/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/eca-rers2012/Problem03_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:33:01,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:33:01,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:33:01,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-21 23:33:01,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:33:01,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:33:01,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:33:01,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:33:01,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:33:01,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:33:01,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:33:01,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:33:01,832 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:33:01,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:33:01,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:33:01,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:33:01,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:33:01,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:33:01,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:33:01,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:33:01,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:33:01,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:33:01,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:33:01,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:33:01,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:33:01,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:33:01,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:33:01,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:33:01,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:33:01,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:33:01,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:33:01,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:33:01,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:33:01,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:33:02,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:33:02,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:33:02,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:33:02,302 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:33:02,303 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:33:02,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label24.c [2020-12-21 23:33:02,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68668bee/1726904e3d4e4f01a633f66a714a0d26/FLAGceba36382 [2020-12-21 23:33:03,124 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:33:03,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label24.c [2020-12-21 23:33:03,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68668bee/1726904e3d4e4f01a633f66a714a0d26/FLAGceba36382 [2020-12-21 23:33:03,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68668bee/1726904e3d4e4f01a633f66a714a0d26 [2020-12-21 23:33:03,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:33:03,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:33:03,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:33:03,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:33:03,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:33:03,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:33:03" (1/1) ... [2020-12-21 23:33:03,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a252990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:03, skipping insertion in model container [2020-12-21 23:33:03,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:33:03" (1/1) ... [2020-12-21 23:33:03,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:33:03,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:33:04,121 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label24.c[60015,60028] [2020-12-21 23:33:04,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:33:04,179 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:33:04,444 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label24.c[60015,60028] [2020-12-21 23:33:04,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:33:04,478 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:33:04,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04 WrapperNode [2020-12-21 23:33:04,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:33:04,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:33:04,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:33:04,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:33:04,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:33:04,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:33:04,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:33:04,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:33:04,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... [2020-12-21 23:33:04,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:33:04,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:33:04,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:33:04,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:33:04,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:33:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:33:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:33:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:33:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:33:07,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:33:07,578 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-21 23:33:07,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:33:07 BoogieIcfgContainer [2020-12-21 23:33:07,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:33:07,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:33:07,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:33:07,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:33:07,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:33:03" (1/3) ... [2020-12-21 23:33:07,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e73f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:33:07, skipping insertion in model container [2020-12-21 23:33:07,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:33:04" (2/3) ... [2020-12-21 23:33:07,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e73f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:33:07, skipping insertion in model container [2020-12-21 23:33:07,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:33:07" (3/3) ... [2020-12-21 23:33:07,590 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label24.c [2020-12-21 23:33:07,596 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:33:07,601 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:33:07,620 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:33:07,650 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:33:07,651 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:33:07,651 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:33:07,651 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:33:07,651 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:33:07,651 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:33:07,651 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:33:07,652 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:33:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-12-21 23:33:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-12-21 23:33:07,694 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:07,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:07,695 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:07,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:07,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1612939027, now seen corresponding path program 1 times [2020-12-21 23:33:07,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:07,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825601967] [2020-12-21 23:33:07,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:33:08,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825601967] [2020-12-21 23:33:08,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:08,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:33:08,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059788475] [2020-12-21 23:33:08,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:08,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:08,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:08,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:08,525 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-12-21 23:33:09,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:09,970 INFO L93 Difference]: Finished difference Result 860 states and 1507 transitions. [2020-12-21 23:33:09,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:09,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-12-21 23:33:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:09,993 