/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=NARROWEST --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/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:50:01,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:50:01,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:50:01,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:50:01,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:50:01,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:50:01,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:50:01,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:50:01,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:50:01,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:50:01,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:50:01,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:50:01,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:50:01,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:50:01,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:50:01,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:50:01,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:50:01,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:50:01,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:50:01,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:50:01,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:50:01,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:50:01,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:50:01,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:50:01,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:50:01,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:50:01,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:50:01,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:50:01,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:50:01,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:50:01,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:50:01,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:50:01,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:50:01,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:50:01,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:50:01,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:50:01,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:50:01,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:50:01,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:50:01,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:50:01,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:50:01,366 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 [2020-10-13 10:50:01,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:50:01,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:50:01,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:50:01,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:50:01,409 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:50:01,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:50:01,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:50:01,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:50:01,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:50:01,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:50:01,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:50:01,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:50:01,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:50:01,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:50:01,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:50:01,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:50:01,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:50:01,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:50:01,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:50:01,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:50:01,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:50:01,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:50:01,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:50:01,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:50:01,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:50:01,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:50:01,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:50:01,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:50:01,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:50:01,417 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:50:01,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:50:01,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:50:01,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:50:01,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:50:01,755 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:50:01,756 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-10-13 10:50:01,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4db234a3e/82c27c04e8844da1a22572eed0167bd3/FLAG7f1b99e13 [2020-10-13 10:50:02,247 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:50:02,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-10-13 10:50:02,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4db234a3e/82c27c04e8844da1a22572eed0167bd3/FLAG7f1b99e13 [2020-10-13 10:50:02,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4db234a3e/82c27c04e8844da1a22572eed0167bd3 [2020-10-13 10:50:02,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:50:02,612 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:50:02,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:50:02,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:50:02,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:50:02,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:02,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02, skipping insertion in model container [2020-10-13 10:50:02,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:02,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:50:02,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:50:02,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:50:02,879 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:50:02,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:50:02,941 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:50:02,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02 WrapperNode [2020-10-13 10:50:02,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:50:02,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:50:02,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:50:02,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:50:03,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:03,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:03,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:03,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:03,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:03,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:03,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (1/1) ... [2020-10-13 10:50:03,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:50:03,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:50:03,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:50:03,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:50:03,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (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 [2020-10-13 10:50:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:50:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:50:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 10:50:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:50:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:50:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:50:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 10:50:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 10:50:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:50:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:50:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:50:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:50:03,578 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:50:03,578 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 10:50:03,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:50:03 BoogieIcfgContainer [2020-10-13 10:50:03,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:50:03,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:50:03,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:50:03,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:50:03,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:50:02" (1/3) ... [2020-10-13 10:50:03,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311705cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:50:03, skipping insertion in model container [2020-10-13 10:50:03,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:02" (2/3) ... [2020-10-13 10:50:03,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311705cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:50:03, skipping insertion in model container [2020-10-13 10:50:03,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:50:03" (3/3) ... [2020-10-13 10:50:03,602 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-10-13 10:50:03,612 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:50:03,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-10-13 10:50:03,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-10-13 10:50:03,665 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:50:03,666 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:50:03,666 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:50:03,666 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:50:03,666 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:50:03,666 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:50:03,667 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:50:03,667 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:50:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-13 10:50:03,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-13 10:50:03,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:03,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:50:03,700 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:03,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:03,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-10-13 10:50:03,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:03,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669976497] [2020-10-13 10:50:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:03,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:03,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 10:50:03,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:03,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 10:50:03,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:50:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 10:50:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:50:03,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:50:04,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:04,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:04,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:04,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:04,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:04,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:50:04,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:04,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:04,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669976497] [2020-10-13 