:45,877 INFO L93 Difference]: Finished difference Result 33970 states and 54624 transitions. [2020-10-14 01:20:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:20:45,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1726 [2020-10-14 01:20:45,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:20:45,982 INFO L225 Difference]: With dead ends: 33970 [2020-10-14 01:20:45,983 INFO L226 Difference]: Without dead ends: 22717 [2020-10-14 01:20:46,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:20:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22717 states. [2020-10-14 01:20:46,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22717 to 22447. [2020-10-14 01:20:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22447 states. [2020-10-14 01:20:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22447 states to 22447 states and 32752 transitions. [2020-10-14 01:20:46,848 INFO L78 Accepts]: Start accepts. Automaton has 22447 states and 32752 transitions. Word has length 1726 [2020-10-14 01:20:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:20:46,849 INFO L479 AbstractCegarLoop]: Abstraction has 22447 states and 32752 transitions. [2020-10-14 01:20:46,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:20:46,850 INFO L276 IsEmpty]: Start isEmpty. Operand 22447 states and 32752 transitions. [2020-10-14 01:20:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1761 [2020-10-14 01:20:46,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:20:46,962 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, 3, 3, 3, 3, 3, 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, 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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 01:20:46,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:20:46,962 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:20:46,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:20:46,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1602151685, now seen corresponding path program 1 times [2020-10-14 01:20:46,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:20:46,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678042125] [2020-10-14 01:20:46,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:20:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:47,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:47,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:47,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:48,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:51,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:52,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:52,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1786 [2020-10-14 01:20:52,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:20:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 01:20:52,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:52,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:20:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 01:20:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 01:20:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:20:52,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:20:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:52,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:52,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:52,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:20:52,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:20:52,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:20:52,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:52,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:20:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:20:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:20:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:20:52,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:20:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:52,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:52,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:52,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 01:20:52,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:20:52,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 01:20:52,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:52,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:52,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:20:52,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:20:52,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 01:20:52,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:20:52,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 01:20:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:20:52,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:20:52,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:20:52,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:20:52,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:20:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 01:20:52,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:20:52,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:20:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:20:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:20:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 01:20:52,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:20:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:20:53,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678042125] [2020-10-14 01:20:53,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:20:53,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:20:53,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453641683] [2020-10-14 01:20:53,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:20:53,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:20:53,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:20:53,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:20:53,788 INFO L87 Difference]: Start difference. First operand 22447 states and 32752 transitions. Second operand 7 states. [2020-10-14 01:21:15,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:21:15,859 INFO L93 Difference]: Finished difference Result 68764 states and 114463 transitions. [2020-10-14 01:21:15,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:21:15,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1760 [2020-10-14 01:21:15,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:21:16,105 INFO L225 Difference]: With dead ends: 68764 [2020-10-14 01:21:16,105 INFO L226 Difference]: Without dead ends: 46323 [2020-10-14 01:21:16,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:21:16,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46323 states. [2020-10-14 01:21:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46323 to 45458. [2020-10-14 01:21:17,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45458 states. [2020-10-14 01:21:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45458 states to 45458 states and 64361 transitions. [2020-10-14 01:21:17,515 INFO L78 Accepts]: Start accepts. Automaton has 45458 states and 64361 transitions. Word has length 1760 [2020-10-14 01:21:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:21:17,515 INFO L479 AbstractCegarLoop]: Abstraction has 45458 states and 64361 transitions. [2020-10-14 01:21:17,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:21:17,515 INFO L276 IsEmpty]: Start isEmpty. Operand 45458 states and 64361 transitions. [2020-10-14 01:21:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1767 [2020-10-14 01:21:17,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:21:17,699 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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, 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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] [2020-10-14 01:21:17,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:21:17,699 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:21:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:21:17,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1478665188, now seen corresponding path program 1 times [2020-10-14 01:21:17,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:21:17,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036647597] [2020-10-14 01:21:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:21:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:21:17,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:18,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:18,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:22,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:21:22,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1792 [2020-10-14 01:21:22,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 01:21:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-14 01:21:22,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:21:22,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:21:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:21:22,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 01:21:22,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 