/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:20:43,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:20:43,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:20:43,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:20:43,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:20:43,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:20:43,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:20:43,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:20:43,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:20:43,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:20:43,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:20:43,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:20:43,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:20:43,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:20:43,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:20:43,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:20:43,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:20:43,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:20:43,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:20:43,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:20:43,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:20:43,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:20:43,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:20:43,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:20:43,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:20:43,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:20:43,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:20:43,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:20:43,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:20:43,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:20:43,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:20:43,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:20:43,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:20:43,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:20:43,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:20:43,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:20:43,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:20:43,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:20:43,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:20:43,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:20:43,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:20:43,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:20:44,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:20:44,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:20:44,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:20:44,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:20:44,027 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:20:44,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:20:44,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:20:44,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:20:44,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:20:44,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:20:44,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:20:44,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:20:44,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:20:44,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:20:44,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:20:44,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:20:44,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:20:44,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:20:44,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:20:44,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:20:44,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:20:44,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:20:44,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:20:44,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:20:44,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:20:44,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:20:44,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:20:44,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:20:44,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:20:44,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:20:44,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:20:44,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:20:44,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:20:44,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:20:44,533 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:20:44,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-09-25 11:20:44,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97b55c553/c7a537fe17724c1e96067bdc1d503dd8/FLAG19ddde129 [2020-09-25 11:20:45,306 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:20:45,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-09-25 11:20:45,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97b55c553/c7a537fe17724c1e96067bdc1d503dd8/FLAG19ddde129 [2020-09-25 11:20:45,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97b55c553/c7a537fe17724c1e96067bdc1d503dd8 [2020-09-25 11:20:45,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:20:45,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:20:45,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:20:45,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:20:45,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:20:45,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:20:45" (1/1) ... [2020-09-25 11:20:45,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc2478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:45, skipping insertion in model container [2020-09-25 11:20:45,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:20:45" (1/1) ... [2020-09-25 11:20:45,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:20:45,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:20:46,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:20:46,309 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:20:46,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:20:46,465 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:20:46,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46 WrapperNode [2020-09-25 11:20:46,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:20:46,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:20:46,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:20:46,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:20:46,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... [2020-09-25 11:20:46,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... [2020-09-25 11:20:46,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... [2020-09-25 11:20:46,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... [2020-09-25 11:20:46,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... [2020-09-25 11:20:46,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... [2020-09-25 11:20:46,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... [2020-09-25 11:20:46,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:20:46,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:20:46,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:20:46,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:20:46,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:20:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:20:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:20:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 11:20:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:20:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 11:20:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:20:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:20:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:20:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:20:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:20:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:20:48,413 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:20:48,413 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:20:48,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:20:48 BoogieIcfgContainer [2020-09-25 11:20:48,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:20:48,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:20:48,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:20:48,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:20:48,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:20:45" (1/3) ... [2020-09-25 11:20:48,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744ea170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:20:48, skipping insertion in model container [2020-09-25 11:20:48,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:46" (2/3) ... [2020-09-25 11:20:48,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744ea170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:20:48, skipping insertion in model container [2020-09-25 11:20:48,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:20:48" (3/3) ... [2020-09-25 11:20:48,434 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-09-25 11:20:48,446 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:20:48,457 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:20:48,479 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:20:48,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:20:48,518 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:20:48,518 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:20:48,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:20:48,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:20:48,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:20:48,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:20:48,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:20:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-09-25 11:20:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 11:20:48,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:48,566 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] [2020-09-25 11:20:48,567 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:48,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:48,575 INFO L82 PathProgramCache]: Analyzing trace with hash -496136462, now seen corresponding path program 1 times [2020-09-25 11:20:48,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:48,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455345530] [2020-09-25 11:20:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:49,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:49,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:49,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:49,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 11:20:49,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:20:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1114 [2020-09-25 11:20:49,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:49,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:20:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 11:20:49,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 