10:50:04,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:04,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:50:04,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558838612] [2020-10-13 10:50:04,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:50:04,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:04,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:50:04,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:50:04,101 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-10-13 10:50:04,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:04,238 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-10-13 10:50:04,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 10:50:04,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-13 10:50:04,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:04,252 INFO L225 Difference]: With dead ends: 93 [2020-10-13 10:50:04,253 INFO L226 Difference]: Without dead ends: 80 [2020-10-13 10:50:04,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:04,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-13 10:50:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-13 10:50:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-13 10:50:04,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-10-13 10:50:04,307 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-10-13 10:50:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:04,308 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-10-13 10:50:04,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:50:04,308 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-10-13 10:50:04,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 10:50:04,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:04,309 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] [2020-10-13 10:50:04,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:50:04,310 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:04,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:04,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-10-13 10:50:04,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:04,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837308647] [2020-10-13 10:50:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:04,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:04,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:04,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:50:04,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:04,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-13 10:50:04,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 10:50:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:04,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:04,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:04,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:04,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:04,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:04,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:50:04,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:04,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:04,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837308647] [2020-10-13 10:50:04,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:04,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:04,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841451433] [2020-10-13 10:50:04,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:04,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:04,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:04,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:04,604 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-10-13 10:50:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:04,931 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2020-10-13 10:50:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:50:04,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-13 10:50:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:04,934 INFO L225 Difference]: With dead ends: 103 [2020-10-13 10:50:04,934 INFO L226 Difference]: Without dead ends: 101 [2020-10-13 10:50:04,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:50:04,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-13 10:50:04,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2020-10-13 10:50:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-13 10:50:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-10-13 10:50:04,949 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-10-13 10:50:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:04,949 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-10-13 10:50:04,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-10-13 10:50:04,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-13 10:50:04,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:04,951 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] [2020-10-13 10:50:04,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:50:04,951 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:04,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:04,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-10-13 10:50:04,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:04,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186983625] [2020-10-13 10:50:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:04,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:05,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:05,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 10:50:05,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:05,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 10:50:05,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 10:50:05,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:05,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:05,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:05,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:05,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:05,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:05,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:50:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:05,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186983625] [2020-10-13 10:50:05,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:05,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:05,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988717368] [2020-10-13 10:50:05,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:05,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:05,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:05,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:05,160 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-10-13 10:50:05,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:05,388 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-10-13 10:50:05,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:05,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-13 10:50:05,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:05,390 INFO L225 Difference]: With dead ends: 101 [2020-10-13 10:50:05,391 INFO L226 Difference]: Without dead ends: 99 [2020-10-13 10:50:05,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:05,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-13 10:50:05,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-10-13 10:50:05,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-13 10:50:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-10-13 10:50:05,414 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-10-13 10:50:05,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:05,415 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-10-13 10:50:05,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-10-13 10:50:05,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 10:50:05,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:05,418 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] [2020-10-13 10:50:05,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:50:05,419 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:05,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:05,419 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-10-13 10:50:05,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:05,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481616540] [2020-10-13 10:50:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:05,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:05,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:05,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:05,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 10:50:05,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-13 10:50:05,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 10:50:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:05,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:05,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:05,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:05,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:05,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:05,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:05,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:50:05,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:05,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481616540] [2020-10-13 10:50:05,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:05,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:05,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248289829] [2020-10-13 10:50:05,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:05,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:05,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:05,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:05,838 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-10-13 10:50:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:05,977 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-10-13 10:50:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:05,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-13 10:50:05,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:05,979 INFO L225 Difference]: With dead ends: 76 [2020-10-13 10:50:05,980 INFO L226 Difference]: Without dead ends: 74 [2020-10-13 10:50:05,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-13 10:50:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-13 10:50:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-13 10:50:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-10-13 10:50:05,989 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-10-13 10:50:05,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:05,989 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-10-13 10:50:05,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:05,990 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-10-13 10:50:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 10:50:05,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:05,991 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] [2020-10-13 10:50:05,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:50:05,991 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:05,992 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-10-13 10:50:05,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:05,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914886937] [2020-10-13 