INFO L225 Difference]: With dead ends: 860 [2020-12-21 23:33:09,993 INFO L226 Difference]: Without dead ends: 465 [2020-12-21 23:33:09,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:10,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-12-21 23:33:10,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 459. [2020-12-21 23:33:10,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-12-21 23:33:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 713 transitions. [2020-12-21 23:33:10,076 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 713 transitions. Word has length 191 [2020-12-21 23:33:10,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:10,077 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 713 transitions. [2020-12-21 23:33:10,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:10,078 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 713 transitions. [2020-12-21 23:33:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-21 23:33:10,083 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:10,083 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:10,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:33:10,084 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:10,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1561555348, now seen corresponding path program 1 times [2020-12-21 23:33:10,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:10,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288617520] [2020-12-21 23:33:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:33:10,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288617520] [2020-12-21 23:33:10,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:10,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:33:10,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229696798] [2020-12-21 23:33:10,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:10,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:10,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:10,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:10,224 INFO L87 Difference]: Start difference. First operand 459 states and 713 transitions. Second operand 3 states. [2020-12-21 23:33:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:11,212 INFO L93 Difference]: Finished difference Result 1343 states and 2102 transitions. [2020-12-21 23:33:11,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:11,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-12-21 23:33:11,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:11,219 INFO L225 Difference]: With dead ends: 1343 [2020-12-21 23:33:11,219 INFO L226 Difference]: Without dead ends: 886 [2020-12-21 23:33:11,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:11,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-12-21 23:33:11,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 868. [2020-12-21 23:33:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2020-12-21 23:33:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1330 transitions. [2020-12-21 23:33:11,271 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1330 transitions. Word has length 199 [2020-12-21 23:33:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:11,275 INFO L481 AbstractCegarLoop]: Abstraction has 868 states and 1330 transitions. [2020-12-21 23:33:11,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1330 transitions. [2020-12-21 23:33:11,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-12-21 23:33:11,284 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:11,287 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:11,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 23:33:11,288 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:11,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:11,289 INFO L82 PathProgramCache]: Analyzing trace with hash -2043177523, now seen corresponding path program 1 times [2020-12-21 23:33:11,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:11,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724725484] [2020-12-21 23:33:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:33:11,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724725484] [2020-12-21 23:33:11,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:11,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:33:11,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550866200] [2020-12-21 23:33:11,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:11,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:11,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:11,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:11,521 INFO L87 Difference]: Start difference. First operand 868 states and 1330 transitions. Second operand 3 states. [2020-12-21 23:33:12,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:12,609 INFO L93 Difference]: Finished difference Result 2570 states and 3942 transitions. [2020-12-21 23:33:12,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:12,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-12-21 23:33:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:12,620 INFO L225 Difference]: With dead ends: 2570 [2020-12-21 23:33:12,620 INFO L226 Difference]: Without dead ends: 1704 [2020-12-21 23:33:12,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:12,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2020-12-21 23:33:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1700. [2020-12-21 23:33:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2020-12-21 23:33:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2463 transitions. [2020-12-21 23:33:12,676 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2463 transitions. Word has length 200 [2020-12-21 23:33:12,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:12,676 INFO L481 AbstractCegarLoop]: Abstraction has 1700 states and 2463 transitions. [2020-12-21 23:33:12,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2463 transitions. [2020-12-21 23:33:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-12-21 23:33:12,683 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:12,683 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:12,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 23:33:12,684 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:12,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:12,684 INFO L82 PathProgramCache]: Analyzing trace with hash -141804039, now seen corresponding path program 1 times [2020-12-21 23:33:12,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:12,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730860748] [2020-12-21 23:33:12,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:33:12,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730860748] [2020-12-21 23:33:12,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:12,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:33:12,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570839726] [2020-12-21 23:33:12,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:12,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:12,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:12,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:12,829 INFO L87 Difference]: Start difference. First operand 1700 states and 2463 transitions. Second operand 3 states. [2020-12-21 23:33:13,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:13,748 INFO L93 Difference]: Finished difference Result 4226 states and 6103 transitions. [2020-12-21 23:33:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:13,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-12-21 23:33:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:13,762 INFO L225 Difference]: With dead ends: 4226 [2020-12-21 23:33:13,762 INFO L226 Difference]: Without dead ends: 2528 [2020-12-21 23:33:13,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:13,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2020-12-21 23:33:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2527. [2020-12-21 23:33:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2527 states. [2020-12-21 23:33:13,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3586 transitions. [2020-12-21 23:33:13,831 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 3586 transitions. Word has length 201 [2020-12-21 23:33:13,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:13,832 INFO L481 AbstractCegarLoop]: Abstraction has 2527 states and 3586 transitions. [2020-12-21 23:33:13,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 3586 transitions. [2020-12-21 23:33:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-12-21 23:33:13,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:13,841 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:13,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-21 23:33:13,867 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:13,869 