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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:15:17,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:15:17,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:15:17,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:15:17,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:15:17,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:15:17,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:15:17,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:15:17,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:15:17,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:15:17,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:15:17,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:15:17,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:15:17,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:15:17,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:15:17,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:15:17,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:15:17,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:15:17,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:15:17,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:15:17,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:15:17,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:15:17,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:15:17,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:15:17,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:15:17,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:15:17,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:15:17,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:15:17,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:15:17,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:15:17,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:15:17,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:15:17,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:15:17,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:15:17,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:15:17,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:15:17,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:15:17,141 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:15:17,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:15:17,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:15:17,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:15:17,145 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:15:17,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:15:17,145 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:15:17,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:15:17,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:15:17,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:15:17,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:15:17,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:15:17,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:15:17,148 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:15:17,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:15:17,148 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:15:17,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:15:17,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:15:17,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:15:17,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:15:17,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:15:17,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:15:17,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:15:17,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:15:17,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:15:17,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:15:17,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:15:17,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:15:17,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:15:17,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:15:17,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:15:17,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:15:17,458 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:15:17,459 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:15:17,459 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+sep-reducer.c [2019-10-14 23:15:17,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2968b3bc/8ad43895feef4f71aa3a09d7ee9349a9/FLAG806c30b2e [2019-10-14 23:15:18,177 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:15:18,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+sep-reducer.c [2019-10-14 23:15:18,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2968b3bc/8ad43895feef4f71aa3a09d7ee9349a9/FLAG806c30b2e [2019-10-14 23:15:18,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2968b3bc/8ad43895feef4f71aa3a09d7ee9349a9 [2019-10-14 23:15:18,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:15:18,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:15:18,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:18,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:15:18,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:15:18,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:18" (1/1) ... [2019-10-14 23:15:18,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69200ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:18, skipping insertion in model container [2019-10-14 23:15:18,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:18" (1/1) ... [2019-10-14 23:15:18,480 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:15:18,590 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:15:19,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:19,544 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:15:19,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:19,877 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:15:19,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19 WrapperNode [2019-10-14 23:15:19,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:19,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:15:19,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:15:19,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:15:19,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... [2019-10-14 23:15:19,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... [2019-10-14 23:15:19,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... [2019-10-14 23:15:19,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... [2019-10-14 23:15:20,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... [2019-10-14 23:15:20,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... [2019-10-14 23:15:20,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... [2019-10-14 23:15:20,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:15:20,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:15:20,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:15:20,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:15:20,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-14 23:15:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:15:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:15:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:15:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:15:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:15:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:15:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:15:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:15:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:15:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:15:22,463 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:15:22,463 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:15:22,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:22 BoogieIcfgContainer [2019-10-14 23:15:22,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:15:22,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:15:22,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:15:22,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:15:22,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:15:18" (1/3) ... [2019-10-14 