10:50:05,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:06,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:06,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:50:06,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:50:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 10:50:06,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 10:50:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:06,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:06,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:06,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:06,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:06,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914886937] [2020-10-13 10:50:06,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:06,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:06,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908169737] [2020-10-13 10:50:06,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:06,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:06,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:06,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:06,185 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-10-13 10:50:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:06,473 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-10-13 10:50:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:06,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-13 10:50:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:06,477 INFO L225 Difference]: With dead ends: 141 [2020-10-13 10:50:06,478 INFO L226 Difference]: Without dead ends: 139 [2020-10-13 10:50:06,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:06,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-13 10:50:06,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-10-13 10:50:06,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-13 10:50:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-10-13 10:50:06,488 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-10-13 10:50:06,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:06,489 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-10-13 10:50:06,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-10-13 10:50:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 10:50:06,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:06,490 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] [2020-10-13 10:50:06,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:50:06,491 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:06,491 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-10-13 10:50:06,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:06,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783862424] [2020-10-13 10:50:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:06,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:06,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:50:06,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:50:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 10:50:06,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 10:50:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:50:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:06,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:06,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:06,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:06,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:06,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:06,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:06,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:06,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:06,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:06,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:06,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783862424] [2020-10-13 10:50:06,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:06,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:06,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266801160] [2020-10-13 10:50:06,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:06,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:06,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:06,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:06,627 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 5 states. [2020-10-13 10:50:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:06,839 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2020-10-13 10:50:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:06,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-13 10:50:06,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:06,841 INFO L225 Difference]: With dead ends: 95 [2020-10-13 10:50:06,841 INFO L226 Difference]: Without dead ends: 93 [2020-10-13 10:50:06,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:06,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-13 10:50:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 79. [2020-10-13 10:50:06,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-13 10:50:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-10-13 10:50:06,860 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-10-13 10:50:06,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:06,861 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-10-13 10:50:06,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-10-13 10:50:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-13 10:50:06,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:06,867 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] [2020-10-13 10:50:06,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:50:06,867 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:06,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:06,868 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-10-13 10:50:06,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:06,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010656582] [2020-10-13 10:50:06,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:06,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:06,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:07,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:07,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 10:50:07,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:50:07,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-13 10:50:07,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:07,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:07,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 10:50:07,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:07,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:07,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:07,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:07,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:50:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:07,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:07,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010656582] [2020-10-13 10:50:07,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:07,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:07,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089332681] [2020-10-13 10:50:07,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:07,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:07,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:07,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:07,429 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-10-13 10:50:07,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:07,639 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-10-13 10:50:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:07,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-13 10:50:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:07,642 INFO L225 Difference]: With dead ends: 121 [2020-10-13 10:50:07,642 INFO L226 Difference]: Without dead ends: 119 [2020-10-13 10:50:07,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-13 10:50:07,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-10-13 10:50:07,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-13 10:50:07,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-10-13 10:50:07,660 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-10-13 10:50:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:07,660 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-10-13 10:50:07,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:07,661 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-10-13 10:50:07,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-13 10:50:07,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:07,664 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] [2020-10-13 10:50:07,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:50:07,665 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:07,666 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-10-13 10:50:07,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:07,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130424186] [2020-10-13 10:50:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:07,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:07,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:07,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:07,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:08,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 10:50:08,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:50:08,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-13 10:50:08,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:08,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:08,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 10:50:08,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:08,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:08,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:08,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:08,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:08,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:08,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:08,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:08,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130424186] [2020-10-13 10:50:08,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:08,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:08,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607333310] [2020-10-13 10:50:08,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:08,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:08,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:08,225 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-10-13 10:50:08,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:08,343 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-10-13 10:50:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:08,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-13 10:50:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:08,345 INFO L225 Difference]: With dead ends: 77 [2020-10-13 10:50:08,345 INFO L226 Difference]: Without dead ends: 75 [2020-10-13 10:50:08,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:08,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-13 10:50:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-13 10:50:08,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-13 10:50:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-10-13 