INFO L82 PathProgramCache]: Analyzing trace with hash -252433271, now seen corresponding path program 1 times [2020-12-21 23:33:13,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:13,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112805572] [2020-12-21 23:33:13,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-21 23:33:14,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112805572] [2020-12-21 23:33:14,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:14,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:33:14,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350703443] [2020-12-21 23:33:14,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:33:14,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:14,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:33:14,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:33:14,625 INFO L87 Difference]: Start difference. First operand 2527 states and 3586 transitions. Second operand 4 states. [2020-12-21 23:33:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:15,730 INFO L93 Difference]: Finished difference Result 5366 states and 7695 transitions. [2020-12-21 23:33:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:33:15,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2020-12-21 23:33:15,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:15,745 INFO L225 Difference]: With dead ends: 5366 [2020-12-21 23:33:15,745 INFO L226 Difference]: Without dead ends: 2493 [2020-12-21 23:33:15,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:33:15,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-12-21 23:33:15,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2493. [2020-12-21 23:33:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-12-21 23:33:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3265 transitions. [2020-12-21 23:33:15,855 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3265 transitions. Word has length 206 [2020-12-21 23:33:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:15,855 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 3265 transitions. [2020-12-21 23:33:15,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:33:15,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3265 transitions. [2020-12-21 23:33:15,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-12-21 23:33:15,864 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:15,864 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:15,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-21 23:33:15,866 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:15,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:15,866 INFO L82 PathProgramCache]: Analyzing trace with hash 371855278, now seen corresponding path program 1 times [2020-12-21 23:33:15,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:15,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699824287] [2020-12-21 23:33:15,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:33:16,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699824287] [2020-12-21 23:33:16,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:16,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:33:16,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24572398] [2020-12-21 23:33:16,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:33:16,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:16,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:33:16,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:33:16,036 INFO L87 Difference]: Start difference. First operand 2493 states and 3265 transitions. Second operand 4 states. [2020-12-21 23:33:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:17,230 INFO L93 Difference]: Finished difference Result 9044 states and 11842 transitions. [2020-12-21 23:33:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:33:17,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2020-12-21 23:33:17,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:17,260 INFO L225 Difference]: With dead ends: 9044 [2020-12-21 23:33:17,260 INFO L226 Difference]: Without dead ends: 6553 [2020-12-21 23:33:17,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:33:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6553 states. [2020-12-21 23:33:17,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6553 to 6553. [2020-12-21 23:33:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6553 states. [2020-12-21 23:33:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 7646 transitions. [2020-12-21 23:33:17,408 INFO L78 Accepts]: Start accepts. Automaton has 6553 states and 7646 transitions. Word has length 208 [2020-12-21 23:33:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:17,409 INFO L481 AbstractCegarLoop]: Abstraction has 6553 states and 7646 transitions. [2020-12-21 23:33:17,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:33:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6553 states and 7646 transitions. [2020-12-21 23:33:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-12-21 23:33:17,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:17,423 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:17,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-21 23:33:17,423 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:17,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:17,424 INFO L82 PathProgramCache]: Analyzing trace with hash -990679452, now seen corresponding path program 1 times [2020-12-21 23:33:17,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:17,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450944388] [2020-12-21 23:33:17,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:33:18,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450944388] [2020-12-21 23:33:18,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:18,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:33:18,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649600675] [2020-12-21 23:33:18,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:33:18,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:18,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:33:18,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:33:18,104 INFO L87 Difference]: Start difference. First operand 6553 states and 7646 transitions. Second operand 4 states. [2020-12-21 23:33:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:19,411 INFO L93 Difference]: Finished difference Result 14714 states and 17256 transitions. [2020-12-21 23:33:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:33:19,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 222 [2020-12-21 23:33:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:19,449 INFO L225 Difference]: With dead ends: 14714 [2020-12-21 23:33:19,449 INFO L226 Difference]: Without dead ends: 7989 [2020-12-21 23:33:19,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:33:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2020-12-21 23:33:19,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7988. [2020-12-21 23:33:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7988 states. [2020-12-21 23:33:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7988 states to 7988 states and 9345 transitions. [2020-12-21 23:33:19,628 INFO L78 Accepts]: Start accepts. Automaton has 7988 states and 9345 transitions. Word has length 222 [2020-12-21 23:33:19,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:19,629 INFO L481 AbstractCegarLoop]: Abstraction has 7988 states and 9345 transitions. [2020-12-21 23:33:19,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:33:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 7988 states and 9345 transitions. [2020-12-21 23:33:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-12-21 23:33:19,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:19,646 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:19,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-21 23:33:19,646 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:19,647 INFO L82 PathProgramCache]: Analyzing trace with hash 610217935, now seen corresponding path program 1 times [2020-12-21 23:33:19,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:19,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608750160] [2020-12-21 23:33:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:33:19,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608750160] [2020-12-21 23:33:19,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018780488] [2020-12-21 23:33:19,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:19,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:33:19,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:33:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-21 23:33:20,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:33:20,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:33:20,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451143987] [2020-12-21 