/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:56:55,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:56:55,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:56:55,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:56:55,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:56:55,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:56:55,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:56:55,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:56:55,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:56:55,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:56:55,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:56:55,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:56:55,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:56:55,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:56:55,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:56:55,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:56:55,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:56:55,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:56:55,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:56:55,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:56:55,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:56:55,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:56:55,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:56:55,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:56:55,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:56:55,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:56:55,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:56:55,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:56:55,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:56:55,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:56:55,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:56:55,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:56:55,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:56:55,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:56:55,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:56:55,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:56:55,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:56:55,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:56:55,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:56:55,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:56:55,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:56:55,571 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 00:56:55,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:56:55,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:56:55,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:56:55,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:56:55,605 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:56:55,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:56:55,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:56:55,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:56:55,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:56:55,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:56:55,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:56:55,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:56:55,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:56:55,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:56:55,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:56:55,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:56:55,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:56:55,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:56:55,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:56:55,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:56:55,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:56:55,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:56:55,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:56:55,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:56:55,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:56:55,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:56:55,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:56:55,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:56:55,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:56:55,613 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:56:56,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:56:56,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:56:56,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:56:56,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:56:56,121 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:56:56,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 00:56:56,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2164e4bf/1e4857167e694b1cb2675c035a321b64/FLAGe906cb44b [2020-09-25 00:56:56,776 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:56:56,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 00:56:56,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2164e4bf/1e4857167e694b1cb2675c035a321b64/FLAGe906cb44b [2020-09-25 00:56:57,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2164e4bf/1e4857167e694b1cb2675c035a321b64 [2020-09-25 00:56:57,111 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:56:57,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:56:57,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:56:57,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:56:57,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:56:57,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef7a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57, skipping insertion in model container [2020-09-25 00:56:57,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:56:57,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:56:57,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:56:57,407 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:56:57,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:56:57,453 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:56:57,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57 WrapperNode [2020-09-25 00:56:57,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:56:57,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:56:57,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:56:57,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:56:57,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (1/1) ... [2020-09-25 00:56:57,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:56:57,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:56:57,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:56:57,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:56:57,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (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 00:56:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:56:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:56:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:56:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:56:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 00:56:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:56:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 00:56:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:56:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:56:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:56:58,083 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:56:58,083 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:56:58,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:56:58 BoogieIcfgContainer [2020-09-25 00:56:58,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:56:58,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:56:58,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:56:58,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:56:58,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:56:57" (1/3) ... [2020-09-25 00:56:58,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c4fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:56:58, skipping insertion in model container [2020-09-25 00:56:58,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:56:57" (2/3) ... [2020-09-25 00:56:58,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c4fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:56:58, skipping insertion in model container [2020-09-25 00:56:58,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:56:58" (3/3) ... [2020-09-25 00:56:58,098 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-09-25 00:56:58,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:56:58,120 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:56:58,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:56:58,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:56:58,167 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:56:58,167 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:56:58,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:56:58,168 