01:21:22,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:21:23,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:21:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:21:23,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:23,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:21:23,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:21:23,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:21:23,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:21:23,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:21:23,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:21:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:21:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:21:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:21:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:21:23,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:21:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:21:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:23,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:21:23,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 01:21:23,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:21:23,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 01:21:23,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:21:23,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:21:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:21:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:21:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 01:21:23,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:21:23,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 01:21:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:21:23,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:23,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:21:23,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 01:21:23,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:21:23,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 01:21:23,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:21:23,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:21:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:21:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:21:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 01:21:23,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:21:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:21:24,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036647597] [2020-10-14 01:21:24,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:21:24,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:21:24,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693302833] [2020-10-14 01:21:24,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:21:24,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:21:24,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:21:24,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:21:24,920 INFO L87 Difference]: Start difference. First operand 45458 states and 64361 transitions. Second operand 7 states. [2020-10-14 01:21:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:21:51,812 INFO L93 Difference]: Finished difference Result 114218 states and 176453 transitions. [2020-10-14 01:21:51,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:21:51,814 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1766 [2020-10-14 01:21:51,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:21:52,181 INFO L225 Difference]: With dead ends: 114218 [2020-10-14 01:21:52,181 INFO L226 Difference]: Without dead ends: 68766 [2020-10-14 01:21:52,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:21:52,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68766 states. [2020-10-14 01:21:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68766 to 66594. [2020-10-14 01:21:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66594 states. [2020-10-14 01:21:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66594 states to 66594 states and 95629 transitions. [2020-10-14 01:21:55,913 INFO L78 Accepts]: Start accepts. Automaton has 66594 states and 95629 transitions. Word has length 1766 [2020-10-14 01:21:55,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:21:55,914 INFO L479 AbstractCegarLoop]: Abstraction has 66594 states and 95629 transitions. [2020-10-14 01:21:55,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:21:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 66594 states and 95629 transitions. [2020-10-14 01:21:56,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1775 [2020-10-14 01:21:56,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:21:56,101 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-14 01:21:56,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:21:56,101 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:21:56,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:21:56,102 INFO L82 PathProgramCache]: Analyzing trace with hash -910823674, now seen corresponding path program 1 times [2020-10-14 01:21:56,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:21:56,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422569245] [2020-10-14 01:21:56,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:21:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:21:56,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:56,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:56,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:21:57,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:22:01,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:22:01,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1802 [2020-10-14 01:22:01,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:22:01,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 01:22:01,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:22:01,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:22:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:22:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 01:22:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:22:01,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:22:01,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:22:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:22:01,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:22:01,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:22:01,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:22:01,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:22:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:22:01,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:22:01,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:22:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:22:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:22:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:22:01,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:22:01,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:22:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:22:01,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:22:01,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:22:01,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:22:01,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:22:01,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 01:22:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:22:01,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:22:01,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:22:01,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 01:22:01,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:22:01,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:22:01,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:22:01,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:22:01,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:22:01,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 01:22:01,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:22:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:22:01,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 01:22:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:22:01,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:22:01,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:22:01,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:22:01,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:22:01,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:22:01,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:22:01,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:22:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:22:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 01:22:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:22:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:22:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-14 01:22:03,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422569245] [2020-10-14 01:22:03,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:22:03,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 01:22:03,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557417005] [2020-10-14 01:22:03,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 01:22:03,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:22:03,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 01:22:03,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:22:03,121 INFO L87 Difference]: Start difference. First operand 66594 states and 95629 transitions. Second operand 5 states. [2020-10-14 01:22:31,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:22:31,449 INFO L93 Difference]: Finished difference Result 155008 states and 231669 transitions. [2020-10-14 01:22:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:22:31,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1774 [2020-10-14 01:22:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:22:31,767 INFO L225 Difference]: With dead ends: 155008 [2020-10-14 01:22:31,768 INFO L226 Difference]: Without dead ends: 88420 [2020-10-14 01:22:31,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 01:22:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88420 states.