23:33:20,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:20,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:20,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:20,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:20,415 INFO L87 Difference]: Start difference. First operand 7988 states and 9345 transitions. Second operand 3 states. [2020-12-21 23:33:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:21,256 INFO L93 Difference]: Finished difference Result 15982 states and 18703 transitions. [2020-12-21 23:33:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:21,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-12-21 23:33:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:21,290 INFO L225 Difference]: With dead ends: 15982 [2020-12-21 23:33:21,291 INFO L226 Difference]: Without dead ends: 7996 [2020-12-21 23:33:21,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:21,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7996 states. [2020-12-21 23:33:21,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7996 to 7988. [2020-12-21 23:33:21,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7988 states. [2020-12-21 23:33:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7988 states to 7988 states and 9247 transitions. [2020-12-21 23:33:21,456 INFO L78 Accepts]: Start accepts. Automaton has 7988 states and 9247 transitions. Word has length 229 [2020-12-21 23:33:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:21,456 INFO L481 AbstractCegarLoop]: Abstraction has 7988 states and 9247 transitions. [2020-12-21 23:33:21,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:21,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7988 states and 9247 transitions. [2020-12-21 23:33:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-12-21 23:33:21,473 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:21,474 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:21,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-12-21 23:33:21,690 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:21,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:21,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1205995720, now seen corresponding path program 1 times [2020-12-21 23:33:21,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:21,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810810190] [2020-12-21 23:33:21,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-21 23:33:21,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810810190] [2020-12-21 23:33:21,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:21,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:33:21,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640933455] [2020-12-21 23:33:21,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:21,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:21,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:21,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:21,932 INFO L87 Difference]: Start difference. First operand 7988 states and 9247 transitions. Second operand 3 states. [2020-12-21 23:33:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:22,772 INFO L93 Difference]: Finished difference Result 21504 states and 24961 transitions. [2020-12-21 23:33:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:22,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-12-21 23:33:22,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:22,800 INFO L225 Difference]: With dead ends: 21504 [2020-12-21 23:33:22,800 INFO L226 Difference]: Without dead ends: 13518 [2020-12-21 23:33:22,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:22,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13518 states. [2020-12-21 23:33:22,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13518 to 13515. [2020-12-21 23:33:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13515 states. [2020-12-21 23:33:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13515 states to 13515 states and 15677 transitions. [2020-12-21 23:33:23,008 INFO L78 Accepts]: Start accepts. Automaton has 13515 states and 15677 transitions. Word has length 231 [2020-12-21 23:33:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:23,008 INFO L481 AbstractCegarLoop]: Abstraction has 13515 states and 15677 transitions. [2020-12-21 23:33:23,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 13515 states and 15677 transitions. [2020-12-21 23:33:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-21 23:33:23,030 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:23,031 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:23,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-21 23:33:23,031 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:23,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1409768213, now seen corresponding path program 1 times [2020-12-21 23:33:23,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:23,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514815682] [2020-12-21 23:33:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-21 23:33:23,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514815682] [2020-12-21 23:33:23,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442463251] [2020-12-21 23:33:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:23,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:33:23,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:33:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-21 23:33:23,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:33:23,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:33:23,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519081347] [2020-12-21 23:33:23,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:23,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:23,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:23,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:23,555 INFO L87 Difference]: Start difference. First operand 13515 states and 15677 transitions. Second operand 3 states. [2020-12-21 23:33:24,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:24,416 INFO L93 Difference]: Finished difference Result 32716 states and 38647 transitions. [2020-12-21 23:33:24,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:24,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-12-21 23:33:24,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:24,453 INFO L225 Difference]: With dead ends: 32716 [2020-12-21 23:33:24,453 INFO L226 Difference]: Without dead ends: 19203 [2020-12-21 23:33:24,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19203 states. [2020-12-21 23:33:24,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19203 to 19199. [2020-12-21 23:33:24,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19199 states. [2020-12-21 23:33:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19199 states to 19199 states and 21722 transitions. [2020-12-21 23:33:24,821 INFO L78 Accepts]: Start accepts. Automaton has 19199 states and 21722 transitions. Word has length 235 [2020-12-21 23:33:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:24,822 INFO L481 AbstractCegarLoop]: Abstraction has 19199 states and 21722 transitions. [2020-12-21 23:33:24,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 19199 states and 21722 transitions. [2020-12-21 23:33:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-12-21 23:33:24,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:24,843 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:25,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-21 23:33:25,058 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:25,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1184715384, now seen corresponding path program 1 times [2020-12-21 23:33:25,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:25,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57612881] [2020-12-21 23:33:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 50 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-21 23:33:25,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57612881] [2020-12-21 23:33:25,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643953258] [2020-12-21 23:33:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:25,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-21 23:33:25,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:33:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-21 23:33:25,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:33:25,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:33:25,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687079934] [2020-12-21 23:33:25,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:25,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:25,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:25,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:25,721 INFO L87 