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:56:58,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:56:58,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:56:58,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:56:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-09-25 00:56:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 00:56:58,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:58,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:58,198 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:58,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:58,204 INFO L82 PathProgramCache]: Analyzing trace with hash 766781838, now seen corresponding path program 1 times [2020-09-25 00:56:58,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:58,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033395808] [2020-09-25 00:56:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:58,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:58,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:56:58,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:58,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 00:56:58,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:56:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:56:58,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:56:58,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:58,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:58,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:58,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:58,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:56:58,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:58,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:58,513 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 00:56:58,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033395808] [2020-09-25 00:56:58,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:58,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:58,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8370507] [2020-09-25 00:56:58,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:58,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:58,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:58,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:58,549 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-09-25 00:56:58,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:58,709 INFO L93 Difference]: Finished difference Result 198 states and 286 transitions. [2020-09-25 00:56:58,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:58,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-09-25 00:56:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:58,729 INFO L225 Difference]: With dead ends: 198 [2020-09-25 00:56:58,729 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 00:56:58,734 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 00:56:58,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 00:56:58,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-25 00:56:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 00:56:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2020-09-25 00:56:58,802 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 26 [2020-09-25 00:56:58,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:58,803 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2020-09-25 00:56:58,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:58,803 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2020-09-25 00:56:58,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 00:56:58,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:58,805 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:58,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:56:58,806 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:58,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:58,806 INFO L82 PathProgramCache]: Analyzing trace with hash -184994456, now seen corresponding path program 1 times [2020-09-25 00:56:58,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:58,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681118214] [2020-09-25 00:56:58,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:58,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:58,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 00:56:58,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:58,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 00:56:58,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:56:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:56:58,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:58,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:58,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:56:58,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:56:58,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681118214] [2020-09-25 00:56:58,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:58,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:58,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383300780] [2020-09-25 00:56:58,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:58,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:58,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:58,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:58,950 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand 3 states. [2020-09-25 00:56:59,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:59,042 INFO L93 Difference]: Finished difference Result 233 states and 325 transitions. [2020-09-25 00:56:59,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:59,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-09-25 00:56:59,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:59,046 INFO L225 Difference]: With dead ends: 233 [2020-09-25 00:56:59,046 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 00:56:59,048 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 00:56:59,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 00:56:59,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-09-25 00:56:59,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 00:56:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 240 transitions. [2020-09-25 00:56:59,090 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 240 transitions. Word has length 32 [2020-09-25 00:56:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:59,091 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 240 transitions. [2020-09-25 00:56:59,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 240 transitions. [2020-09-25 00:56:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 00:56:59,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:59,094 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:59,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:56:59,096 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:59,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:59,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1532764802, now seen corresponding path program 1 times [2020-09-25 00:56:59,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:59,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184317585] [2020-09-25 00:56:59,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:56:59,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:59,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 00:56:59,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 00:56:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:56:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 00:56:59,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:59,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:59,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:59,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:59,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 00:56:59,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184317585] [2020-09-25 00:56:59,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:59,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:59,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691358379] [2020-09-25 00:56:59,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:59,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:59,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:59,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:59,361 INFO L87 Difference]: Start difference. First operand 177 states and 240 transitions. Second operand 3 states. [2020-09-25 00:56:59,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:59,568 INFO L93 Difference]: Finished difference Result 375 states and 534 transitions. [2020-09-25 00:56:59,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:59,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-09-25 00:56:59,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:59,571 INFO L225 Difference]: With dead ends: 375 [2020-09-25 00:56:59,571 INFO L226 Difference]: Without dead ends: 221 [2020-09-25 