11:20:49,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:20:50,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:50,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:50,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:50,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:20:50,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:20:50,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:50,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:20:50,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:20:50,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:20:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:20:50,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455345530] [2020-09-25 11:20:50,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:50,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:20:50,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013831306] [2020-09-25 11:20:50,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:20:50,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:50,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:20:50,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:20:50,186 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 5 states. [2020-09-25 11:20:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:53,879 INFO L93 Difference]: Finished difference Result 1766 states and 2493 transitions. [2020-09-25 11:20:53,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:20:53,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-09-25 11:20:53,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:53,912 INFO L225 Difference]: With dead ends: 1766 [2020-09-25 11:20:53,912 INFO L226 Difference]: Without dead ends: 1025 [2020-09-25 11:20:53,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:20:53,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2020-09-25 11:20:54,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 995. [2020-09-25 11:20:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-25 11:20:54,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1343 transitions. [2020-09-25 11:20:54,071 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1343 transitions. Word has length 69 [2020-09-25 11:20:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:54,072 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1343 transitions. [2020-09-25 11:20:54,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:20:54,073 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1343 transitions. [2020-09-25 11:20:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 11:20:54,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:54,084 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, 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] [2020-09-25 11:20:54,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:20:54,085 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:54,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:54,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1110466945, now seen corresponding path program 1 times [2020-09-25 11:20:54,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:54,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345992636] [2020-09-25 11:20:54,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:54,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:54,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:54,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:57,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:59,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:59,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-25 11:20:59,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:20:59,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:20:59,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:59,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:20:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 11:20:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 11:20:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:59,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:59,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:59,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:20:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:20:59,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:59,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:20:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:20:59,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:59,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:20:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:59,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:59,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:59,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 11:20:59,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:59,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 11:20:59,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:59,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:59,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:20:59,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:20:59,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 11:20:59,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:20:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:20:59,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345992636] [2020-09-25 11:20:59,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:59,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 11:20:59,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425123858] [2020-09-25 11:20:59,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:20:59,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:59,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:20:59,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:20:59,622 INFO L87 Difference]: Start difference. First operand 995 states and 1343 transitions. Second operand 7 states. [2020-09-25 11:21:02,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:21:02,110 INFO L93 Difference]: Finished difference Result 2212 states and 3054 transitions. [2020-09-25 11:21:02,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:21:02,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-09-25 11:21:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:21:02,120 INFO L225 Difference]: With dead ends: 2212 [2020-09-25 11:21:02,121 INFO L226 Difference]: Without dead ends: 1232 [2020-09-25 11:21:02,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:21:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2020-09-25 11:21:02,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1005. [2020-09-25 11:21:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2020-09-25 11:21:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1300 transitions. [2020-09-25 11:21:02,186 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1300 transitions. Word has length 153 [2020-09-25 11:21:02,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:21:02,189 INFO L479 AbstractCegarLoop]: Abstraction has 1005 states and 1300 transitions. [2020-09-25 11:21:02,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:21:02,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1300 transitions. [2020-09-25 11:21:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 11:21:02,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:21:02,211 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, 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, 3, 3, 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] [2020-09-25 11:21:02,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:21:02,212 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:21:02,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:21:02,212 INFO L82 PathProgramCache]: Analyzing trace with hash -285764051, now seen corresponding path program 1 times [2020-09-25 11:21:02,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:21:02,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389642637] [2020-09-25 11:21:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:21:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:02,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:02,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:02,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:02,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:04,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:04,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:05,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:06,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:07,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:07,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:07,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 11:21:07,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 11:21:07,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 11:21:07,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:07,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:21:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:21:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 11:21:07,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:21:07,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:21:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:07,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:07,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:07,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:21:07,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:07,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 11:21:07,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:07,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:07,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:21:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:21:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 11:21:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:21:07,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:21:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:07,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:07,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:07,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:07,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 11:21:07,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:21:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 11:21:07,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:07,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:21:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:21:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 11:21:07,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:21:07,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:21:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:07,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:07,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:07,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 11:21:07,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 11:21:07,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:07,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:21:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:21:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 11:21:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:21:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 171 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:21:08,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389642637] [2020-09-25 