Difference]: Start difference. First operand 19199 states and 21722 transitions. Second operand 3 states. [2020-12-21 23:33:26,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:26,707 INFO L93 Difference]: Finished difference Result 48380 states and 55270 transitions. [2020-12-21 23:33:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:26,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-12-21 23:33:26,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:26,759 INFO L225 Difference]: With dead ends: 48380 [2020-12-21 23:33:26,759 INFO L226 Difference]: Without dead ends: 29183 [2020-12-21 23:33:26,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:26,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29183 states. [2020-12-21 23:33:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29183 to 28945. [2020-12-21 23:33:27,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28945 states. [2020-12-21 23:33:27,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28945 states to 28945 states and 32915 transitions. [2020-12-21 23:33:27,280 INFO L78 Accepts]: Start accepts. Automaton has 28945 states and 32915 transitions. Word has length 236 [2020-12-21 23:33:27,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:27,281 INFO L481 AbstractCegarLoop]: Abstraction has 28945 states and 32915 transitions. [2020-12-21 23:33:27,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:27,281 INFO L276 IsEmpty]: Start isEmpty. Operand 28945 states and 32915 transitions. [2020-12-21 23:33:27,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-12-21 23:33:27,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:27,309 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:27,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-21 23:33:27,524 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:27,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1265310920, now seen corresponding path program 1 times [2020-12-21 23:33:27,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:27,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215446881] [2020-12-21 23:33:27,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-12-21 23:33:27,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215446881] [2020-12-21 23:33:27,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2919739] [2020-12-21 23:33:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:27,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-21 23:33:27,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:33:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-21 23:33:28,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:33:28,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:33:28,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671027148] [2020-12-21 23:33:28,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:28,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:28,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:28,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:28,168 INFO L87 Difference]: Start difference. First operand 28945 states and 32915 transitions. Second operand 3 states. [2020-12-21 23:33:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:29,152 INFO L93 Difference]: Finished difference Result 79004 states and 89991 transitions. [2020-12-21 23:33:29,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:29,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2020-12-21 23:33:29,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:29,240 INFO L225 Difference]: With dead ends: 79004 [2020-12-21 23:33:29,241 INFO L226 Difference]: Without dead ends: 50061 [2020-12-21 23:33:29,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:29,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50061 states. [2020-12-21 23:33:30,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50061 to 50058. [2020-12-21 23:33:30,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50058 states. [2020-12-21 23:33:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50058 states to 50058 states and 55587 transitions. [2020-12-21 23:33:30,360 INFO L78 Accepts]: Start accepts. Automaton has 50058 states and 55587 transitions. Word has length 263 [2020-12-21 23:33:30,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:30,361 INFO L481 AbstractCegarLoop]: Abstraction has 50058 states and 55587 transitions. [2020-12-21 23:33:30,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 50058 states and 55587 transitions. [2020-12-21 23:33:30,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-12-21 23:33:30,397 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:30,397 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:30,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:30,613 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:30,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:30,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1897640625, now seen corresponding path program 1 times [2020-12-21 23:33:30,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:30,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520929329] [2020-12-21 23:33:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:30,927 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-12-21 23:33:30,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520929329] [2020-12-21 23:33:30,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23984113] [2020-12-21 23:33:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:31,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-21 23:33:31,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:33:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-12-21 23:33:31,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:33:31,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-21 23:33:31,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836601438] [2020-12-21 23:33:31,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:33:31,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:31,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:33:31,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:31,352 INFO L87 Difference]: Start difference. First operand 50058 states and 55587 transitions. Second operand 4 states. [2020-12-21 23:33:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:32,910 INFO L93 Difference]: Finished difference Result 138118 states and 153401 transitions. [2020-12-21 23:33:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:33:32,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 270 [2020-12-21 23:33:32,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:33,201 INFO L225 Difference]: With dead ends: 138118 [2020-12-21 23:33:33,206 INFO L226 Difference]: Without dead ends: 88062 [2020-12-21 23:33:33,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88062 states. [2020-12-21 23:33:34,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88062 to 87652. [2020-12-21 23:33:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87652 states. [2020-12-21 23:33:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87652 states to 87652 states and 96526 transitions. [2020-12-21 23:33:34,979 INFO L78 Accepts]: Start accepts. Automaton has 87652 states and 96526 transitions. Word has length 270 [2020-12-21 23:33:34,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:34,979 INFO L481 AbstractCegarLoop]: Abstraction has 87652 states and 96526 transitions. [2020-12-21 23:33:34,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:33:34,979 INFO L276 IsEmpty]: Start isEmpty. Operand 87652 states and 96526 transitions. [2020-12-21 23:33:35,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-12-21 23:33:35,001 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:35,001 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:35,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-21 23:33:35,215 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:35,217 INFO L82 PathProgramCache]: Analyzing trace with hash -502239842, now seen corresponding path program 1 times [2020-12-21 23:33:35,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:35,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242411294] [2020-12-21 23:33:35,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-12-21 23:33:35,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242411294] [2020-12-21 23:33:35,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126414356] [2020-12-21 23:33:35,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:35,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-21 23:33:35,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:33:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-21 23:33:36,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 23:33:36,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-12-21 23:33:36,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831271602] [2020-12-21 23:33:36,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 