23:15:22,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c1cf64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:22, skipping insertion in model container [2019-10-14 23:15:22,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:19" (2/3) ... [2019-10-14 23:15:22,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c1cf64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:22, skipping insertion in model container [2019-10-14 23:15:22,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:22" (3/3) ... [2019-10-14 23:15:22,474 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+sep-reducer.c [2019-10-14 23:15:22,484 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:15:22,493 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-10-14 23:15:22,505 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-10-14 23:15:22,537 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:15:22,537 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:15:22,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:15:22,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:15:22,538 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:15:22,538 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:15:22,538 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:15:22,538 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:15:22,570 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states. [2019-10-14 23:15:22,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-14 23:15:22,577 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:22,579 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:22,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:22,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:22,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1514750688, now seen corresponding path program 1 times [2019-10-14 23:15:22,596 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:22,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297209552] [2019-10-14 23:15:22,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:22,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:22,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:22,951 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297209552] [2019-10-14 23:15:22,952 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:22,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:15:22,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013984196] [2019-10-14 23:15:22,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:15:22,959 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:22,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:15:22,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:15:22,977 INFO L87 Difference]: Start difference. First operand 480 states. Second operand 5 states. [2019-10-14 23:15:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:25,605 INFO L93 Difference]: Finished difference Result 499 states and 926 transitions. [2019-10-14 23:15:25,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:15:25,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-14 23:15:25,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:25,625 INFO L225 Difference]: With dead ends: 499 [2019-10-14 23:15:25,625 INFO L226 Difference]: Without dead ends: 306 [2019-10-14 23:15:25,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:15:25,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-10-14 23:15:25,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 301. [2019-10-14 23:15:25,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-10-14 23:15:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 364 transitions. [2019-10-14 23:15:25,697 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 364 transitions. Word has length 11 [2019-10-14 23:15:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:25,697 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 364 transitions. [2019-10-14 23:15:25,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:15:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 364 transitions. [2019-10-14 23:15:25,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:15:25,699 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:25,699 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:25,699 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:25,700 INFO L82 PathProgramCache]: Analyzing trace with hash 287371989, now seen corresponding path program 1 times [2019-10-14 23:15:25,700 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:25,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184960001] [2019-10-14 23:15:25,701 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:25,701 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:25,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:25,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184960001] [2019-10-14 23:15:25,835 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:25,835 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:15:25,835 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321290413] [2019-10-14 23:15:25,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:15:25,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:25,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:15:25,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:15:25,839 INFO L87 Difference]: Start difference. First operand 301 states and 364 transitions. Second operand 5 states. [2019-10-14 23:15:26,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:26,817 INFO L93 Difference]: Finished difference Result 304 states and 367 transitions. [2019-10-14 23:15:26,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:15:26,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-14 23:15:26,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:26,820 INFO L225 Difference]: With dead ends: 304 [2019-10-14 23:15:26,821 INFO L226 Difference]: Without dead ends: 296 [2019-10-14 23:15:26,822 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:15:26,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-10-14 23:15:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2019-10-14 23:15:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2019-10-14 23:15:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 299 transitions. [2019-10-14 23:15:26,866 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 299 transitions. Word has length 12 [2019-10-14 23:15:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:26,867 INFO L462 AbstractCegarLoop]: Abstraction has 296 states and 299 transitions. [2019-10-14 23:15:26,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:15:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 299 transitions. [2019-10-14 23:15:26,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-14 23:15:26,878 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:26,880 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:26,880 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:26,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1097283636, now seen corresponding path program 1 times [2019-10-14 23:15:26,882 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:26,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495773559] [2019-10-14 23:15:26,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:26,884 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:26,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:29,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495773559] [2019-10-14 23:15:29,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:29,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2019-10-14 23:15:29,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261316773] [2019-10-14 23:15:29,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2019-10-14 23:15:29,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:29,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2019-10-14 23:15:29,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=2138, Unknown=0, NotChecked=0, Total=4032 [2019-10-14 23:15:29,384 INFO L87 Difference]: Start difference. First operand 296 states and 299 transitions. Second operand 64 states. [2019-10-14 23:15:34,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:34,494 INFO L93 Difference]: Finished difference Result 297 states and 300 transitions. [2019-10-14 23:15:34,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2019-10-14 23:15:34,497 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 248 [2019-10-14 23:15:34,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:34,501 INFO L225 Difference]: With dead ends: 297 [2019-10-14 23:15:34,501 INFO L226 Difference]: Without dead ends: 295 [2019-10-14 23:15:34,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2003 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5673, Invalid=9579, Unknown=0, NotChecked=0, Total=15252 [2019-10-14 23:15:34,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2019-10-14 23:15:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 294. [2019-10-14 23:15:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-10-14 23:15:34,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 297 transitions. [2019-10-14 23:15:34,519 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 297 transitions. Word has length 248 [2019-10-14 23:15:34,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:34,521 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 297 transitions. [2019-10-14 23:15:34,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 64 states. [2019-10-14 23:15:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 297 transitions. [2019-10-14 23:15:34,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-14 23:15:34,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:34,526 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:34,527 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:34,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:34,527 INFO L82 PathProgramCache]: Analyzing trace with hash -343940819, now seen corresponding path program 1 times [2019-10-14 23:15:34,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:34,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117570840] [2019-10-14 23:15:34,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:34,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:34,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:35,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117570840] [2019-10-14 23:15:35,464 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:35,465 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:15:35,465 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803436043] [2019-10-14 23:15:35,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:15:35,466 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:35,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:15:35,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:15:35,467 INFO L87 Difference]: Start difference. First operand 294 states and 297 transitions. Second operand 7 states. [2019-10-14 23:15:36,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:36,383 INFO L93 Difference]: Finished difference Result 296 states and 299 transitions. [2019-10-14 23:15:36,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:15:36,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2019-10-14 23:15:36,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:36,387 INFO L225 Difference]: With dead ends: 296 [2019-10-14 23:15:36,387 INFO L226 Difference]: Without dead ends: 294 [2019-10-14 23:15:36,388 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 120 SyntacticMatches, 59 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:15:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-10-14 23:15:36,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2019-10-14 23:15:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-10-14 23:15:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 295 transitions. [2019-10-14 23:15:36,397 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 295 transitions. Word has length 249 [2019-10-14 23:15:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:36,398 INFO L462 AbstractCegarLoop]: Abstraction has 292 states and 295 transitions. [2019-10-14 23:15:36,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:15:36,398 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 295 transitions. [2019-10-14 23:15:36,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-14 23:15:36,402 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:36,403 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:36,403 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:36,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1455800989, now seen corresponding path program 1 times [2019-10-14 23:15:36,404 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:36,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834404250] [2019-10-14 23:15:36,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:36,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:36,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:38,472 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834404250] [2019-10-14 23:15:38,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:38,472 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2019-10-14 23:15:38,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867064259] [2019-10-14 23:15:38,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2019-10-14 23:15:38,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:38,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2019-10-14 23:15:38,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2019, Invalid=2271, Unknown=0, NotChecked=0, Total=4290 [2019-10-14 23:15:38,477 INFO L87 Difference]: Start difference. First operand 292 states and 295 transitions. Second operand 66 states. [2019-10-14 23:15:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:43,482 INFO L93 Difference]: Finished difference Result 295 states and 298 transitions. [2019-10-14 23:15:43,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-10-14 23:15:43,484 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 252 [2019-10-14 23:15:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:43,486 INFO L225 Difference]: With dead ends: 295 [2019-10-14 23:15:43,486 INFO L226 Difference]: Without dead ends: 293 [2019-10-14 23:15:43,492 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2071 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5923, Invalid=10079, Unknown=0, NotChecked=0, Total=16002 [2019-10-14 23:15:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2019-10-14 23:15:43,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2019-10-14 23:15:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-10-14 23:15:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 293 transitions. [2019-10-14 23:15:43,503 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 293 transitions. Word has length 252 [2019-10-14 23:15:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:43,504 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 293 transitions. [2019-10-14 23:15:43,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 66 states. [2019-10-14 23:15:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 293 transitions. [2019-10-14 23:15:43,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-14 23:15:43,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:43,513 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:43,514 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:43,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:43,514 INFO L82 PathProgramCache]: Analyzing trace with hash -2114804744, now seen corresponding path program 1 times [2019-10-14 23:15:43,514 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:43,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678230282] [2019-10-14 23:15:43,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:43,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:43,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:44,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678230282] [2019-10-14 