00:56:59,573 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 00:56:59,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-25 00:56:59,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213. [2020-09-25 00:56:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-25 00:56:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 276 transitions. [2020-09-25 00:56:59,592 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 276 transitions. Word has length 40 [2020-09-25 00:56:59,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:59,593 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 276 transitions. [2020-09-25 00:56:59,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 276 transitions. [2020-09-25 00:56:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 00:56:59,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:59,595 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:59,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:56:59,596 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:59,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:59,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1529904866, now seen corresponding path program 1 times [2020-09-25 00:56:59,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:59,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946843090] [2020-09-25 00:56:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:56:59,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:59,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 00:56:59,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 00:56:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:56:59,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:59,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 00:56:59,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946843090] [2020-09-25 00:56:59,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:56:59,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:56:59,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040664323] [2020-09-25 00:56:59,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:56:59,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:59,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:56:59,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:56:59,719 INFO L87 Difference]: Start difference. First operand 213 states and 276 transitions. Second operand 3 states. [2020-09-25 00:56:59,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:59,798 INFO L93 Difference]: Finished difference Result 403 states and 535 transitions. [2020-09-25 00:56:59,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:56:59,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-09-25 00:56:59,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:59,801 INFO L225 Difference]: With dead ends: 403 [2020-09-25 00:56:59,801 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 00:56:59,802 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 00:56:59,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 00:56:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-25 00:56:59,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 00:56:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 358 transitions. [2020-09-25 00:56:59,822 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 358 transitions. Word has length 40 [2020-09-25 00:56:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:59,822 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 358 transitions. [2020-09-25 00:56:59,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:56:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 358 transitions. [2020-09-25 00:56:59,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 00:56:59,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:59,826 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:59,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:56:59,827 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:59,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:59,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1348776400, now seen corresponding path program 1 times [2020-09-25 00:56:59,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:59,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113386982] [2020-09-25 00:56:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 00:56:59,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:59,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 00:56:59,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:56:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 00:56:59,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:56:59,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:59,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:59,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:59,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:59,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:59,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:59,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:56:59,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 00:57:00,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113386982] [2020-09-25 00:57:00,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:00,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:00,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370711912] [2020-09-25 00:57:00,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:00,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:00,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:00,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:00,009 INFO L87 Difference]: Start difference. First operand 274 states and 358 transitions. Second operand 3 states. [2020-09-25 00:57:00,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:00,095 INFO L93 Difference]: Finished difference Result 527 states and 700 transitions. [2020-09-25 00:57:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:00,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 00:57:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:00,098 INFO L225 Difference]: With dead ends: 527 [2020-09-25 00:57:00,099 INFO L226 Difference]: Without dead ends: 337 [2020-09-25 00:57:00,100 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 00:57:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-25 00:57:00,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2020-09-25 00:57:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-25 00:57:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 442 transitions. [2020-09-25 00:57:00,119 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 442 transitions. Word has length 70 [2020-09-25 00:57:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:00,120 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 442 transitions. [2020-09-25 00:57:00,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 442 transitions. [2020-09-25 00:57:00,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 00:57:00,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:00,124 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:00,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:57:00,124 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:00,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:00,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1264034378, now seen corresponding path program 1 times [2020-09-25 00:57:00,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:00,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007499208] [2020-09-25 00:57:00,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:00,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:00,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:57:00,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:00,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 00:57:00,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:00,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 00:57:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:57:00,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:00,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:00,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:00,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 00:57:00,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007499208] [2020-09-25 00:57:00,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:00,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:00,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519633424] [2020-09-25 00:57:00,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:00,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:00,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:00,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:00,246 INFO L87 Difference]: Start difference. First operand 335 states and 442 transitions. Second operand 3 states. [2020-09-25 00:57:00,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:00,360 INFO