23:33:36,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:36,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 23:33:36,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-21 23:33:36,190 INFO L87 Difference]: Start difference. First operand 87652 states and 96526 transitions. Second operand 6 states. [2020-12-21 23:33:42,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:42,802 INFO L93 Difference]: Finished difference Result 324094 states and 357428 transitions. [2020-12-21 23:33:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-21 23:33:42,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 273 [2020-12-21 23:33:42,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:43,485 INFO L225 Difference]: With dead ends: 324094 [2020-12-21 23:33:43,486 INFO L226 Difference]: Without dead ends: 236442 [2020-12-21 23:33:43,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-12-21 23:33:43,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236442 states. [2020-12-21 23:33:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236442 to 206552. [2020-12-21 23:33:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206552 states. [2020-12-21 23:33:49,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206552 states to 206552 states and 226462 transitions. [2020-12-21 23:33:49,065 INFO L78 Accepts]: Start accepts. Automaton has 206552 states and 226462 transitions. Word has length 273 [2020-12-21 23:33:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:49,066 INFO L481 AbstractCegarLoop]: Abstraction has 206552 states and 226462 transitions. [2020-12-21 23:33:49,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 23:33:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 206552 states and 226462 transitions. [2020-12-21 23:33:49,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-12-21 23:33:49,177 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:49,178 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:49,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:49,394 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:49,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:49,395 INFO L82 PathProgramCache]: Analyzing trace with hash -460659701, now seen corresponding path program 1 times [2020-12-21 23:33:49,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:49,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925670766] [2020-12-21 23:33:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-21 23:33:49,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925670766] [2020-12-21 23:33:49,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:33:49,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:33:49,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180394364] [2020-12-21 23:33:49,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:49,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:49,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:49,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:49,627 INFO L87 Difference]: Start difference. First operand 206552 states and 226462 transitions. Second operand 3 states. [2020-12-21 23:33:52,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:52,169 INFO L93 Difference]: Finished difference Result 396849 states and 434443 transitions. [2020-12-21 23:33:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:52,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 320 [2020-12-21 23:33:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:33:52,530 INFO L225 Difference]: With dead ends: 396849 [2020-12-21 23:33:52,531 INFO L226 Difference]: Without dead ends: 190502 [2020-12-21 23:33:52,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:33:52,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190502 states. [2020-12-21 23:33:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190502 to 156362. [2020-12-21 23:33:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156362 states. [2020-12-21 23:33:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156362 states to 156362 states and 168918 transitions. [2020-12-21 23:33:55,618 INFO L78 Accepts]: Start accepts. Automaton has 156362 states and 168918 transitions. Word has length 320 [2020-12-21 23:33:55,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:33:55,618 INFO L481 AbstractCegarLoop]: Abstraction has 156362 states and 168918 transitions. [2020-12-21 23:33:55,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:33:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 156362 states and 168918 transitions. [2020-12-21 23:33:56,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-12-21 23:33:56,245 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:33:56,246 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:33:56,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-21 23:33:56,246 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:33:56,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:33:56,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1753786680, now seen corresponding path program 1 times [2020-12-21 23:33:56,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:33:56,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062986521] [2020-12-21 23:33:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:33:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 254 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-21 23:33:56,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062986521] [2020-12-21 23:33:56,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592189060] [2020-12-21 23:33:56,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:33:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:33:57,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:33:57,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:33:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-12-21 23:33:57,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:33:57,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-12-21 23:33:57,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357681985] [2020-12-21 23:33:57,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:33:57,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:33:57,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:33:57,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:33:57,679 INFO L87 Difference]: Start difference. First operand 156362 states and 168918 transitions. Second operand 3 states. [2020-12-21 23:33:59,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:33:59,643 INFO L93 Difference]: Finished difference Result 459330 states and 496155 transitions. [2020-12-21 23:33:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:33:59,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 447 [2020-12-21 23:33:59,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:34:00,223 INFO L225 Difference]: With dead ends: 459330 [2020-12-21 23:34:00,224 INFO L226 Difference]: Without dead ends: 303173 [2020-12-21 23:34:00,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:34:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303173 states. [2020-12-21 23:34:04,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303173 to 303165. [2020-12-21 23:34:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303165 states. [2020-12-21 23:34:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303165 states to 303165 states and 327387 transitions. [2020-12-21 23:34:05,882 INFO L78 Accepts]: Start accepts. Automaton has 303165 states and 327387 transitions. Word has length 447 [2020-12-21 23:34:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:34:05,895 INFO L481 AbstractCegarLoop]: Abstraction has 303165 states and 327387 transitions. [2020-12-21 23:34:05,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:34:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 303165 states and 327387 transitions. [2020-12-21 23:34:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-12-21 23:34:06,000 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:34:06,001 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:34:06,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-21 23:34:06,214 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:34:06,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:34:06,215 INFO L82 PathProgramCache]: Analyzing trace with hash 94488694, now seen corresponding path program 1 times [2020-12-21 23:34:06,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:34:06,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788885614] [2020-12-21 23:34:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:34:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:34:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 251 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:34:08,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788885614] [2020-12-21 23:34:08,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728519709] [2020-12-21 