/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:30:56,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:30:56,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:30:56,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:30:56,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:30:56,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:30:56,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:30:56,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:30:56,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:30:56,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:30:56,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:30:56,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:30:56,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:30:56,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:30:56,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:30:56,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:30:56,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:30:56,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:30:56,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:30:56,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:30:56,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:30:56,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:30:56,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:30:56,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:30:56,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 04:30:56,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:30:56,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:30:56,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:30:56,581 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 [2020-08-19 04:30:56,624 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:30:56,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:30:56,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:30:56,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:30:56,627 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:30:56,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:30:56,627 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:30:56,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:30:56,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:30:56,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:30:56,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:30:56,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:30:56,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:30:56,630 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:30:56,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:30:56,630 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:30:56,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:30:56,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:30:56,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:30:56,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:30:56,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:30:56,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:30:56,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:30:56,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:30:56,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:30:56,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:30:56,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:30:56,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:30:56,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:30:56,633 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:30:56,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:30:56,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:30:56,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:30:57,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:30:57,001 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:30:57,001 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-19 04:30:57,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d32d0a711/e269356c863740e9b05b8520f992b942/FLAG72339f1cf [2020-08-19 04:30:57,567 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:30:57,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-19 04:30:57,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d32d0a711/e269356c863740e9b05b8520f992b942/FLAG72339f1cf [2020-08-19 04:30:57,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d32d0a711/e269356c863740e9b05b8520f992b942 [2020-08-19 04:30:57,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:30:57,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:30:57,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:57,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:30:57,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:30:57,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:57" (1/1) ... [2020-08-19 04:30:57,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f73553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:57, skipping insertion in model container [2020-08-19 04:30:57,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:57" (1/1) ... [2020-08-19 04:30:57,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:30:58,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:30:58,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:58,262 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:30:58,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:58,448 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:30:58,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58 WrapperNode [2020-08-19 04:30:58,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:58,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:30:58,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:30:58,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:30:58,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (1/1) ... [2020-08-19 04:30:58,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (1/1) ... [2020-08-19 04:30:58,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (1/1) ... [2020-08-19 04:30:58,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (1/1) ... [2020-08-19 04:30:58,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (1/1) ... [2020-08-19 04:30:58,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (1/1) ... [2020-08-19 04:30:58,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (1/1) ... [2020-08-19 04:30:58,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:30:58,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:30:58,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:30:58,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:30:58,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (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 [2020-08-19 04:30:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:30:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:30:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 04:30:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:30:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:30:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 04:30:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 04:30:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 04:30:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:30:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:30:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:30:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:30:59,012 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:30:59,013 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 04:30:59,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:59 BoogieIcfgContainer [2020-08-19 04:30:59,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:30:59,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:30:59,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:30:59,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:30:59,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:30:57" (1/3) ... [2020-08-19 04:30:59,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78907d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:59, skipping insertion in model container [2020-08-19 04:30:59,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:58" (2/3) ... [2020-08-19 04:30:59,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78907d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:59, skipping insertion in model container [2020-08-19 04:30:59,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:59" (3/3) ... [2020-08-19 04:30:59,032 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-08-19 04:30:59,044 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:30:59,052 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-08-19 04:30:59,067 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-08-19 04:30:59,096 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:30:59,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:30:59,096 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:30:59,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:30:59,097 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:30:59,097 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:30:59,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:30:59,097 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:30:59,123 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-08-19 04:30:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 04:30:59,131 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:59,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:30:59,134 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:59,141 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-08-19 