11:21:08,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:21:08,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:21:08,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278294700] [2020-09-25 11:21:08,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:21:08,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:21:08,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:21:08,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:21:08,041 INFO L87 Difference]: Start difference. First operand 1005 states and 1300 transitions. Second operand 10 states. [2020-09-25 11:21:15,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:21:15,732 INFO L93 Difference]: Finished difference Result 4948 states and 7129 transitions. [2020-09-25 11:21:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 11:21:15,734 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2020-09-25 11:21:15,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:21:15,767 INFO L225 Difference]: With dead ends: 4948 [2020-09-25 11:21:15,767 INFO L226 Difference]: Without dead ends: 3958 [2020-09-25 11:21:15,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2020-09-25 11:21:15,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2020-09-25 11:21:15,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3451. [2020-09-25 11:21:15,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3451 states. [2020-09-25 11:21:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 4561 transitions. [2020-09-25 11:21:15,937 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 4561 transitions. Word has length 232 [2020-09-25 11:21:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:21:15,938 INFO L479 AbstractCegarLoop]: Abstraction has 3451 states and 4561 transitions. [2020-09-25 11:21:15,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:21:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 4561 transitions. [2020-09-25 11:21:15,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-09-25 11:21:15,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:21:15,951 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:21:15,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:21:15,951 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:21:15,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:21:15,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1026767537, now seen corresponding path program 1 times [2020-09-25 11:21:15,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:21:15,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38607044] [2020-09-25 11:21:15,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:21:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:16,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:16,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:17,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:18,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:19,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:20,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:21,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:21,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-09-25 11:21:21,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:21:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 11:21:21,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:21,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:21:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:21:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-09-25 11:21:21,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:21:21,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:21:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:21,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:21,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:21:21,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:21:21,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:21,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:21:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:21:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 11:21:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:21:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:21:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:21,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:21,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:21:21,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 11:21:21,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:21,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:21:21,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:21:21,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:21:21,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:21:21,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:21:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:21,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:22,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:22,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-25 11:21:22,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:22,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-09-25 11:21:22,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:22,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:22,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:21:22,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:21:22,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-09-25 11:21:22,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:21:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 11:21:22,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38607044] [2020-09-25 11:21:22,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:21:22,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 11:21:22,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143995786] [2020-09-25 11:21:22,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:21:22,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:21:22,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:21:22,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:21:22,505 INFO L87 Difference]: Start difference. First operand 3451 states and 4561 transitions. Second operand 9 states. [2020-09-25 11:21:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:21:27,926 INFO L93 Difference]: Finished difference Result 8812 states and 11684 transitions. [2020-09-25 11:21:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 11:21:27,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 340 [2020-09-25 11:21:27,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:21:27,961 INFO L225 Difference]: With dead ends: 8812 [2020-09-25 11:21:27,962 INFO L226 Difference]: Without dead ends: 5376 [2020-09-25 11:21:27,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:21:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5376 states. [2020-09-25 11:21:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5376 to 3944. [2020-09-25 11:21:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2020-09-25 11:21:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5157 transitions. [2020-09-25 11:21:28,115 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5157 transitions. Word has length 340 [2020-09-25 11:21:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:21:28,117 INFO L479 AbstractCegarLoop]: Abstraction has 3944 states and 5157 transitions. [2020-09-25 11:21:28,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:21:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5157 transitions. [2020-09-25 11:21:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-09-25 11:21:28,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:21:28,130 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 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] [2020-09-25 11:21:28,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:21:28,131 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:21:28,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:21:28,131 INFO L82 PathProgramCache]: Analyzing trace with hash 418484426, now seen corresponding path program 1 times [2020-09-25 11:21:28,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:21:28,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795139879] [2020-09-25 11:21:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:21:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:28,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:28,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:28,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:28,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:30,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:30,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:30,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:31,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:33,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:33,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 374 [2020-09-25 11:21:33,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 11:21:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 11:21:33,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:33,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:21:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:21:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 208 [2020-09-25 11:21:33,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:21:33,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:21:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:33,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:33,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:21:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:21:33,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:33,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:21:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:21:33,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 11:21:33,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:21:33,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 11:21:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:33,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:33,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:33,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:21:33,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:33,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 11:21:33,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:33,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:33,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:21:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:21:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:21:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:21:33,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:21:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:21:33,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:21:33,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:21:33,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 11:21:33,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:21:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 11:21:33,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:21:33,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:21:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:21:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:21:33,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 11:21:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1