23:34:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:34:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:34:08,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:34:08,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:34:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-12-21 23:34:08,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:34:08,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-21 23:34:08,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567269524] [2020-12-21 23:34:08,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:34:08,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:34:08,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:34:08,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:34:08,808 INFO L87 Difference]: Start difference. First operand 303165 states and 327387 transitions. Second operand 3 states. [2020-12-21 23:34:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:34:11,514 INFO L93 Difference]: Finished difference Result 605753 states and 654174 transitions. [2020-12-21 23:34:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:34:11,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 447 [2020-12-21 23:34:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:34:12,008 INFO L225 Difference]: With dead ends: 605753 [2020-12-21 23:34:12,008 INFO L226 Difference]: Without dead ends: 302793 [2020-12-21 23:34:12,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:34:12,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302793 states. [2020-12-21 23:34:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302793 to 294639. [2020-12-21 23:34:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294639 states. [2020-12-21 23:34:17,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294639 states to 294639 states and 316949 transitions. [2020-12-21 23:34:17,794 INFO L78 Accepts]: Start accepts. Automaton has 294639 states and 316949 transitions. Word has length 447 [2020-12-21 23:34:17,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:34:17,795 INFO L481 AbstractCegarLoop]: Abstraction has 294639 states and 316949 transitions. [2020-12-21 23:34:17,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:34:17,795 INFO L276 IsEmpty]: Start isEmpty. Operand 294639 states and 316949 transitions. [2020-12-21 23:34:17,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-12-21 23:34:17,880 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:34:17,881 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:34:18,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-21 23:34:18,083 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:34:18,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:34:18,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1977757819, now seen corresponding path program 1 times [2020-12-21 23:34:18,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:34:18,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083561344] [2020-12-21 23:34:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:34:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:34:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 278 proven. 11 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2020-12-21 23:34:18,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083561344] [2020-12-21 23:34:18,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931839925] [2020-12-21 23:34:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:34:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:34:19,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-21 23:34:19,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:34:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-21 23:34:19,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:34:19,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:34:19,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548844346] [2020-12-21 23:34:19,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:34:19,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:34:19,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:34:19,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:34:19,590 INFO L87 Difference]: Start difference. First operand 294639 states and 316949 transitions. Second operand 3 states. [2020-12-21 23:34:22,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:34:22,122 INFO L93 Difference]: Finished difference Result 489503 states and 525148 transitions. [2020-12-21 23:34:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:34:22,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 460 [2020-12-21 23:34:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:34:22,123 INFO L225 Difference]: With dead ends: 489503 [2020-12-21 23:34:22,123 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:34:22,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:34:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:34:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:34:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:34:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:34:22,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 460 [2020-12-21 23:34:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:34:22,413 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:34:22,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:34:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:34:22,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:34:22,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-21 23:34:22,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:34:26,329 WARN L197 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 713 DAG size of output: 145 [2020-12-21 23:34:27,915 WARN L197 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 713 DAG size of output: 145 [2020-12-21 23:34:29,301 WARN L197 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2020-12-21 23:34:30,667 WARN L197 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2020-12-21 23:34:30,672 INFO L189 CegarLoopUtils]: For program point L1621(line 1621) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L1555(line 1555) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L1489(line 1489) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,673 INFO L189 CegarLoopUtils]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L1624(line 1624) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L1558(line 1558) no Hoare annotation was computed. [2020-12-21 23:34:30,674 INFO L189 CegarLoopUtils]: For program point L1492(line 1492) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,675 INFO L189 CegarLoopUtils]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L1627(line 1627) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L1561(line 1561) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L1495(line 1495) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,676 INFO L189 CegarLoopUtils]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L1630(line 1630) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L1564(line 1564) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L1498(line 1498) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L508(lines 508 521) no Hoare annotation was computed. [2020-12-21 23:34:30,677 INFO L189 CegarLoopUtils]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1633(line 1633) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1567(line 1567) no Hoare annotation was computed. [2020-12-21 23:34:30,678 INFO L189 CegarLoopUtils]: For program point L1501(line 1501) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,679 INFO L189 CegarLoopUtils]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L1636(line 1636) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L1570(line 1570) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L1504(line 1504) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,680 INFO L189 CegarLoopUtils]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L1639(line 1639) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L1573(line 1573) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L1507(line 1507) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,681 INFO L189 CegarLoopUtils]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L1642(line 1642) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L1576(line 1576) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L1510(line 1510) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,682 INFO L189 CegarLoopUtils]: For program point L388(lines 388 405) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,683 INFO L189 CegarLoopUtils]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L720(lines 720 741) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L1645(line 1645) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L1579(line 1579) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L1513(line 1513) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,684 