04:30:59,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:59,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41011400] [2020-08-19 04:30:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:59,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:30:59,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41011400] [2020-08-19 04:30:59,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:59,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 04:30:59,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556974041] [2020-08-19 04:30:59,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 04:30:59,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:59,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 04:30:59,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 04:30:59,419 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-08-19 04:30:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:59,541 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-08-19 04:30:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 04:30:59,543 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-08-19 04:30:59,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:59,556 INFO L225 Difference]: With dead ends: 93 [2020-08-19 04:30:59,556 INFO L226 Difference]: Without dead ends: 80 [2020-08-19 04:30:59,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:30:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-08-19 04:30:59,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-08-19 04:30:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-08-19 04:30:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-08-19 04:30:59,613 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-08-19 04:30:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:59,614 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-08-19 04:30:59,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 04:30:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-08-19 04:30:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-19 04:30:59,615 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:59,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:30:59,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:30:59,616 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:59,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:59,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-08-19 04:30:59,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:59,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063978948] [2020-08-19 04:30:59,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:59,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:59,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:30:59,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063978948] [2020-08-19 04:30:59,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:59,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 04:30:59,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918986171] [2020-08-19 04:30:59,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 04:30:59,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:59,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 04:30:59,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:30:59,746 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-08-19 04:30:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:59,931 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-08-19 04:30:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:30:59,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-08-19 04:30:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:59,934 INFO L225 Difference]: With dead ends: 80 [2020-08-19 04:30:59,934 INFO L226 Difference]: Without dead ends: 78 [2020-08-19 04:30:59,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:30:59,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-19 04:30:59,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-08-19 04:30:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-19 04:30:59,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-08-19 04:30:59,965 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-08-19 04:30:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:59,985 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-08-19 04:30:59,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 04:30:59,985 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-08-19 04:30:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-19 04:30:59,986 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:59,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:30:59,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:30:59,987 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:59,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-08-19 04:30:59,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:59,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643766644] [2020-08-19 04:30:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:00,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:00,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:00,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643766644] [2020-08-19 04:31:00,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:00,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:31:00,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600835582] [2020-08-19 04:31:00,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:31:00,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:00,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:31:00,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:31:00,061 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-08-19 04:31:00,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:00,241 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-08-19 04:31:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:00,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-08-19 04:31:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:00,243 INFO L225 Difference]: With dead ends: 101 [2020-08-19 04:31:00,243 INFO L226 Difference]: Without dead ends: 99 [2020-08-19 04:31:00,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-19 04:31:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-19 04:31:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-08-19 04:31:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-19 04:31:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-08-19 04:31:00,253 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-08-19 04:31:00,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:00,254 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-08-19 04:31:00,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:31:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-08-19 04:31:00,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-19 04:31:00,255 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:00,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:00,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:31:00,256 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:00,256 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-08-19 04:31:00,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:00,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343981080] [2020-08-19 04:31:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:00,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:00,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343981080] [2020-08-19 04:31:00,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:00,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:00,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002969574] [2020-08-19 04:31:00,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:00,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:00,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:00,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:00,325 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-08-19 04:31:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:00,451 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-19 04:31:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:00,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-19 04:31:00,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:00,453 INFO L225 Difference]: With dead ends: 76 [2020-08-19 04:31:00,453 INFO L226 Difference]: Without dead ends: 74 [2020-08-19 04:31:00,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-19 04:31:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-19 04:31:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-19 04:31:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-08-19 04:31:00,461 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-08-19 04:31:00,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:00,462 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-08-19 04:31:00,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:00,462 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-08-19 04:31:00,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 04:31:00,463 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:00,463 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] [2020-08-19 04:31:00,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:31:00,464 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:00,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:00,465 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-08-19 04:31:00,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:00,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675983735] [2020-08-19 04:31:00,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:00,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:00,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675983735] [2020-08-19 04:31:00,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:00,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:00,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927997660] [2020-08-19 04:31:00,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:00,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:00,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:00,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:00,559 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-08-19 04:31:01,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:01,034 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-08-19 04:31:01,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 04:31:01,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-19 04:31:01,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:01,037 INFO L225 Difference]: With dead ends: 141 [2020-08-19 04:31:01,038 INFO L226 Difference]: Without dead ends: 139 [2020-08-19 04:31:01,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:31:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-19 04:31:01,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-08-19 04:31:01,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-19 04:31:01,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-19 04:31:01,061 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-08-19 04:31:01,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:01,061 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-19 04:31:01,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-19 04:31:01,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 04:31:01,064 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:01,065 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] [2020-08-19 04:31:01,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 04:31:01,066 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:01,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:01,066 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-08-19 04:31:01,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:01,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098404529] [2020-08-19 04:31:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:01,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:01,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098404529] [2020-08-19 04:31:01,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:01,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:01,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643410177] [2020-08-19 04:31:01,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:01,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:01,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:01,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:01,187 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-19 04:31:01,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:01,539 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2020-08-19 04:31:01,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 04:31:01,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-19 04:31:01,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:01,542 INFO L225 Difference]: With dead ends: 108 [2020-08-19 04:31:01,542 INFO L226 Difference]: Without dead ends: 106 [2020-08-19 04:31:01,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:31:01,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-08-19 04:31:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2020-08-19 04:31:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-08-19 04:31:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-08-19 04:31:01,565 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-08-19 04:31:01,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:01,565 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-08-19 04:31:01,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-08-19 04:31:01,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-19 04:31:01,567 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:01,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:01,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 04:31:01,571 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:01,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:01,572 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-08-19 04:31:01,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:01,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095495926] [2020-08-19 04:31:01,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:01,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:01,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095495926] [2020-08-19 04:31:01,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:01,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:01,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040859103] [2020-08-19 04:31:01,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:01,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:01,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:01,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:01,684 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-08-19 04:31:01,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:01,922 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-08-19 04:31:01,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:01,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-19 04:31:01,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:01,924 INFO L225 Difference]: With dead ends: 121 [2020-08-19 04:31:01,924 INFO L226 Difference]: Without dead ends: 119 [2020-08-19 04:31:01,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-08-19 04:31:01,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-08-19 04:31:01,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-19 04:31:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-19 04:31:01,942 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-08-19 04:31:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:01,942 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-19 04:31:01,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:01,943 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-19 04:31:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-19 04:31:01,945 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:01,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:01,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 04:31:01,946 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:01,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:01,946 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-08-19 04:31:01,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:01,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611275637] [2020-08-19 04:31:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:02,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611275637] [2020-08-19 04:31:02,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:02,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:02,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401600203] [2020-08-19 04:31:02,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:02,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:02,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:02,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:02,033 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-19 04:31:02,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:02,211 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-19 04:31:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:02,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-19 04:31:02,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:02,212 INFO L225 Difference]: With dead ends: 77 [2020-08-19 04:31:02,213 INFO L226 Difference]: Without dead ends: 75 [2020-08-19 04:31:02,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-19 04:31:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-19 04:31:02,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-19 04:31:02,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-08-19 04:31:02,221 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-08-19 04:31:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:02,221 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-08-19 04:31:02,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:02,222 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-08-19 04:31:02,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-19 04:31:02,228 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:02,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:02,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 04:31:02,228 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:02,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:02,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-08-19 04:31:02,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:02,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401184816] [2020-08-19 04:31:02,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:02,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401184816] [2020-08-19 04:31:02,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:02,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 04:31:02,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469133381] [2020-08-19 04:31:02,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 04:31:02,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:02,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 04:31:02,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 04:31:02,282 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 4 states. [2020-08-19 04:31:02,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:02,439 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-08-19 04:31:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 04:31:02,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-08-19 04:31:02,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:02,441 INFO L225 Difference]: With dead ends: 115 [2020-08-19 04:31:02,441 INFO L226 Difference]: Without dead ends: 75 [2020-08-19 04:31:02,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:31:02,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-19 04:31:02,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-19 04:31:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-19 04:31:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-08-19 04:31:02,457 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-08-19 04:31:02,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:02,458 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-08-19 04:31:02,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 04:31:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-08-19 04:31:02,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-19 04:31:02,459 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:02,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:02,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 04:31:02,461 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:02,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-08-19 04:31:02,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:02,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326020058] [2020-08-19 04:31:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:02,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326020058] [2020-08-19 04:31:02,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:02,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:02,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143334783] [2020-08-19 04:31:02,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:02,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:02,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:02,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:02,576 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2020-08-19 04:31:02,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:02,724 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-19 04:31:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:31:02,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-19 04:31:02,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:02,725 INFO L225 Difference]: With dead ends: 76 [2020-08-19 04:31:02,726 INFO L226 Difference]: Without dead ends: 74 [2020-08-19 04:31:02,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:31:02,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-19 04:31:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-08-19 04:31:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-08-19 04:31:02,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-08-19 04:31:02,731 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-08-19 04:31:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:02,731 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-08-19 04:31:02,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-08-19 04:31:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-19 04:31:02,732 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:02,733 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:02,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 04:31:02,733 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:02,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-08-19 04:31:02,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:02,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889823521] [2020-08-19 04:31:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 04:31:02,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889823521] [2020-08-19 04:31:02,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:31:02,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-19 04:31:02,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250706314] [2020-08-19 04:31:02,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:02,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:02,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:02,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:02,812 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 6 states. [2020-08-19 04:31:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:03,008 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-08-19 04:31:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:31:03,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-19 04:31:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:03,009 INFO L225 Difference]: With dead ends: 111 [2020-08-19 04:31:03,011 INFO L226 Difference]: Without dead ends: 109 [2020-08-19 04:31:03,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:31:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-19 04:31:03,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-08-19 04:31:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-19 04:31:03,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-08-19 04:31:03,018 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-08-19 04:31:03,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:03,021 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-08-19 04:31:03,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:03,021 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-08-19 04:31:03,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-19 04:31:03,023 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:03,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:03,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 04:31:03,024 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:03,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:03,025 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-08-19 04:31:03,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:03,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261899784] [2020-08-19 04:31:03,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:03,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261899784] [2020-08-19 04:31:03,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:03,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:03,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810702552] [2020-08-19 04:31:03,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:03,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:03,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:03,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:03,113 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2020-08-19 04:31:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:03,250 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-19 04:31:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:03,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-19 04:31:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:03,252 INFO L225 Difference]: With dead ends: 70 [2020-08-19 04:31:03,252 INFO L226 Difference]: Without dead ends: 68 [2020-08-19 04:31:03,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-19 04:31:03,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-19 04:31:03,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-19 04:31:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-08-19 04:31:03,260 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-08-19 04:31:03,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:03,263 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-08-19 04:31:03,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:03,264 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-08-19 04:31:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-19 04:31:03,264 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:03,264 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:03,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 04:31:03,265 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:03,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:03,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-08-19 04:31:03,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:03,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391697889] [2020-08-19 04:31:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 04:31:03,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391697889] [2020-08-19 04:31:03,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:31:03,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-19 04:31:03,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933572459] [2020-08-19 04:31:03,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:03,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:03,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:03,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:03,356 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 6 states. [2020-08-19 04:31:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:03,478 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-08-19 04:31:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:31:03,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-19 04:31:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:03,479 INFO L225 Difference]: With dead ends: 69 [2020-08-19 04:31:03,479 INFO L226 Difference]: Without dead ends: 67 [2020-08-19 