23:15:44,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:44,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:15:44,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658611209] [2019-10-14 23:15:44,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:15:44,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:15:44,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:15:44,380 INFO L87 Difference]: Start difference. First operand 290 states and 293 transitions. Second operand 7 states. [2019-10-14 23:15:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:45,293 INFO L93 Difference]: Finished difference Result 290 states and 293 transitions. [2019-10-14 23:15:45,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:15:45,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2019-10-14 23:15:45,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:45,298 INFO L225 Difference]: With dead ends: 290 [2019-10-14 23:15:45,298 INFO L226 Difference]: Without dead ends: 288 [2019-10-14 23:15:45,298 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 122 SyntacticMatches, 60 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:15:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2019-10-14 23:15:45,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2019-10-14 23:15:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2019-10-14 23:15:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 291 transitions. [2019-10-14 23:15:45,306 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 291 transitions. Word has length 253 [2019-10-14 23:15:45,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:45,307 INFO L462 AbstractCegarLoop]: Abstraction has 288 states and 291 transitions. [2019-10-14 23:15:45,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:15:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 291 transitions. [2019-10-14 23:15:45,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-14 23:15:45,311 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:45,311 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:45,312 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:45,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:45,312 INFO L82 PathProgramCache]: Analyzing trace with hash -807674468, now seen corresponding path program 1 times [2019-10-14 23:15:45,313 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:45,313 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821379185] [2019-10-14 23:15:45,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:45,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:45,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:47,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821379185] [2019-10-14 23:15:47,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:47,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2019-10-14 23:15:47,608 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887493635] [2019-10-14 23:15:47,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-10-14 23:15:47,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:47,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-10-14 23:15:47,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2083, Invalid=2339, Unknown=0, NotChecked=0, Total=4422 [2019-10-14 23:15:47,610 INFO L87 Difference]: Start difference. First operand 288 states and 291 transitions. Second operand 67 states. [2019-10-14 23:15:52,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:52,660 INFO L93 Difference]: Finished difference Result 298 states and 302 transitions. [2019-10-14 23:15:52,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-10-14 23:15:52,660 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 255 [2019-10-14 23:15:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:52,664 INFO L225 Difference]: With dead ends: 298 [2019-10-14 23:15:52,664 INFO L226 Difference]: Without dead ends: 296 [2019-10-14 23:15:52,669 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2135 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=5988, Invalid=10268, Unknown=0, NotChecked=0, Total=16256 [2019-10-14 23:15:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-10-14 23:15:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 286. [2019-10-14 23:15:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2019-10-14 23:15:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 289 transitions. [2019-10-14 23:15:52,676 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 289 transitions. Word has length 255 [2019-10-14 23:15:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:52,677 INFO L462 AbstractCegarLoop]: Abstraction has 286 states and 289 transitions. [2019-10-14 23:15:52,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-10-14 23:15:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 289 transitions. [2019-10-14 23:15:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-14 23:15:52,678 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:52,679 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:52,679 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:52,680 INFO L82 PathProgramCache]: Analyzing trace with hash 731900137, now seen corresponding path program 1 times [2019-10-14 23:15:52,680 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:52,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039835508] [2019-10-14 23:15:52,680 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:52,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:52,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:52,924 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039835508] [2019-10-14 23:15:52,924 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:52,924 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:15:52,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285085926] [2019-10-14 23:15:52,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:15:52,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:52,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:15:52,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:15:52,926 INFO L87 Difference]: Start difference. First operand 286 states and 289 transitions. Second operand 5 states. [2019-10-14 23:15:53,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:53,562 INFO L93 Difference]: Finished difference Result 286 states and 289 transitions. [2019-10-14 23:15:53,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:15:53,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2019-10-14 23:15:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:53,565 INFO L225 Difference]: With dead ends: 286 [2019-10-14 23:15:53,565 INFO L226 Difference]: Without dead ends: 282 [2019-10-14 23:15:53,566 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:15:53,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2019-10-14 23:15:53,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2019-10-14 23:15:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-10-14 23:15:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 285 transitions. [2019-10-14 23:15:53,573 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 285 transitions. Word has length 256 [2019-10-14 23:15:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:53,573 INFO L462 AbstractCegarLoop]: Abstraction has 282 states and 285 transitions. [2019-10-14 23:15:53,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:15:53,574 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 285 transitions. [2019-10-14 23:15:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-14 23:15:53,575 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:53,576 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:53,576 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:53,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:53,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1228876781, now seen corresponding path program 1 times [2019-10-14 23:15:53,577 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:53,577 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980376429] [2019-10-14 23:15:53,577 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:53,578 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:53,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat