/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_7.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:39:21,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:39:21,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:39:21,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:39:21,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:39:21,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:39:21,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:39:21,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:39:21,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:39:21,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:39:21,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:39:21,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:39:21,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:39:21,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:39:21,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:39:21,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:39:21,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:39:21,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:39:21,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:39:21,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:39:21,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:39:21,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:39:21,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:39:21,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:39:21,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:39:21,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:39:21,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:39:21,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:39:21,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:39:21,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:39:21,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:39:21,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:39:21,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:39:21,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:39:21,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:39:21,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:39:21,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:39:21,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:39:21,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:39:21,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:39:21,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:39:21,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:39:21,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:39:21,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:39:21,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:39:21,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:39:21,570 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:39:21,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:39:21,571 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:39:21,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:39:21,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:39:21,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:39:21,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:39:21,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:39:21,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:39:21,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:39:21,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:39:21,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:39:21,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:39:21,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:39:21,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:39:21,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:39:21,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:39:21,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:21,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:39:21,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:39:21,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:39:21,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:39:21,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:39:21,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:39:21,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:39:21,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:39:22,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:39:22,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:39:22,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:39:22,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:39:22,107 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:39:22,108 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_7.c [2020-09-25 06:39:22,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf268e93/ac1e9339fa10409c89497a5aa75ae603/FLAG6ecc98bb1 [2020-09-25 06:39:22,768 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:39:22,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_7.c [2020-09-25 06:39:22,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf268e93/ac1e9339fa10409c89497a5aa75ae603/FLAG6ecc98bb1 [2020-09-25 06:39:23,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf268e93/ac1e9339fa10409c89497a5aa75ae603 [2020-09-25 06:39:23,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:39:23,112 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:39:23,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:23,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:39:23,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:39:23,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5783693b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23, skipping insertion in model container [2020-09-25 06:39:23,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:39:23,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:39:23,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:23,432 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:39:23,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:23,475 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:39:23,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23 WrapperNode [2020-09-25 06:39:23,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:23,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:39:23,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:39:23,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:39:23,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... [2020-09-25 06:39:23,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:39:23,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:39:23,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:39:23,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:39:23,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:23,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:39:23,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:39:23,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:39:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:39:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:39:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:39:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:39:23,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:39:24,019 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:39:24,020 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:39:24,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:24 BoogieIcfgContainer [2020-09-25 06:39:24,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:39:24,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:39:24,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:39:24,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:39:24,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:39:23" (1/3) ... [2020-09-25 06:39:24,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd4180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:24, skipping insertion in model container [2020-09-25 06:39:24,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:23" (2/3) ... [2020-09-25 06:39:24,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd4180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:24, skipping insertion in model container [2020-09-25 06:39:24,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:24" (3/3) ... [2020-09-25 06:39:24,037 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_7.c [2020-09-25 06:39:24,050 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:39:24,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:39:24,085 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:39:24,120 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:39:24,120 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:39:24,120 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:39:24,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:39:24,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:39:24,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:39:24,121 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:39:24,122 