04:31:03,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:31:03,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-19 04:31:03,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-08-19 04:31:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-08-19 04:31:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-08-19 04:31:03,484 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-08-19 04:31:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:03,485 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-08-19 04:31:03,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-08-19 04:31:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-19 04:31:03,485 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:03,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:03,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-19 04:31:03,486 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:03,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:03,487 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-08-19 04:31:03,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:03,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926875434] [2020-08-19 04:31:03,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:03,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926875434] [2020-08-19 04:31:03,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:03,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:03,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620879327] [2020-08-19 04:31:03,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:03,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:03,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:03,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:03,579 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 6 states. [2020-08-19 04:31:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:03,702 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-08-19 04:31:03,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:31:03,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-08-19 04:31:03,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:03,703 INFO L225 Difference]: With dead ends: 63 [2020-08-19 04:31:03,704 INFO L226 Difference]: Without dead ends: 61 [2020-08-19 04:31:03,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:31:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-08-19 04:31:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-08-19 04:31:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-08-19 04:31:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-08-19 04:31:03,712 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-08-19 04:31:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:03,712 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-08-19 04:31:03,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-08-19 04:31:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-19 04:31:03,714 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:03,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:03,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-19 04:31:03,716 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:03,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:03,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-08-19 04:31:03,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:03,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785509382] [2020-08-19 04:31:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:03,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785509382] [2020-08-19 04:31:03,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:03,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 04:31:03,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834400854] [2020-08-19 04:31:03,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 04:31:03,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:03,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 04:31:03,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:31:03,783 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2020-08-19 04:31:03,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:03,928 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-08-19 04:31:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:31:03,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-08-19 04:31:03,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:03,929 INFO L225 Difference]: With dead ends: 71 [2020-08-19 04:31:03,929 INFO L226 Difference]: Without dead ends: 69 [2020-08-19 04:31:03,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:31:03,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-19 04:31:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-08-19 04:31:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-19 04:31:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-08-19 04:31:03,936 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-08-19 04:31:03,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:03,936 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-08-19 04:31:03,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 04:31:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-08-19 04:31:03,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-19 04:31:03,937 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:03,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:03,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-19 04:31:03,938 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:03,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-08-19 04:31:03,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:03,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394613699] [2020-08-19 04:31:03,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:03,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394613699] [2020-08-19 04:31:03,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:03,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:03,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557270093] [2020-08-19 04:31:03,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:03,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:03,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:03,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:03,989 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-08-19 04:31:04,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:04,243 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2020-08-19 04:31:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 04:31:04,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-08-19 04:31:04,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:04,244 INFO L225 Difference]: With dead ends: 91 [2020-08-19 04:31:04,244 INFO L226 Difference]: Without dead ends: 89 [2020-08-19 04:31:04,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:31:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-08-19 04:31:04,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2020-08-19 04:31:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-08-19 04:31:04,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-08-19 04:31:04,251 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-08-19 04:31:04,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:04,252 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-08-19 04:31:04,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:04,252 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-08-19 04:31:04,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-19 04:31:04,254 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:04,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:04,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-19 04:31:04,254 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:04,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:04,255 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-08-19 04:31:04,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:04,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674823045] [2020-08-19 04:31:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:04,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:04,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674823045] [2020-08-19 04:31:04,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:04,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:04,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733952572] [2020-08-19 04:31:04,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:04,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:04,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:04,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:04,314 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-08-19 04:31:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:04,486 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-08-19 04:31:04,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:04,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-08-19 04:31:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:04,488 INFO L225 Difference]: With dead ends: 61 [2020-08-19 04:31:04,488 INFO L226 Difference]: Without dead ends: 59 [2020-08-19 04:31:04,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-19 04:31:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-08-19 04:31:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-19 04:31:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-08-19 04:31:04,495 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-08-19 04:31:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:04,495 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-08-19 04:31:04,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-08-19 04:31:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-19 04:31:04,496 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:04,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:04,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-19 04:31:04,497 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:04,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-08-19 04:31:04,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:04,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419252926] [2020-08-19 04:31:04,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:04,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:04,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:04,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419252926] [2020-08-19 04:31:04,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:04,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:04,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865549370] [2020-08-19 04:31:04,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:04,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:04,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:04,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:04,575 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 6 states. [2020-08-19 04:31:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:04,714 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-19 04:31:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:04,715 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-08-19 04:31:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:04,715 INFO L225 Difference]: With dead ends: 70 [2020-08-19 04:31:04,715 INFO L226 Difference]: Without dead ends: 68 [2020-08-19 04:31:04,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:04,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-19 04:31:04,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-19 04:31:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-19 04:31:04,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-19 04:31:04,721 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 41 [2020-08-19 04:31:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:04,722 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-19 04:31:04,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-19 04:31:04,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-08-19 04:31:04,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:04,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:04,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-19 04:31:04,723 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:04,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:04,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-08-19 04:31:04,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:04,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19948068] [2020-08-19 04:31:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:04,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:04,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19948068] [2020-08-19 04:31:04,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:04,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:04,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335093616] [2020-08-19 04:31:04,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:04,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:04,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:04,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:04,769 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2020-08-19 04:31:04,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:04,936 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2020-08-19 04:31:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:04,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-08-19 04:31:04,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:04,937 INFO L225 Difference]: With dead ends: 68 [2020-08-19 04:31:04,938 INFO L226 Difference]: Without dead ends: 66 [2020-08-19 04:31:04,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:04,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-08-19 04:31:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-08-19 04:31:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-08-19 04:31:04,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-08-19 04:31:04,944 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 42 [2020-08-19 04:31:04,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:04,944 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-08-19 04:31:04,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:04,945 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-08-19 04:31:04,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-19 04:31:04,945 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:04,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:04,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-19 04:31:04,946 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:04,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:04,946 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-08-19 04:31:04,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:04,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53557970] [2020-08-19 04:31:04,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:05,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53557970] [2020-08-19 04:31:05,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:05,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:05,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489275702] [2020-08-19 04:31:05,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:05,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:05,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:05,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:05,014 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2020-08-19 04:31:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:05,324 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-08-19 04:31:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 04:31:05,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-08-19 04:31:05,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:05,326 INFO L225 Difference]: With dead ends: 90 [2020-08-19 04:31:05,326 INFO L226 Difference]: Without dead ends: 88 [2020-08-19 04:31:05,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:31:05,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-08-19 04:31:05,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2020-08-19 04:31:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-19 04:31:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-08-19 04:31:05,332 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 43 [2020-08-19 04:31:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:05,333 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-08-19 04:31:05,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-08-19 04:31:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-19 04:31:05,333 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:05,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:05,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-19 04:31:05,334 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:05,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:05,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-08-19 04:31:05,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:05,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182447424] [2020-08-19 04:31:05,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:05,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182447424] [2020-08-19 04:31:05,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:05,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:05,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880526255] [2020-08-19 04:31:05,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:05,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:05,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:05,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:05,388 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-08-19 04:31:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:05,563 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2020-08-19 04:31:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:05,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-19 04:31:05,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:05,564 INFO L225 Difference]: With dead ends: 75 [2020-08-19 04:31:05,564 INFO L226 Difference]: Without dead ends: 73 [2020-08-19 04:31:05,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:31:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-08-19 04:31:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2020-08-19 04:31:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-19 04:31:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-08-19 04:31:05,572 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 44 [2020-08-19 04:31:05,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:05,572 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-08-19 04:31:05,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-08-19 04:31:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-19 04:31:05,573 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:05,573 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:31:05,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-19 04:31:05,574 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:05,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:05,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-08-19 04:31:05,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:05,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203853860] [2020-08-19 04:31:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:31:05,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203853860] [2020-08-19 04:31:05,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:31:05,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-19 04:31:05,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503028562] [2020-08-19 04:31:05,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:05,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:05,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:05,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:05,642 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 6 states. [2020-08-19 04:31:05,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:05,751 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-08-19 04:31:05,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:31:05,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-19 04:31:05,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:05,753 INFO L225 Difference]: With dead ends: 67 [2020-08-19 04:31:05,754 INFO L226 Difference]: Without dead ends: 65 [2020-08-19 04:31:05,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:31:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-19 04:31:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-08-19 04:31:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-08-19 04:31:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-08-19 04:31:05,760 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 44 [2020-08-19 04:31:05,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:05,760 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-08-19 04:31:05,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:05,760 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-08-19 04:31:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-19 04:31:05,761 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:05,761 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 04:31:05,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-19 04:31:05,761 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:05,762 INFO L82 PathProgramCache]: Analyzing trace with hash 790604971, now seen corresponding path program 1 times [2020-08-19 04:31:05,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:05,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948166377] [2020-08-19 04:31:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:05,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-19 04:31:05,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948166377] [2020-08-19 04:31:05,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:05,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:31:05,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298174122] [2020-08-19 04:31:05,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:31:05,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:05,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:31:05,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:31:05,818 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2020-08-19 04:31:06,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:06,080 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-19 04:31:06,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 04:31:06,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-19 04:31:06,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:06,082 INFO L225 Difference]: With dead ends: 77 [2020-08-19 04:31:06,082 INFO L226 Difference]: Without dead ends: 75 [2020-08-19 04:31:06,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-08-19 04:31:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-19 04:31:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-08-19 04:31:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-19 04:31:06,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-08-19 04:31:06,088 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2020-08-19 04:31:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:06,088 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-08-19 04:31:06,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:31:06,088 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-08-19 04:31:06,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-19 04:31:06,089 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:31:06,089 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 04:31:06,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-19 04:31:06,089 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:31:06,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:31:06,090 INFO L82 PathProgramCache]: Analyzing trace with hash 705971477, now seen corresponding path program 1 times [2020-08-19 04:31:06,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:31:06,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805597573] [2020-08-19 04:31:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:31:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:06,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:31:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:31:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-19 04:31:06,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805597573] [2020-08-19 04:31:06,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:31:06,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:31:06,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108954251] [2020-08-19 04:31:06,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:31:06,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:31:06,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:31:06,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:31:06,142 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 5 states. [2020-08-19 04:31:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:31:06,279 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-08-19 04:31:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 04:31:06,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-08-19 04:31:06,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:31:06,280 INFO L225 Difference]: With dead ends: 60 [2020-08-19 04:31:06,280 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 04:31:06,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-19 04:31:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 04:31:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 04:31:06,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 04:31:06,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 04:31:06,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-08-19 04:31:06,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:31:06,283 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 04:31:06,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:31:06,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 04:31:06,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 04:31:06,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-19 04:31:06,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 04:31:06,730 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 35 [2020-08-19 04:31:07,022 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2020-08-19 04:31:07,310 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-08-19 04:31:07,661 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-08-19 04:31:07,664 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 04:31:07,665 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_375~0 |old(~__return_375~0)|)) [2020-08-19 04:31:07,665 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 04:31:07,665 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 04:31:07,665 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-19 04:31:07,665 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 04:31:07,665 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 04:31:07,665 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-19 04:31:07,665 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-19 04:31:07,665 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-19 04:31:07,666 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-19 04:31:07,666 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-08-19 04:31:07,666 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-08-19 04:31:07,666 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-08-19 04:31:07,666 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-08-19 04:31:07,666 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-08-19 04:31:07,666 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-08-19 04:31:07,667 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-08-19 04:31:07,668 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (< main_~main__cp~0 main_~main__urilen~0) (= main_~__VERIFIER_assert__cond~3 1) (let ((.cse0 (< 0 main_~main__scheme~0)) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (<= 1 main_~main__cp~0)) (.cse3 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~2 0)) (not (= main_~__VERIFIER_assert__cond~16 0)) .cse2 .cse3) (and .cse0 .cse1 (= main_~__VERIFIER_assert__cond~2 1) .cse2 .cse3))) (= |old(~__return_375~0)| ~__return_375~0)) [2020-08-19 04:31:07,668 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-08-19 04:31:07,668 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-08-19 04:31:07,668 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-08-19 04:31:07,671 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (= main_~__VERIFIER_assert__cond~10 1)) (.cse2 (< 0 main_~main__scheme~0)) (.cse3 (not (= main_~main__urilen~0 .cse17))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse6 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse7 (= main_~__VERIFIER_assert__cond~3 1)) (.cse8 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse9 (= |old(~__return_375~0)| ~__return_375~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse11 (<= .cse17 main_~main__urilen~0)) (.cse12 (= main_~__VERIFIER_assert__cond~9 1)) (.cse13 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse14 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 1 main_~main__c~0) .cse10 .cse11 .cse12 .cse13 .cse14 (not (= main_~__VERIFIER_assert__cond~15 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~14 0)) .cse15 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse16) (and .cse0 .cse1 .cse2 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse3 .cse4 .cse5 .cse6 (= main_~main__c~0 0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))) [2020-08-19 04:31:07,671 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-08-19 04:31:07,671 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-08-19 04:31:07,671 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-08-19 04:31:07,671 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-08-19 04:31:07,671 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-08-19 04:31:07,671 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-08-19 04:31:07,672 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2020-08-19 04:31:07,672 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-08-19 04:31:07,672 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-08-19 04:31:07,673 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-08-19 04:31:07,673 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-08-19 04:31:07,673 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-08-19 04:31:07,673 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-08-19 04:31:07,673 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-08-19 04:31:07,673 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-08-19 04:31:07,674 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-08-19 04:31:07,675 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-08-19 04:31:07,675 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-08-19 04:31:07,675 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-19 04:31:07,675 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-08-19 04:31:07,675 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-08-19 04:31:07,675 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-08-19 04:31:07,675 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-08-19 04:31:07,675 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-08-19 04:31:07,676 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-08-19 04:31:07,677 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-08-19 04:31:07,677 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-08-19 04:31:07,677 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse4 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse9 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse11 (not (= main_~__VERIFIER_assert__cond~10 0))) (.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (< 0 main_~main__scheme~0)) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse5 (= main_~main__c~0 0)) (.cse6 (= main_~__VERIFIER_assert__cond~3 1)) (.cse7 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse8 (= |old(~__return_375~0)| ~__return_375~0)) (.cse10 (<= .cse17 main_~main__urilen~0)) (.cse12 (= main_~__VERIFIER_assert__cond~9 1)) (.cse13 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse14 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8 (<= 1 main_~main__c~0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (not (= main_~__VERIFIER_assert__cond~15 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~14 0)) .cse15 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse16) (and (< .cse17 main_~main__urilen~0) .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse10 .cse12 .cse13 .cse14 .cse15 (= main_~__VERIFIER_assert__cond~8 1) .cse16)))) [2020-08-19 04:31:07,677 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-08-19 04:31:07,677 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-08-19 04:31:07,677 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-08-19 04:31:07,678 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-08-19 04:31:07,679 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-08-19 04:31:07,679 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-08-19 04:31:07,679 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-08-19 04:31:07,679 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-08-19 04:31:07,679 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-08-19 04:31:07,680 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-08-19 04:31:07,680 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-08-19 04:31:07,680 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-08-19 04:31:07,680 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-08-19 04:31:07,680 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-19 04:31:07,681 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-08-19 04:31:07,681 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (let ((.cse0 (< 0 main_~main__scheme~0)) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (= main_~__VERIFIER_assert__cond~3 1)) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~2 0)) .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) (not (= main_~__VERIFIER_assert__cond~17 0)) .cse3 .cse4))) (= |old(~__return_375~0)| ~__return_375~0) (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) [2020-08-19 04:31:07,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:31:07 BoogieIcfgContainer [2020-08-19 04:31:07,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:31:07,745 INFO L168 Benchmark]: Toolchain (without parser) took 9764.03 ms. Allocated memory was 139.5 MB in the beginning and 334.0 MB in the end (delta: 194.5 MB). Free memory was 102.2 MB in the beginning and 269.1 MB in the end (delta: -167.0 MB). Peak memory consumption was 180.8 MB. Max. memory is 7.1 GB. [2020-08-19 04:31:07,745 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-08-19 04:31:07,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.68 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 180.9 MB in the end (delta: -78.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-08-19 04:31:07,747 INFO L168 Benchmark]: Boogie Preprocessor took 38.45 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 179.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-08-19 04:31:07,747 INFO L168 Benchmark]: RCFGBuilder took 530.53 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 150.7 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-08-19 04:31:07,751 INFO L168 Benchmark]: TraceAbstraction took 8720.74 ms. Allocated memory was 202.9 MB in the beginning and 334.0 MB in the end (delta: 131.1 MB). Free memory was 149.7 MB in the beginning and 269.1 MB in the end (delta: -119.4 MB). Peak memory consumption was 164.9 MB. Max. memory is 7.1 GB. [2020-08-19 04:31:07,758 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 469.68 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 180.9 MB in the end (delta: -78.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.45 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 179.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 530.53 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 150.7 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8720.74 ms. Allocated memory was 202.9 MB in the beginning and 334.0 MB in the end (delta: 131.1 MB). Free memory was 149.7 MB in the beginning and 269.1 MB in the end (delta: -119.4 MB). Peak memory consumption was 164.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) && \old(__return_375) == __return_375) && main__cp + 1 <= main__urilen - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && \old(__return_375) == __return_375 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((((((((((((((((!(__VERIFIER_assert__cond == 0) && 0 < main__scheme) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((((((!(__VERIFIER_assert__cond == 0) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__c) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0))) || (((((((((((((((main__cp + 1 < main__urilen && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((main__cp < main__urilen && __VERIFIER_assert__cond == 1) && ((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)))) && \old(__return_375) == __return_375 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && 0 < main__scheme) && !(main__urilen == main__cp + 1)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__c) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((((!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && 0 < main__scheme) && main__c + 2 <= main__tokenlen) && !(main__urilen == main__cp + 1)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.1s, OverallIterations: 24, TraceHistogramMax: 2, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1392 SDtfs, 3840 SDslu, 353 SDs, 0 SdLazy, 2587 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 24 MinimizatonAttempts, 288 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 503 HoareAnnotationTreeSize, 9 FomulaSimplifications, 76237 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2678 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 801 NumberOfCodeBlocks, 801 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 58141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 21 PerfectInterpolantSequences, 13/19 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...