L93 Difference]: Finished difference Result 637 states and 866 transitions. [2020-09-25 00:57:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:00,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 00:57:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:00,363 INFO L225 Difference]: With dead ends: 637 [2020-09-25 00:57:00,363 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 00:57:00,364 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 00:57:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 00:57:00,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2020-09-25 00:57:00,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 00:57:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 299 transitions. [2020-09-25 00:57:00,377 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 299 transitions. Word has length 74 [2020-09-25 00:57:00,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:00,377 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 299 transitions. [2020-09-25 00:57:00,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 299 transitions. [2020-09-25 00:57:00,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 00:57:00,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:00,382 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:00,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:57:00,383 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:00,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:00,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1725408203, now seen corresponding path program 1 times [2020-09-25 00:57:00,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:00,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932337053] [2020-09-25 00:57:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:00,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:00,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:57:00,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:57:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-25 00:57:00,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-25 00:57:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:57:00,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:00,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:00,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:00,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:00,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:00,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:00,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:00,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:00,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:00,890 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-25 00:57:00,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932337053] [2020-09-25 00:57:00,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:00,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:00,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080873193] [2020-09-25 00:57:00,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:00,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:00,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:00,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:00,893 INFO L87 Difference]: Start difference. First operand 240 states and 299 transitions. Second operand 3 states. [2020-09-25 00:57:00,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:00,977 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2020-09-25 00:57:00,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:00,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-09-25 00:57:00,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:00,980 INFO L225 Difference]: With dead ends: 389 [2020-09-25 00:57:00,980 INFO L226 Difference]: Without dead ends: 279 [2020-09-25 00:57:00,981 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 00:57:00,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-25 00:57:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2020-09-25 00:57:00,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-25 00:57:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 338 transitions. [2020-09-25 00:57:00,992 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 338 transitions. Word has length 104 [2020-09-25 00:57:00,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:00,992 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 338 transitions. [2020-09-25 00:57:00,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 338 transitions. [2020-09-25 00:57:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 00:57:00,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:00,994 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:00,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:57:00,995 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:00,995 INFO L82 PathProgramCache]: Analyzing trace with hash 76930614, now seen corresponding path program 1 times [2020-09-25 00:57:00,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:00,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008426454] [2020-09-25 00:57:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 00:57:01,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 00:57:01,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-09-25 00:57:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:57:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:01,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:01,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:01,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:01,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:01,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:01,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:01,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-25 00:57:01,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008426454] [2020-09-25 00:57:01,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:01,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:01,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673089968] [2020-09-25 00:57:01,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:01,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:01,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:01,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:01,290 INFO L87 Difference]: Start difference. First operand 279 states and 338 transitions. Second operand 3 states. [2020-09-25 00:57:01,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:01,354 INFO L93 Difference]: Finished difference Result 412 states and 483 transitions. [2020-09-25 00:57:01,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:01,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-09-25 00:57:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:01,358 INFO L225 Difference]: With dead ends: 412 [2020-09-25 00:57:01,358 INFO L226 Difference]: Without dead ends: 311 [2020-09-25 00:57:01,358 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 00:57:01,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-09-25 00:57:01,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2020-09-25 00:57:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-25 00:57:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 371 transitions. [2020-09-25 00:57:01,369 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 371 transitions. Word has length 119 [2020-09-25 00:57:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:01,370 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 371 transitions. [2020-09-25 00:57:01,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:01,370 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 371 transitions. [2020-09-25 00:57:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-25 00:57:01,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:01,372 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:01,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:57:01,372 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash 633279891, now seen corresponding path program 1 times [2020-09-25 00:57:01,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:01,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361338473] [2020-09-25 00:57:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 00:57:01,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:57:01,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 00:57:01,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-25 00:57:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:57:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:01,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:01,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:01,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:01,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:57:01,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:01,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:01,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:01,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:01,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-09-25 00:57:01,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361338473] [2020-09-25 00:57:01,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:01,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:01,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673298430] [2020-09-25 00:57:01,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:01,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:01,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:01,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:01,712 INFO L87 Difference]: Start difference. First operand 311 states and 371 transitions. Second operand 3 states. [2020-09-25 00:57:01,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:01,791 INFO L93 Difference]: Finished difference Result 498 states and 574 transitions. [2020-09-25 00:57:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:01,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-09-25 00:57:01,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:01,794 INFO L225 Difference]: With dead ends: 498 [2020-09-25 00:57:01,794 INFO L226 Difference]: Without dead ends: 311 [2020-09-25 00:57:01,795 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 00:57:01,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-09-25 00:57:01,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2020-09-25 00:57:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-25 00:57:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 368 transitions. [2020-09-25 00:57:01,809 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 368 transitions. Word has length 137 [2020-09-25 00:57:01,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:01,810 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 368 transitions. [2020-09-25 00:57:01,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 368 transitions. [2020-09-25 00:57:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 00:57:01,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:01,812 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:01,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:57:01,812 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:01,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:01,813 INFO L82 PathProgramCache]: Analyzing trace with hash 561118932, now seen corresponding path program 1 times [2020-09-25 00:57:01,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:01,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424746917] [2020-09-25 00:57:01,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:01,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:02,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 00:57:02,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:57:02,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-09-25 00:57:02,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:02,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:57:02,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-09-25 00:57:02,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:57:02,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:02,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:02,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:02,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:02,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:57:02,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:57:02,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:02,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:02,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:02,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:02,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-09-25 00:57:02,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424746917] [2020-09-25 00:57:02,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:02,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:57:02,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461019736] [2020-09-25 00:57:02,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:57:02,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:02,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:57:02,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:57:02,357 INFO L87 Difference]: Start difference. First operand 311 states and 368 transitions. Second operand 3 states. [2020-09-25 00:57:02,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:02,373 INFO L93 Difference]: Finished difference Result 462 states and 528 transitions. [2020-09-25 00:57:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:57:02,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-09-25 00:57:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:02,375 INFO L225 Difference]: With dead ends: 462 [2020-09-25 00:57:02,375 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:57:02,377 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 00:57:02,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:57:02,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:57:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:57:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:57:02,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 167 [2020-09-25 00:57:02,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:02,379 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:57:02,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:57:02,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:57:02,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:57:02,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:57:02,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:57:02,837 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 00:57:02,837 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:57:02,837 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:57:02,837 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 00:57:02,838 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:57:02,838 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:57:02,838 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 217) no Hoare annotation was computed. [2020-09-25 00:57:02,838 INFO L268 CegarLoopResult]: For program point L151-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 00:57:02,838 INFO L268 CegarLoopResult]: For program point L52(lines 52 193) no Hoare annotation was computed. [2020-09-25 00:57:02,838 INFO L268 CegarLoopResult]: For program point L85-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 00:57:02,838 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 00:57:02,838 INFO L268 CegarLoopResult]: For program point L135(lines 135 139) no Hoare annotation was computed. [2020-09-25 00:57:02,839 INFO L264 CegarLoopResult]: At program point L69(lines 68 185) the Hoare annotation is: (or (and (<= main_~blastFlag~0 3) (= 8656 main_~s__state~0)) (and (<= main_~blastFlag~0 1) (<= 8656 main_~s__state~0))) [2020-09-25 00:57:02,839 INFO L268 CegarLoopResult]: For program point L36(lines 36 201) no Hoare annotation was computed. [2020-09-25 00:57:02,839 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-25 00:57:02,839 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 00:57:02,839 INFO L264 CegarLoopResult]: At program point L53(lines 52 193) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,840 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 00:57:02,840 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-25 00:57:02,840 INFO L268 CegarLoopResult]: For program point L169-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 00:57:02,840 INFO L264 CegarLoopResult]: At program point L37(lines 36 201) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,840 INFO L264 CegarLoopResult]: At program point L120(lines 113 122) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,840 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 217) no Hoare annotation was computed. [2020-09-25 00:57:02,840 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-25 00:57:02,841 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 00:57:02,841 INFO L268 CegarLoopResult]: For program point L105(lines 105 123) no Hoare annotation was computed. [2020-09-25 00:57:02,841 INFO L268 CegarLoopResult]: For program point L72(lines 72 183) no Hoare annotation was computed. [2020-09-25 00:57:02,842 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-25 00:57:02,842 INFO L268 CegarLoopResult]: For program point L56(lines 56 191) no Hoare annotation was computed. [2020-09-25 00:57:02,842 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 00:57:02,842 INFO L268 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2020-09-25 00:57:02,842 INFO L268 CegarLoopResult]: For program point L106(lines 106 110) no Hoare annotation was computed. [2020-09-25 00:57:02,842 INFO L264 CegarLoopResult]: At program point L73(lines 72 183) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8656 main_~s__state~0)) [2020-09-25 00:57:02,843 INFO L268 CegarLoopResult]: For program point L40(lines 40 199) no Hoare annotation was computed. [2020-09-25 00:57:02,843 INFO L264 CegarLoopResult]: At program point L57(lines 56 191) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,843 INFO L264 CegarLoopResult]: At program point L173(lines 8 217) the Hoare annotation is: false [2020-09-25 00:57:02,843 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 00:57:02,845 INFO L264 CegarLoopResult]: At program point L41(lines 40 199) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,845 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-25 00:57:02,846 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 00:57:02,846 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-25 00:57:02,846 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 00:57:02,846 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-25 00:57:02,846 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-25 00:57:02,846 INFO L268 CegarLoopResult]: For program point L60(lines 60 189) no Hoare annotation was computed. [2020-09-25 00:57:02,847 INFO L264 CegarLoopResult]: At program point L176(lines 22 211) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3)) (.cse1 (<= main_~s__state~0 8640))) (or (and .cse0 (<= 8656 main_~s__state~0)) (and (<= 8640 main_~s__state~0) .cse0 (not (= main_~s__hit~0 0)) .cse1) (and (<= main_~blastFlag~0 2) .cse1) (<= main_~blastFlag~0 1))) [2020-09-25 00:57:02,847 INFO L268 CegarLoopResult]: For program point L44(lines 44 197) no Hoare annotation was computed. [2020-09-25 00:57:02,847 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 00:57:02,847 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 00:57:02,847 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 00:57:02,847 INFO L264 CegarLoopResult]: At program point L61(lines 60 189) the Hoare annotation is: (or (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) (<= main_~blastFlag~0 1)) [2020-09-25 00:57:02,847 INFO L268 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-09-25 00:57:02,848 INFO L264 CegarLoopResult]: At program point L45(lines 44 197) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,848 INFO L268 CegarLoopResult]: For program point L78-1(lines 78 80) no Hoare annotation was computed. [2020-09-25 00:57:02,848 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 00:57:02,848 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 00:57:02,848 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 00:57:02,848 INFO L268 CegarLoopResult]: For program point L29(lines 29 204) no Hoare annotation was computed. [2020-09-25 00:57:02,848 INFO L264 CegarLoopResult]: At program point L112(lines 105 123) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,849 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-25 00:57:02,849 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 00:57:02,849 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 00:57:02,849 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 00:57:02,849 INFO L268 CegarLoopResult]: For program point L162-1(lines 162 164) no Hoare annotation was computed. [2020-09-25 00:57:02,849 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-25 00:57:02,850 INFO L264 CegarLoopResult]: At program point L30(lines 29 204) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,850 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 217) the Hoare annotation is: true [2020-09-25 00:57:02,850 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 00:57:02,851 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-25 00:57:02,851 INFO L268 CegarLoopResult]: For program point L64(lines 64 187) no Hoare annotation was computed. [2020-09-25 00:57:02,852 INFO L271 CegarLoopResult]: At program point L213(lines 8 217) the Hoare annotation is: true [2020-09-25 00:57:02,852 INFO L268 CegarLoopResult]: For program point L114(lines 114 118) no Hoare annotation was computed. [2020-09-25 00:57:02,852 INFO L268 CegarLoopResult]: For program point L48(lines 48 195) no Hoare annotation was computed. [2020-09-25 00:57:02,853 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 00:57:02,853 INFO L264 CegarLoopResult]: At program point L65(lines 64 187) the Hoare annotation is: (let ((.cse1 (<= main_~s__state~0 8640)) (.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0)) .cse1) (and .cse0 (<= main_~blastFlag~0 2) .cse1) (and .cse0 (<= main_~blastFlag~0 1)))) [2020-09-25 00:57:02,853 INFO L268 CegarLoopResult]: For program point L32(lines 32 203) no Hoare annotation was computed. [2020-09-25 00:57:02,856 INFO L264 CegarLoopResult]: At program point L49(lines 48 195) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,856 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 00:57:02,857 INFO L264 CegarLoopResult]: At program point L33(lines 32 203) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= main_~s__state~0 8640)) [2020-09-25 00:57:02,857 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 00:57:02,857 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 00:57:02,857 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 00:57:02,857 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 00:57:02,857 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-25 00:57:02,857 INFO L268 CegarLoopResult]: For program point L68(lines 68 185) no Hoare annotation was computed. [2020-09-25 00:57:02,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:57:02 BoogieIcfgContainer [2020-09-25 00:57:02,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:57:02,916 INFO L168 Benchmark]: Toolchain (without parser) took 5800.95 ms. Allocated memory was 145.8 MB in the beginning and 289.4 MB in the end (delta: 143.7 MB). Free memory was 100.7 MB in the beginning and 152.7 MB in the end (delta: -51.9 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:02,917 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:57:02,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.62 ms. Allocated memory is still 145.8 MB. Free memory was 100.0 MB in the beginning and 89.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:02,925 INFO L168 Benchmark]: Boogie Preprocessor took 134.57 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 89.0 MB in the beginning and 179.7 MB in the end (delta: -90.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:02,927 INFO L168 Benchmark]: RCFGBuilder took 498.74 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 157.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:02,928 INFO L168 Benchmark]: TraceAbstraction took 4822.17 ms. Allocated memory was 201.9 MB in the beginning and 289.4 MB in the end (delta: 87.6 MB). Free memory was 157.2 MB in the beginning and 152.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:02,936 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 333.62 ms. Allocated memory is still 145.8 MB. Free memory was 100.0 MB in the beginning and 89.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.57 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 89.0 MB in the beginning and 179.7 MB in the end (delta: -90.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 498.74 ms. Allocated memory is still 201.9 MB. Free memory was 179.7 MB in the beginning and 157.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4822.17 ms. Allocated memory was 201.9 MB in the beginning and 289.4 MB in the end (delta: 87.6 MB). Free memory was 157.2 MB in the beginning and 152.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 92.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 215]: 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: 32]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) && s__state <= 8640) || ((8640 <= s__state && blastFlag <= 2) && s__state <= 8640)) || (8640 <= s__state && blastFlag <= 1) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (blastFlag <= 3 && 8656 == s__state) || (blastFlag <= 1 && 8656 <= s__state) - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((blastFlag <= 3 && 8656 <= s__state) || (((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) && s__state <= 8640)) || (blastFlag <= 2 && s__state <= 8640)) || blastFlag <= 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && s__state <= 8640) || blastFlag <= 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8656 <= s__state - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state <= 8640 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 10, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 996 SDtfs, 367 SDslu, 688 SDs, 0 SdLazy, 323 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 89 NumberOfFragments, 173 HoareAnnotationTreeSize, 21 FomulaSimplifications, 688 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 83 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 799 ConstructedInterpolants, 0 QuantifiedInterpolants, 110203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 1036/1036 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...