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:39:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-09-25 06:39:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 06:39:24,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:24,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:24,161 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:24,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:24,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1826051656, now seen corresponding path program 1 times [2020-09-25 06:39:24,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:24,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697515442] [2020-09-25 06:39:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 06:39:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 06:39:24,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 06:39:24,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:24,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 06:39:24,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:24,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:24,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697515442] [2020-09-25 06:39:24,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:24,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:24,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974454294] [2020-09-25 06:39:24,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:24,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:24,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:24,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,674 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 3 states. [2020-09-25 06:39:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:24,761 INFO L93 Difference]: Finished difference Result 191 states and 260 transitions. [2020-09-25 06:39:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:24,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-09-25 06:39:24,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:24,780 INFO L225 Difference]: With dead ends: 191 [2020-09-25 06:39:24,781 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 06:39:24,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:24,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 06:39:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2020-09-25 06:39:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 06:39:24,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2020-09-25 06:39:24,850 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 164 transitions. Word has length 55 [2020-09-25 06:39:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:24,851 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 164 transitions. [2020-09-25 06:39:24,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:24,852 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 164 transitions. [2020-09-25 06:39:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 06:39:24,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:24,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:24,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:39:24,855 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:24,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:24,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1965492109, now seen corresponding path program 1 times [2020-09-25 06:39:24,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:24,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115111795] [2020-09-25 06:39:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 06:39:25,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 06:39:25,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 06:39:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:25,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:25,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:25,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:25,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:39:25,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:25,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115111795] [2020-09-25 06:39:25,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:25,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:25,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935151454] [2020-09-25 06:39:25,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:25,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:25,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:25,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,107 INFO L87 Difference]: Start difference. First operand 126 states and 164 transitions. Second operand 3 states. [2020-09-25 06:39:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,164 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2020-09-25 06:39:25,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:25,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 06:39:25,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,171 INFO L225 Difference]: With dead ends: 154 [2020-09-25 06:39:25,171 INFO L226 Difference]: Without dead ends: 152 [2020-09-25 06:39:25,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-25 06:39:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 126. [2020-09-25 06:39:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 06:39:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 163 transitions. [2020-09-25 06:39:25,204 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 163 transitions. Word has length 56 [2020-09-25 06:39:25,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,205 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 163 transitions. [2020-09-25 06:39:25,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 163 transitions. [2020-09-25 06:39:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 06:39:25,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:25,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:39:25,208 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,209 INFO L82 PathProgramCache]: Analyzing trace with hash 773271458, now seen corresponding path program 1 times [2020-09-25 06:39:25,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570536573] [2020-09-25 06:39:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 06:39:25,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 06:39:25,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:25,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 06:39:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 06:39:25,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:25,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:39:25,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:25,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570536573] [2020-09-25 06:39:25,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:25,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:25,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456936532] [2020-09-25 06:39:25,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:25,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:25,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:25,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,404 INFO L87 Difference]: Start difference. First operand 126 states and 163 transitions. Second operand 3 states. [2020-09-25 06:39:25,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,441 INFO L93 Difference]: Finished difference Result 306 states and 415 transitions. [2020-09-25 06:39:25,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:25,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 06:39:25,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,445 INFO L225 Difference]: With dead ends: 306 [2020-09-25 06:39:25,445 INFO L226 Difference]: Without dead ends: 213 [2020-09-25 06:39:25,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-09-25 06:39:25,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211. [2020-09-25 06:39:25,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-25 06:39:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 280 transitions. [2020-09-25 06:39:25,465 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 280 transitions. Word has length 56 [2020-09-25 06:39:25,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,465 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 280 transitions. [2020-09-25 06:39:25,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:25,466 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 280 transitions. [2020-09-25 06:39:25,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 06:39:25,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:25,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:39:25,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,469 INFO L82 PathProgramCache]: Analyzing trace with hash -610540190, now seen corresponding path program 1 times [2020-09-25 06:39:25,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910430199] [2020-09-25 06:39:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 06:39:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 06:39:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 06:39:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:25,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:25,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910430199] [2020-09-25 06:39:25,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:25,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:25,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528802645] [2020-09-25 06:39:25,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:25,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:25,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:25,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,592 INFO L87 Difference]: Start difference. First operand 211 states and 280 transitions. Second operand 3 states. [2020-09-25 06:39:25,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,621 INFO L93 Difference]: Finished difference Result 259 states and 346 transitions. [2020-09-25 06:39:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:25,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-09-25 06:39:25,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,628 INFO L225 Difference]: With dead ends: 259 [2020-09-25 06:39:25,628 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 06:39:25,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 06:39:25,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 211. [2020-09-25 06:39:25,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-25 06:39:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 278 transitions. [2020-09-25 06:39:25,667 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 278 transitions. Word has length 57 [2020-09-25 06:39:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,668 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 278 transitions. [2020-09-25 06:39:25,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 278 transitions. [2020-09-25 06:39:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 06:39:25,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:25,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:39:25,676 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1798143236, now seen corresponding path program 1 times [2020-09-25 06:39:25,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790283306] [2020-09-25 06:39:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 06:39:25,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:39:25,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 06:39:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:25,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:25,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:25,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790283306] [2020-09-25 06:39:25,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:25,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:25,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959224281] [2020-09-25 06:39:25,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:25,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:25,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:25,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,786 INFO L87 Difference]: Start difference. First operand 211 states and 278 transitions. Second operand 3 states. [2020-09-25 06:39:25,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,811 INFO L93 Difference]: Finished difference Result 555 states and 752 transitions. [2020-09-25 06:39:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:25,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-09-25 06:39:25,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,814 INFO L225 Difference]: With dead ends: 555 [2020-09-25 06:39:25,814 INFO L226 Difference]: Without dead ends: 377 [2020-09-25 06:39:25,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-25 06:39:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 375. [2020-09-25 06:39:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 06:39:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 498 transitions. [2020-09-25 06:39:25,834 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 498 transitions. Word has length 57 [2020-09-25 06:39:25,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,834 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 498 transitions. [2020-09-25 06:39:25,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 498 transitions. [2020-09-25 06:39:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 06:39:25,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:25,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:25,838 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1136837537, now seen corresponding path program 1 times [2020-09-25 06:39:25,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926373679] [2020-09-25 06:39:25,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 06:39:25,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:39:25,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 06:39:25,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:25,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:25,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:25,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:25,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:25,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:25,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:25,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:25,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926373679] [2020-09-25 06:39:25,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:25,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:25,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101125022] [2020-09-25 06:39:25,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:25,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:25,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:25,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,945 INFO L87 Difference]: Start difference. First operand 375 states and 498 transitions. Second operand 3 states. [2020-09-25 06:39:25,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,972 INFO L93 Difference]: Finished difference Result 459 states and 612 transitions. [2020-09-25 06:39:25,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:25,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-09-25 06:39:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,976 INFO L225 Difference]: With dead ends: 459 [2020-09-25 06:39:25,976 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 06:39:25,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:25,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 06:39:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 375. [2020-09-25 06:39:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 06:39:25,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 494 transitions. [2020-09-25 06:39:25,994 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 494 transitions. Word has length 58 [2020-09-25 06:39:25,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,994 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 494 transitions. [2020-09-25 06:39:25,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:25,995 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 494 transitions. [2020-09-25 06:39:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 06:39:25,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:25,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:25,997 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,997 INFO L82 PathProgramCache]: Analyzing trace with hash 92380246, now seen corresponding path program 1 times [2020-09-25 06:39:25,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89399528] [2020-09-25 06:39:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 06:39:26,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 06:39:26,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 06:39:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:26,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:26,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:26,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89399528] [2020-09-25 06:39:26,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521271087] [2020-09-25 06:39:26,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,105 INFO L87 Difference]: Start difference. First operand 375 states and 494 transitions. Second operand 3 states. [2020-09-25 06:39:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,140 INFO L93 Difference]: Finished difference Result 1035 states and 1384 transitions. [2020-09-25 06:39:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-09-25 06:39:26,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,146 INFO L225 Difference]: With dead ends: 1035 [2020-09-25 06:39:26,146 INFO L226 Difference]: Without dead ends: 693 [2020-09-25 06:39:26,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-09-25 06:39:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2020-09-25 06:39:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-09-25 06:39:26,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 906 transitions. [2020-09-25 06:39:26,174 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 906 transitions. Word has length 58 [2020-09-25 06:39:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,175 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 906 transitions. [2020-09-25 06:39:26,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 906 transitions. [2020-09-25 06:39:26,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 06:39:26,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:26,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:26,178 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,178 INFO L82 PathProgramCache]: Analyzing trace with hash -529027402, now seen corresponding path program 1 times [2020-09-25 06:39:26,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415740948] [2020-09-25 06:39:26,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 06:39:26,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:39:26,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 06:39:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:26,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:26,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:26,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415740948] [2020-09-25 06:39:26,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192760253] [2020-09-25 06:39:26,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,286 INFO L87 Difference]: Start difference. First operand 691 states and 906 transitions. Second operand 3 states. [2020-09-25 06:39:26,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,308 INFO L93 Difference]: Finished difference Result 839 states and 1100 transitions. [2020-09-25 06:39:26,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-09-25 06:39:26,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,314 INFO L225 Difference]: With dead ends: 839 [2020-09-25 06:39:26,314 INFO L226 Difference]: Without dead ends: 837 [2020-09-25 06:39:26,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-09-25 06:39:26,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 691. [2020-09-25 06:39:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-09-25 06:39:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 898 transitions. [2020-09-25 06:39:26,334 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 898 transitions. Word has length 59 [2020-09-25 06:39:26,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,335 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 898 transitions. [2020-09-25 06:39:26,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 898 transitions. [2020-09-25 06:39:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 06:39:26,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:26,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:39:26,337 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1430933584, now seen corresponding path program 1 times [2020-09-25 06:39:26,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536587896] [2020-09-25 06:39:26,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 06:39:26,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 06:39:26,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 06:39:26,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:26,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:26,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:26,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536587896] [2020-09-25 06:39:26,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450378072] [2020-09-25 06:39:26,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,423 INFO L87 Difference]: Start difference. First operand 691 states and 898 transitions. Second operand 3 states. [2020-09-25 06:39:26,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,458 INFO L93 Difference]: Finished difference Result 1959 states and 2564 transitions. [2020-09-25 06:39:26,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-09-25 06:39:26,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,468 INFO L225 Difference]: With dead ends: 1959 [2020-09-25 06:39:26,468 INFO L226 Difference]: Without dead ends: 1301 [2020-09-25 06:39:26,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-09-25 06:39:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1299. [2020-09-25 06:39:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-09-25 06:39:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1666 transitions. [2020-09-25 06:39:26,509 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1666 transitions. Word has length 59 [2020-09-25 06:39:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,510 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1666 transitions. [2020-09-25 06:39:26,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1666 transitions. [2020-09-25 06:39:26,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 06:39:26,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:26,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:39:26,513 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash -631232587, now seen corresponding path program 1 times [2020-09-25 06:39:26,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196921088] [2020-09-25 06:39:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 06:39:26,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 06:39:26,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 06:39:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:26,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:26,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:26,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196921088] [2020-09-25 06:39:26,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978778140] [2020-09-25 06:39:26,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,596 INFO L87 Difference]: Start difference. First operand 1299 states and 1666 transitions. Second operand 3 states. [2020-09-25 06:39:26,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,622 INFO L93 Difference]: Finished difference Result 1559 states and 1988 transitions. [2020-09-25 06:39:26,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-25 06:39:26,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,632 INFO L225 Difference]: With dead ends: 1559 [2020-09-25 06:39:26,632 INFO L226 Difference]: Without dead ends: 1557 [2020-09-25 06:39:26,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-09-25 06:39:26,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1299. [2020-09-25 06:39:26,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-09-25 06:39:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1650 transitions. [2020-09-25 06:39:26,671 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1650 transitions. Word has length 60 [2020-09-25 06:39:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,672 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1650 transitions. [2020-09-25 06:39:26,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1650 transitions. [2020-09-25 06:39:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 06:39:26,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:26,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:39:26,674 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1409021686, now seen corresponding path program 1 times [2020-09-25 06:39:26,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924994043] [2020-09-25 06:39:26,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 06:39:26,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 06:39:26,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 06:39:26,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:26,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:26,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:26,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924994043] [2020-09-25 06:39:26,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687663780] [2020-09-25 06:39:26,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,755 INFO L87 Difference]: Start difference. First operand 1299 states and 1650 transitions. Second operand 3 states. [2020-09-25 06:39:26,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:26,799 INFO L93 Difference]: Finished difference Result 3735 states and 4756 transitions. [2020-09-25 06:39:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:26,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-25 06:39:26,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:26,811 INFO L225 Difference]: With dead ends: 3735 [2020-09-25 06:39:26,812 INFO L226 Difference]: Without dead ends: 2469 [2020-09-25 06:39:26,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2020-09-25 06:39:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2467. [2020-09-25 06:39:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-09-25 06:39:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3074 transitions. [2020-09-25 06:39:26,895 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3074 transitions. Word has length 60 [2020-09-25 06:39:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:26,895 INFO L479 AbstractCegarLoop]: Abstraction has 2467 states and 3074 transitions. [2020-09-25 06:39:26,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3074 transitions. [2020-09-25 06:39:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 06:39:26,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:26,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:26,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:39:26,898 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:26,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:26,899 INFO L82 PathProgramCache]: Analyzing trace with hash -729752476, now seen corresponding path program 1 times [2020-09-25 06:39:26,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:26,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582418093] [2020-09-25 06:39:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 06:39:26,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 06:39:26,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 06:39:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:26,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:26,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:26,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:26,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582418093] [2020-09-25 06:39:26,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:26,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780985501] [2020-09-25 06:39:26,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:26,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:26,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:26,984 INFO L87 Difference]: Start difference. First operand 2467 states and 3074 transitions. Second operand 3 states. [2020-09-25 06:39:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,056 INFO L93 Difference]: Finished difference Result 7143 states and 8900 transitions. [2020-09-25 06:39:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 06:39:27,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,075 INFO L225 Difference]: With dead ends: 7143 [2020-09-25 06:39:27,075 INFO L226 Difference]: Without dead ends: 3637 [2020-09-25 06:39:27,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2020-09-25 06:39:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3635. [2020-09-25 06:39:27,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3635 states. [2020-09-25 06:39:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3635 states to 3635 states and 4370 transitions. [2020-09-25 06:39:27,181 INFO L78 Accepts]: Start accepts. Automaton has 3635 states and 4370 transitions. Word has length 61 [2020-09-25 06:39:27,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,181 INFO L479 AbstractCegarLoop]: Abstraction has 3635 states and 4370 transitions. [2020-09-25 06:39:27,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states and 4370 transitions. [2020-09-25 06:39:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 06:39:27,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:27,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:39:27,187 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,187 INFO L82 PathProgramCache]: Analyzing trace with hash 495374346, now seen corresponding path program 1 times [2020-09-25 06:39:27,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123664654] [2020-09-25 06:39:27,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 06:39:27,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 06:39:27,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 06:39:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:27,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:27,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:27,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:27,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123664654] [2020-09-25 06:39:27,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195308895] [2020-09-25 06:39:27,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,285 INFO L87 Difference]: Start difference. First operand 3635 states and 4370 transitions. Second operand 3 states. [2020-09-25 06:39:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,337 INFO L93 Difference]: Finished difference Result 4087 states and 4852 transitions. [2020-09-25 06:39:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-25 06:39:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,356 INFO L225 Difference]: With dead ends: 4087 [2020-09-25 06:39:27,356 INFO L226 Difference]: Without dead ends: 2917 [2020-09-25 06:39:27,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2020-09-25 06:39:27,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2467. [2020-09-25 06:39:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-09-25 06:39:27,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 2914 transitions. [2020-09-25 06:39:27,468 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 2914 transitions. Word has length 61 [2020-09-25 06:39:27,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,469 INFO L479 AbstractCegarLoop]: Abstraction has 2467 states and 2914 transitions. [2020-09-25 06:39:27,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 2914 transitions. [2020-09-25 06:39:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 06:39:27,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:27,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:39:27,474 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1060451273, now seen corresponding path program 1 times [2020-09-25 06:39:27,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55502785] [2020-09-25 06:39:27,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 06:39:27,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 06:39:27,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:27,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 06:39:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:27,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:27,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:27,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:27,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:27,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:27,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:27,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:27,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:27,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:27,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55502785] [2020-09-25 06:39:27,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:27,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:27,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006937368] [2020-09-25 06:39:27,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:27,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:27,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:27,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,572 INFO L87 Difference]: Start difference. First operand 2467 states and 2914 transitions. Second operand 3 states. [2020-09-25 06:39:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,606 INFO L93 Difference]: Finished difference Result 2467 states and 2914 transitions. [2020-09-25 06:39:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:27,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-25 06:39:27,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,608 INFO L225 Difference]: With dead ends: 2467 [2020-09-25 06:39:27,608 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:39:27,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:39:27,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:39:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:39:27,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:39:27,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2020-09-25 06:39:27,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,613 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:39:27,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:27,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:39:27,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:39:27,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 06:39:27,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:39:27,651 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 06:39:27,651 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:27,651 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:27,652 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:39:27,652 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:39:27,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:39:27,652 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-25 06:39:27,652 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-25 06:39:27,653 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 121) no Hoare annotation was computed. [2020-09-25 06:39:27,653 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 06:39:27,653 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 06:39:27,653 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-25 06:39:27,653 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 06:39:27,654 INFO L268 CegarLoopResult]: For program point L86-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,654 INFO L271 CegarLoopResult]: At program point L111-1(lines 30 116) the Hoare annotation is: true [2020-09-25 06:39:27,654 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 06:39:27,654 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 06:39:27,655 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 06:39:27,655 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 06:39:27,655 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-25 06:39:27,655 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 06:39:27,655 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-09-25 06:39:27,656 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-25 06:39:27,656 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 06:39:27,656 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 06:39:27,656 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 06:39:27,656 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 06:39:27,657 INFO L264 CegarLoopResult]: At program point L112-1(lines 5 121) the Hoare annotation is: false [2020-09-25 06:39:27,657 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 06:39:27,657 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 121) no Hoare annotation was computed. [2020-09-25 06:39:27,659 INFO L268 CegarLoopResult]: For program point L71-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,659 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2020-09-25 06:39:27,660 INFO L268 CegarLoopResult]: For program point L96-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,661 INFO L268 CegarLoopResult]: For program point L63-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,661 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 121) the Hoare annotation is: true [2020-09-25 06:39:27,661 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-25 06:39:27,662 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 06:39:27,662 INFO L268 CegarLoopResult]: For program point L55-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,662 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-09-25 06:39:27,662 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-25 06:39:27,662 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-25 06:39:27,662 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-25 06:39:27,663 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 06:39:27,663 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 06:39:27,663 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-25 06:39:27,663 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 06:39:27,663 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 06:39:27,663 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 06:39:27,663 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 06:39:27,664 INFO L268 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-09-25 06:39:27,664 INFO L268 CegarLoopResult]: For program point L81-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,664 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 06:39:27,664 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 06:39:27,664 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 06:39:27,664 INFO L268 CegarLoopResult]: For program point L106-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,664 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 06:39:27,666 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-25 06:39:27,666 INFO L268 CegarLoopResult]: For program point L32(lines 32 34) no Hoare annotation was computed. [2020-09-25 06:39:27,667 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 06:39:27,667 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 06:39:27,667 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 06:39:27,667 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-25 06:39:27,667 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 06:39:27,668 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 06:39:27,668 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 06:39:27,668 INFO L268 CegarLoopResult]: For program point L91-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,668 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 06:39:27,668 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-25 06:39:27,669 INFO L268 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-09-25 06:39:27,670 INFO L268 CegarLoopResult]: For program point L75-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,670 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 06:39:27,670 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 06:39:27,671 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 06:39:27,671 INFO L268 CegarLoopResult]: For program point L67-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,671 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-25 06:39:27,672 INFO L268 CegarLoopResult]: For program point L59-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,672 INFO L271 CegarLoopResult]: At program point L117(lines 5 121) the Hoare annotation is: true [2020-09-25 06:39:27,672 INFO L268 CegarLoopResult]: For program point L51(lines 51 53) no Hoare annotation was computed. [2020-09-25 06:39:27,674 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 06:39:27,675 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 06:39:27,675 INFO L268 CegarLoopResult]: For program point L51-2(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,675 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 06:39:27,675 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-25 06:39:27,675 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 06:39:27,675 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 06:39:27,675 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-25 06:39:27,676 INFO L268 CegarLoopResult]: For program point L101-1(lines 30 116) no Hoare annotation was computed. [2020-09-25 06:39:27,676 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-25 06:39:27,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:39:27 BoogieIcfgContainer [2020-09-25 06:39:27,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:39:27,703 INFO L168 Benchmark]: Toolchain (without parser) took 4593.36 ms. Allocated memory was 141.0 MB in the beginning and 284.2 MB in the end (delta: 143.1 MB). Free memory was 104.6 MB in the beginning and 199.4 MB in the end (delta: -94.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:27,704 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:39:27,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.94 ms. Allocated memory is still 141.0 MB. Free memory was 103.9 MB in the beginning and 93.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:27,706 INFO L168 Benchmark]: Boogie Preprocessor took 123.23 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 93.7 MB in the beginning and 181.0 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:27,706 INFO L168 Benchmark]: RCFGBuilder took 427.21 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 160.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:27,707 INFO L168 Benchmark]: TraceAbstraction took 3670.01 ms. Allocated memory was 202.9 MB in the beginning and 284.2 MB in the end (delta: 81.3 MB). Free memory was 159.7 MB in the beginning and 199.4 MB in the end (delta: -39.7 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:27,711 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 361.94 ms. Allocated memory is still 141.0 MB. Free memory was 103.9 MB in the beginning and 93.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.23 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 93.7 MB in the beginning and 181.0 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 427.21 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 160.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3670.01 ms. Allocated memory was 202.9 MB in the beginning and 284.2 MB in the end (delta: 81.3 MB). Free memory was 159.7 MB in the beginning and 199.4 MB in the end (delta: -39.7 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 119]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1813 SDtfs, 648 SDslu, 1281 SDs, 0 SdLazy, 69 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3635occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 1022 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 137 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 805 ConstructedInterpolants, 0 QuantifiedInterpolants, 58429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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...