10:50:08,353 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-10-13 10:50:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:08,354 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-10-13 10:50:08,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-10-13 10:50:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-13 10:50:08,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:08,356 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] [2020-10-13 10:50:08,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:50:08,357 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:08,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:08,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-10-13 10:50:08,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:08,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775151238] [2020-10-13 10:50:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:08,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 10:50:08,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:50:08,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-13 10:50:08,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:08,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:50:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 10:50:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:08,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:08,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:08,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:08,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:08,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:08,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:50:08,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:08,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775151238] [2020-10-13 10:50:08,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:08,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:50:08,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575785563] [2020-10-13 10:50:08,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:50:08,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:08,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:50:08,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:50:08,655 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 4 states. [2020-10-13 10:50:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:08,792 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-10-13 10:50:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:50:08,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-13 10:50:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:08,794 INFO L225 Difference]: With dead ends: 115 [2020-10-13 10:50:08,796 INFO L226 Difference]: Without dead ends: 75 [2020-10-13 10:50:08,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:08,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-13 10:50:08,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-13 10:50:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-13 10:50:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-10-13 10:50:08,812 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-10-13 10:50:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:08,815 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-10-13 10:50:08,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:50:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-10-13 10:50:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 10:50:08,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:08,816 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] [2020-10-13 10:50:08,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 10:50:08,817 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:08,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:08,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-10-13 10:50:08,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:08,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117846882] [2020-10-13 10:50:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:08,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:08,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:09,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:09,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 10:50:09,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:50:09,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-13 10:50:09,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:09,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:09,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 10:50:09,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:09,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:09,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:09,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:09,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:09,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:50:09,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:09,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:50:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:09,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117846882] [2020-10-13 10:50:09,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:09,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:09,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762487742] [2020-10-13 10:50:09,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:09,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:09,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:09,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:09,116 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2020-10-13 10:50:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:09,318 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-10-13 10:50:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:09,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-13 10:50:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:09,319 INFO L225 Difference]: With dead ends: 76 [2020-10-13 10:50:09,319 INFO L226 Difference]: Without dead ends: 74 [2020-10-13 10:50:09,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:50:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-13 10:50:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-10-13 10:50:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-13 10:50:09,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-10-13 10:50:09,326 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-10-13 10:50:09,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:09,326 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-10-13 10:50:09,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:09,327 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-10-13 10:50:09,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 10:50:09,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:09,332 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 10:50:09,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 10:50:09,332 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:09,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-10-13 10:50:09,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:09,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637779121] [2020-10-13 10:50:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:09,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:09,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:09,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:09,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:09,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 10:50:09,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:50:09,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-13 10:50:09,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:50:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 10:50:09,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:50:09,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:09,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:09,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:09,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:09,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:09,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:09,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:09,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:09,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:09,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637779121] [2020-10-13 10:50:09,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:50:09,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 10:50:09,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067960416] [2020-10-13 10:50:09,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:50:09,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:09,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:50:09,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:09,781 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 8 states. [2020-10-13 10:50:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:10,103 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-10-13 10:50:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:50:10,104 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-13 10:50:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:10,105 INFO L225 Difference]: With dead ends: 111 [2020-10-13 10:50:10,105 INFO L226 Difference]: Without dead ends: 109 [2020-10-13 10:50:10,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:50:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-13 10:50:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-10-13 10:50:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-13 10:50:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-10-13 10:50:10,111 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-10-13 10:50:10,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:10,111 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-10-13 10:50:10,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:50:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-10-13 10:50:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:50:10,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:10,113 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] [2020-10-13 10:50:10,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 10:50:10,113 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:10,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:10,114 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-10-13 10:50:10,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:10,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726480027] [2020-10-13 10:50:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:10,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:10,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 10:50:10,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:50:10,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-10-13 10:50:10,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 10:50:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:10,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:10,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:10,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:10,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:10,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:10,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:10,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726480027] [2020-10-13 10:50:10,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:10,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:10,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586277959] [2020-10-13 10:50:10,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:10,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:10,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:10,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:10,927 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2020-10-13 10:50:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:11,043 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-10-13 10:50:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:11,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-13 10:50:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:11,045 INFO L225 Difference]: With dead ends: 70 [2020-10-13 10:50:11,045 INFO L226 Difference]: Without dead ends: 68 [2020-10-13 10:50:11,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-13 10:50:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-13 10:50:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-13 10:50:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-10-13 10:50:11,050 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-10-13 10:50:11,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:11,051 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-10-13 10:50:11,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-10-13 10:50:11,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:50:11,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:11,052 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 10:50:11,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 10:50:11,052 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:11,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-10-13 10:50:11,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:11,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121802335] [2020-10-13 10:50:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:11,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:11,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 10:50:11,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:50:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-13 10:50:11,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:50:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 10:50:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:50:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:11,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:11,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:11,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:11,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:11,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:11,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:11,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:11,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:11,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:11,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:11,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:11,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121802335] [2020-10-13 10:50:11,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:50:11,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 10:50:11,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955093645] [2020-10-13 10:50:11,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:50:11,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:11,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:50:11,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:11,421 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 8 states. [2020-10-13 10:50:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:11,559 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-10-13 10:50:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:11,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-10-13 10:50:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:11,561 INFO L225 Difference]: With dead ends: 69 [2020-10-13 10:50:11,561 INFO L226 Difference]: Without dead ends: 67 [2020-10-13 10:50:11,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:50:11,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-13 10:50:11,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-10-13 10:50:11,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-13 10:50:11,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-10-13 10:50:11,566 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-10-13 10:50:11,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:11,567 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-10-13 10:50:11,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:50:11,567 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-10-13 10:50:11,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 10:50:11,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:11,568 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] [2020-10-13 10:50:11,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 10:50:11,569 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:11,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:11,569 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-10-13 10:50:11,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:11,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290189726] [2020-10-13 10:50:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:11,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:11,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:12,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 10:50:12,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 10:50:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-13 10:50:12,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:12,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:12,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 10:50:12,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:12,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:12,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:12,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:12,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:12,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:12,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:12,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:12,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290189726] [2020-10-13 10:50:12,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:12,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:12,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184080362] [2020-10-13 10:50:12,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:12,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:12,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:12,139 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 7 states. [2020-10-13 10:50:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:12,264 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-10-13 10:50:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:12,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-10-13 10:50:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:12,265 INFO L225 Difference]: With dead ends: 63 [2020-10-13 10:50:12,266 INFO L226 Difference]: Without dead ends: 61 [2020-10-13 10:50:12,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:50:12,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-13 10:50:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-10-13 10:50:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-13 10:50:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-10-13 10:50:12,271 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-10-13 10:50:12,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:12,271 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-10-13 10:50:12,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:12,272 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-10-13 10:50:12,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-13 10:50:12,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:12,273 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] [2020-10-13 10:50:12,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 10:50:12,273 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:12,274 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-10-13 10:50:12,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:12,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959767053] [2020-10-13 10:50:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:12,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:13,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:13,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 10:50:13,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 10:50:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1449 [2020-10-13 10:50:13,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:50:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 10:50:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:13,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:13,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:13,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:13,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:13,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:13,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:13,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:13,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:13,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959767053] [2020-10-13 10:50:13,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:13,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:50:13,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235451798] [2020-10-13 10:50:13,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:50:13,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:13,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:50:13,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:50:13,802 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2020-10-13 10:50:13,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:13,933 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2020-10-13 10:50:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:13,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-10-13 10:50:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:13,934 INFO L225 Difference]: With dead ends: 60 [2020-10-13 10:50:13,935 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 10:50:13,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:50:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 10:50:13,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-13 10:50:13,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-13 10:50:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-10-13 10:50:13,939 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-10-13 10:50:13,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:13,940 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-10-13 10:50:13,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:50:13,940 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-10-13 10:50:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-13 10:50:13,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:13,941 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] [2020-10-13 10:50:13,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 10:50:13,941 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:13,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:13,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-10-13 10:50:13,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:13,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587473883] [2020-10-13 10:50:13,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:13,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:13,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:14,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:15,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 10:50:15,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 10:50:15,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-10-13 10:50:15,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:15,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:15,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 10:50:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:15,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:15,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:15,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:15,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:15,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:15,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:15,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:15,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587473883] [2020-10-13 10:50:15,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:15,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:15,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686621583] [2020-10-13 10:50:15,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:15,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:15,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:15,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:15,326 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-10-13 10:50:15,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:15,566 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-10-13 10:50:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:50:15,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-10-13 10:50:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:15,567 INFO L225 Difference]: With dead ends: 93 [2020-10-13 10:50:15,567 INFO L226 Difference]: Without dead ends: 91 [2020-10-13 10:50:15,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:50:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-13 10:50:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 61. [2020-10-13 10:50:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-13 10:50:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-10-13 10:50:15,573 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-10-13 10:50:15,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:15,573 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-10-13 10:50:15,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-10-13 10:50:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-13 10:50:15,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:15,574 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] [2020-10-13 10:50:15,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 10:50:15,574 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:15,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:15,574 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-10-13 10:50:15,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:15,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624092594] [2020-10-13 10:50:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:15,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 10:50:19,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 10:50:19,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3747 [2020-10-13 10:50:19,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:19,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 10:50:19,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:50:19,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:19,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:19,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:19,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:19,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:19,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:19,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624092594] [2020-10-13 10:50:19,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:19,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:19,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011272093] [2020-10-13 10:50:19,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:19,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:19,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:19,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:19,399 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-10-13 10:50:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:19,517 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-10-13 10:50:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:19,517 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-13 10:50:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:19,518 INFO L225 Difference]: With dead ends: 61 [2020-10-13 10:50:19,518 INFO L226 Difference]: Without dead ends: 59 [2020-10-13 10:50:19,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:19,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-13 10:50:19,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-13 10:50:19,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-13 10:50:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-10-13 10:50:19,524 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-10-13 10:50:19,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:19,524 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-10-13 10:50:19,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-10-13 10:50:19,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 10:50:19,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:19,525 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] [2020-10-13 10:50:19,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 10:50:19,525 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:19,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:19,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-10-13 10:50:19,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:19,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610360444] [2020-10-13 10:50:19,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:19,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 10:50:19,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:19,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 10:50:19,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:50:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 10:50:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:50:19,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:19,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:19,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:19,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:19,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:19,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:50:19,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:19,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610360444] [2020-10-13 10:50:19,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:19,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:50:19,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118130680] [2020-10-13 10:50:19,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:50:19,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:19,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:50:19,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:50:19,646 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-10-13 10:50:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:19,787 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-10-13 10:50:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:19,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-10-13 10:50:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:19,788 INFO L225 Difference]: With dead ends: 70 [2020-10-13 10:50:19,788 INFO L226 Difference]: Without dead ends: 68 [2020-10-13 10:50:19,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:19,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-13 10:50:19,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2020-10-13 10:50:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-13 10:50:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2020-10-13 10:50:19,795 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2020-10-13 10:50:19,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:19,795 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2020-10-13 10:50:19,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:50:19,795 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-10-13 10:50:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-13 10:50:19,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:19,796 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] [2020-10-13 10:50:19,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 10:50:19,796 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:19,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:19,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-10-13 10:50:19,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:19,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537944488] [2020-10-13 10:50:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:19,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-13 10:50:19,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:19,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 10:50:19,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 10:50:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:50:19,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:19,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:19,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:19,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:19,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:19,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:50:19,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:19,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:19,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537944488] [2020-10-13 10:50:19,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:19,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:19,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446458898] [2020-10-13 10:50:19,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:19,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:19,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:19,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:19,904 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 6 states. [2020-10-13 10:50:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:20,046 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2020-10-13 10:50:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:20,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-13 10:50:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:20,048 INFO L225 Difference]: With dead ends: 66 [2020-10-13 10:50:20,048 INFO L226 Difference]: Without dead ends: 64 [2020-10-13 10:50:20,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:20,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-13 10:50:20,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2020-10-13 10:50:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-13 10:50:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-10-13 10:50:20,053 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 42 [2020-10-13 10:50:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:20,053 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-10-13 10:50:20,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-10-13 10:50:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 10:50:20,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:20,054 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] [2020-10-13 10:50:20,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 10:50:20,055 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:20,055 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-10-13 10:50:20,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:20,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609376839] [2020-10-13 10:50:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:20,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:20,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:24,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 10:50:24,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 10:50:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4054 [2020-10-13 10:50:24,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 10:50:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:50:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:24,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:24,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:24,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:24,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:24,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:24,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:24,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:50:24,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:24,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609376839] [2020-10-13 10:50:24,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:24,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:24,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317838201] [2020-10-13 10:50:24,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:24,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:24,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:24,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:24,181 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 6 states. [2020-10-13 10:50:24,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:24,430 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2020-10-13 10:50:24,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:50:24,430 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-10-13 10:50:24,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:24,431 INFO L225 Difference]: With dead ends: 76 [2020-10-13 10:50:24,431 INFO L226 Difference]: Without dead ends: 74 [2020-10-13 10:50:24,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:50:24,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-13 10:50:24,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2020-10-13 10:50:24,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-13 10:50:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-10-13 10:50:24,435 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 43 [2020-10-13 10:50:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:24,436 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-10-13 10:50:24,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-10-13 10:50:24,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 10:50:24,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:24,437 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] [2020-10-13 10:50:24,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 10:50:24,437 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:24,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:24,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-10-13 10:50:24,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:24,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141080146] [2020-10-13 10:50:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:24,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:27,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:29,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 10:50:29,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 10:50:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 10:50:29,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:50:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 10:50:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:50:29,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:29,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:29,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:29,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:29,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:29,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:29,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:29,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:29,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:29,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141080146] [2020-10-13 10:50:29,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:50:29,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:50:29,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260780813] [2020-10-13 10:50:29,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:50:29,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:29,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:50:29,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:50:29,567 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 6 states. [2020-10-13 10:50:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:29,765 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2020-10-13 10:50:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:50:29,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-13 10:50:29,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:29,767 INFO L225 Difference]: With dead ends: 65 [2020-10-13 10:50:29,768 INFO L226 Difference]: Without dead ends: 63 [2020-10-13 10:50:29,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:50:29,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-13 10:50:29,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 51. [2020-10-13 10:50:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 10:50:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-10-13 10:50:29,777 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 44 [2020-10-13 10:50:29,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:29,778 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-10-13 10:50:29,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:50:29,778 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-10-13 10:50:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 10:50:29,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:50:29,779 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 10:50:29,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 10:50:29,780 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:50:29,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:50:29,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-10-13 10:50:29,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:50:29,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768784841] [2020-10-13 10:50:29,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:50:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:29,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:29,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:30,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:30,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:30,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:31,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:31,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:34,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:34,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 10:50:34,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 10:50:34,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 10:50:34,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:34,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:50:34,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 10:50:34,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 10:50:34,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:34,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:50:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:50:34,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:50:34,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:50:34,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:50:34,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:50:34,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:50:34,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:50:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:50:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:50:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:50:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:50:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:50:34,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768784841] [2020-10-13 10:50:34,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:50:34,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 10:50:34,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600031623] [2020-10-13 10:50:34,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:50:34,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:50:34,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:50:34,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:50:34,915 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 8 states. [2020-10-13 10:50:35,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:50:35,111 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2020-10-13 10:50:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:50:35,116 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2020-10-13 10:50:35,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:50:35,117 INFO L225 Difference]: With dead ends: 51 [2020-10-13 10:50:35,117 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 10:50:35,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:50:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 10:50:35,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 10:50:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 10:50:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 10:50:35,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-10-13 10:50:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:50:35,119 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 10:50:35,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:50:35,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 10:50:35,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 10:50:35,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 10:50:35,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 10:50:35,253 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-10-13 10:50:35,542 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-10-13 10:50:35,649 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-10-13 10:50:35,805 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-13 10:50:36,185 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2020-10-13 10:50:36,337 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 26 [2020-10-13 10:50:36,599 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2020-10-13 10:50:36,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:50:36,604 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_375~0 |old(~__return_375~0)|)) [2020-10-13 10:50:36,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:50:36,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:50:36,604 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 10:50:36,605 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:50:36,605 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:50:36,605 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:50:36,605 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-13 10:50:36,605 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:50:36,605 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-10-13 10:50:36,605 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-10-13 10:50:36,605 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-10-13 10:50:36,606 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-10-13 10:50:36,606 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-10-13 10:50:36,606 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-10-13 10:50:36,606 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-10-13 10:50:36,606 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-13 10:50:36,607 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (< 0 main_~main__scheme~0) (<= 1 main_~__VERIFIER_assert__cond~2) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__VERIFIER_assert__cond~3 0)) (= |old(~__return_375~0)| ~__return_375~0) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~1 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) [2020-10-13 10:50:36,608 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-10-13 10:50:36,609 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-10-13 10:50:36,609 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-10-13 10:50:36,609 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (and (let ((.cse0 (<= 1 main_~__VERIFIER_assert__cond~5)) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~9 0))) (.cse3 (<= (+ main_~main__cp~0 2) main_~main__urilen~0)) (.cse4 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse5 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse6 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse7 (<= 1 main_~__VERIFIER_assert__cond~2)) (.cse8 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse9 (<= 1 main_~__VERIFIER_assert__cond~11)) (.cse10 (not (= main_~__VERIFIER_assert__cond~3 0))) (.cse11 (<= 1 main_~main__cp~0)) (.cse12 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 main_~__VERIFIER_assert__cond~12) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12))) (= main_~__VERIFIER_assert__cond~10 1) (<= 0 main_~main__c~0) (= |old(~__return_375~0)| ~__return_375~0)) [2020-10-13 10:50:36,609 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-10-13 10:50:36,609 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-10-13 10:50:36,609 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-10-13 10:50:36,610 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-10-13 10:50:36,610 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-10-13 10:50:36,610 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-10-13 10:50:36,611 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2020-10-13 10:50:36,611 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-10-13 10:50:36,611 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-13 10:50:36,612 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-10-13 10:50:36,613 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-10-13 10:50:36,614 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-10-13 10:50:36,615 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-10-13 10:50:36,616 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-10-13 10:50:36,616 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-10-13 10:50:36,616 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-10-13 10:50:36,616 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-10-13 10:50:36,616 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-10-13 10:50:36,616 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-13 10:50:36,616 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-10-13 10:50:36,617 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse15 (+ main_~main__cp~0 1))) (let ((.cse1 (<= 1 main_~__VERIFIER_assert__cond~5)) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse0 (<= 0 main_~main__c~0)) (.cse3 (not (= main_~__VERIFIER_assert__cond~9 0))) (.cse4 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse5 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse14 (= |old(~__return_375~0)| ~__return_375~0)) (.cse6 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse7 (<= .cse15 main_~main__urilen~0)) (.cse8 (<= 1 main_~__VERIFIER_assert__cond~2)) (.cse9 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse11 (not (= main_~__VERIFIER_assert__cond~3 0))) (.cse12 (<= 1 main_~main__cp~0)) (.cse13 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 (let ((.cse10 (<= 1 main_~__VERIFIER_assert__cond~11))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 main_~__VERIFIER_assert__cond~12) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (and .cse1 .cse2 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13))) .cse14 (<= 1 main_~__VERIFIER_assert__cond~10)) (and (< .cse15 main_~main__urilen~0) .cse1 .cse2 .cse0 .cse3 .cse4 .cse5 .cse14 .cse6 .cse7 .cse8 .cse9 .cse11 .cse12 (= main_~__VERIFIER_assert__cond~8 1) .cse13)))) [2020-10-13 10:50:36,617 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-10-13 10:50:36,617 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-10-13 10:50:36,617 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-10-13 10:50:36,617 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-10-13 10:50:36,617 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-10-13 10:50:36,617 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-10-13 10:50:36,617 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-10-13 10:50:36,618 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-10-13 10:50:36,619 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-10-13 10:50:36,619 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-10-13 10:50:36,619 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-10-13 10:50:36,619 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-10-13 10:50:36,619 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-10-13 10:50:36,620 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 10:50:36,620 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-10-13 10:50:36,620 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (< 0 main_~main__scheme~0) (<= 1 main_~__VERIFIER_assert__cond~2) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__VERIFIER_assert__cond~3 0)) (= |old(~__return_375~0)| ~__return_375~0) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~1 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) [2020-10-13 10:50:36,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:50:36 BoogieIcfgContainer [2020-10-13 10:50:36,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:50:36,677 INFO L168 Benchmark]: Toolchain (without parser) took 34065.38 ms. Allocated memory was 145.2 MB in the beginning and 508.6 MB in the end (delta: 363.3 MB). Free memory was 103.4 MB in the beginning and 163.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 303.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:36,678 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 10:50:36,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.14 ms. Allocated memory is still 145.2 MB. Free memory was 103.0 MB in the beginning and 90.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:36,679 INFO L168 Benchmark]: Boogie Preprocessor took 151.20 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 90.1 MB in the beginning and 180.7 MB in the end (delta: -90.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:36,679 INFO L168 Benchmark]: RCFGBuilder took 496.16 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 152.5 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:36,680 INFO L168 Benchmark]: TraceAbstraction took 33083.93 ms. Allocated memory was 203.4 MB in the beginning and 508.6 MB in the end (delta: 305.1 MB). Free memory was 152.5 MB in the beginning and 163.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 294.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:50:36,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 328.14 ms. Allocated memory is still 145.2 MB. Free memory was 103.0 MB in the beginning and 90.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.20 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 90.1 MB in the beginning and 180.7 MB in the end (delta: -90.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 496.16 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 152.5 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33083.93 ms. Allocated memory was 203.4 MB in the beginning and 508.6 MB in the end (delta: 305.1 MB). Free memory was 152.5 MB in the beginning and 163.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 294.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((0 < main__scheme && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && \old(__return_375) == __return_375 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: (((0 <= main__c && ((((((((((((((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((((((((((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)))) && \old(__return_375) == __return_375) && 1 <= __VERIFIER_assert__cond) || (((((((((((((((main__cp + 1 < main__urilen && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 0 <= main__c) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((((0 < main__scheme && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((((((((((((((1 <= __VERIFIER_assert__cond && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 2 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((((((((((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 2 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) && __VERIFIER_assert__cond == 1) && 0 <= main__c) && \old(__return_375) == __return_375 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.4s, OverallIterations: 22, TraceHistogramMax: 2, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1320 SDtfs, 3513 SDslu, 304 SDs, 0 SdLazy, 2288 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 293 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 375 HoareAnnotationTreeSize, 9 FomulaSimplifications, 144671 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 18606 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 701 NumberOfCodeBlocks, 701 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 679 ConstructedInterpolants, 0 QuantifiedInterpolants, 40657 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 19 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...