INFO L189 CegarLoopUtils]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L1648(line 1648) no Hoare annotation was computed. [2020-12-21 23:34:30,685 INFO L189 CegarLoopUtils]: For program point L1582(line 1582) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L1516(line 1516) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,686 INFO L189 CegarLoopUtils]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1618) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L1651(line 1651) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L1585(line 1585) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L1519(line 1519) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L66(lines 66 81) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,687 INFO L189 CegarLoopUtils]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L1654(line 1654) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L1588(line 1588) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L1522(line 1522) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,688 INFO L189 CegarLoopUtils]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L928(lines 928 945) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L202(lines 202 221) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2020-12-21 23:34:30,689 INFO L189 CegarLoopUtils]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1657(line 1657) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1591(line 1591) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L1525(line 1525) no Hoare annotation was computed. [2020-12-21 23:34:30,690 INFO L189 CegarLoopUtils]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,691 INFO L189 CegarLoopUtils]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,691 INFO L189 CegarLoopUtils]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,691 INFO L185 CegarLoopUtils]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse7 (<= 2 ~a3~0)) (.cse2 (= ~a27~0 1)) (.cse15 (= ~a3~0 1)) (.cse6 (<= ~a3~0 0)) (.cse14 (= ~a16~0 1)) (.cse0 (= ~a12~0 1)) (.cse12 (= ~a6~0 1)) (.cse1 (= ~a5~0 1)) (.cse3 (= ~a26~0 1)) (.cse8 (<= ~a27~0 0)) (.cse4 (= ~a18~0 1)) (.cse9 (= ~a12~0 0)) (.cse10 (= ~a11~0 1)) (.cse11 (= ~a15~0 1)) (.cse13 (= ~a29~0 1)) (.cse5 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse7 .cse8 .cse4 .cse9 .cse10 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse13 .cse5) (and .cse0 .cse1 .cse7 .cse3 .cse8 .cse4 .cse5) (and .cse0 .cse1 .cse8 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse7 .cse4 .cse12) (and .cse1 .cse14 .cse3 .cse8 .cse4 .cse9 .cse10 .cse11 .cse5) (and .cse1 .cse2 .cse4 .cse9 .cse12) (and .cse1 .cse3 .cse8 .cse4 .cse9 .cse12) (and .cse1 .cse2 .cse4 .cse9 .cse5) (and .cse1 .cse8 .cse4 .cse9 .cse12 .cse15) (and .cse0 .cse1 .cse2 .cse7 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse12 .cse13) (and .cse0 .cse1 .cse3 .cse8 .cse4 .cse10 .cse5) (and .cse7 .cse1 .cse8 .cse4 .cse9 .cse12) (and .cse1 .cse8 .cse4 .cse9 .cse5 .cse15) (and .cse0 .cse1 .cse2 .cse4 .cse12 .cse6) (and .cse0 .cse1 .cse8 .cse4 .cse12 .cse15) (and .cse0 .cse1 .cse8 .cse4 .cse12 .cse6) (and .cse0 .cse1 (= ~a26~0 0) .cse14 .cse8 .cse4 .cse12) (and .cse0 .cse1 .cse3 .cse8 .cse4 .cse12) (and .cse1 .cse3 .cse8 .cse4 .cse9 .cse10 .cse11 .cse13 .cse5))) [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L1594(line 1594) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L1528(line 1528) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,692 INFO L192 CegarLoopUtils]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2020-12-21 23:34:30,692 INFO L189 CegarLoopUtils]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L1597(line 1597) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L1531(line 1531) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,693 INFO L189 CegarLoopUtils]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L1600(line 1600) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L1534(line 1534) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,694 INFO L189 CegarLoopUtils]: For program point L478(lines 478 488) no Hoare annotation was computed. [2020-12-21 23:34:30,695 INFO L189 CegarLoopUtils]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2020-12-21 23:34:30,695 INFO L189 CegarLoopUtils]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,695 INFO L185 CegarLoopUtils]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse7 (<= 2 ~a3~0)) (.cse2 (= ~a27~0 1)) (.cse15 (= ~a3~0 1)) (.cse6 (<= ~a3~0 0)) (.cse14 (= ~a16~0 1)) (.cse0 (= ~a12~0 1)) (.cse12 (= ~a6~0 1)) (.cse1 (= ~a5~0 1)) (.cse3 (= ~a26~0 1)) (.cse8 (<= ~a27~0 0)) (.cse4 (= ~a18~0 1)) (.cse9 (= ~a12~0 0)) (.cse10 (= ~a11~0 1)) (.cse11 (= ~a15~0 1)) (.cse13 (= ~a29~0 1)) (.cse5 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse7 .cse8 .cse4 .cse9 .cse10 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse13 .cse5) (and .cse0 .cse1 .cse7 .cse3 .cse8 .cse4 .cse5) (and .cse0 .cse1 .cse8 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse7 .cse4 .cse12) (and .cse1 .cse14 .cse3 .cse8 .cse4 .cse9 .cse10 .cse11 .cse5) (and .cse1 .cse2 .cse4 .cse9 .cse12) (and .cse1 .cse3 .cse8 .cse4 .cse9 .cse12) (and .cse1 .cse2 .cse4 .cse9 .cse5) (and .cse1 .cse8 .cse4 .cse9 .cse12 .cse15) (and .cse0 .cse1 .cse2 .cse7 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse12 .cse13) (and .cse0 .cse1 .cse3 .cse8 .cse4 .cse10 .cse5) (and .cse7 .cse1 .cse8 .cse4 .cse9 .cse12) (and .cse1 .cse8 .cse4 .cse9 .cse5 .cse15) (and .cse0 .cse1 .cse2 .cse4 .cse12 .cse6) (and .cse0 .cse1 .cse8 .cse4 .cse12 .cse15) (and .cse0 .cse1 .cse8 .cse4 .cse12 .cse6) (and .cse0 .cse1 (= ~a26~0 0) .cse14 .cse8 .cse4 .cse12) (and .cse0 .cse1 .cse3 .cse8 .cse4 .cse12) (and .cse1 .cse3 .cse8 .cse4 .cse9 .cse10 .cse11 .cse13 .cse5))) [2020-12-21 23:34:30,695 INFO L189 CegarLoopUtils]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,695 INFO L189 CegarLoopUtils]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,695 INFO L189 CegarLoopUtils]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,695 INFO L189 CegarLoopUtils]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L1603(line 1603) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L1537(line 1537) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,696 INFO L189 CegarLoopUtils]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L879(lines 879 897) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L1606(line 1606) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L1540(line 1540) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L1673(line 1673) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,697 INFO L189 CegarLoopUtils]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1609(line 1609) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1543(line 1543) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1477(line 1477) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,698 INFO L189 CegarLoopUtils]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,699 INFO L189 CegarLoopUtils]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L1612(line 1612) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L1546(line 1546) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L1480(line 1480) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:34:30,700 INFO L189 CegarLoopUtils]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1615(line 1615) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1549(line 1549) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1483(line 1483) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,701 INFO L189 CegarLoopUtils]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,702 INFO L189 CegarLoopUtils]: For program point L1618(line 1618) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L1552(line 1552) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L1486(line 1486) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L695(lines 695 709) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,703 INFO L189 CegarLoopUtils]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,704 INFO L189 CegarLoopUtils]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2020-12-21 23:34:30,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:34:30 BoogieIcfgContainer [2020-12-21 23:34:30,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:34:30,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:34:30,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:34:30,738 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:34:30,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:33:07" (3/4) ... [2020-12-21 23:34:30,742 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:34:30,782 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-21 23:34:30,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:34:30,789 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:34:30,793 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:34:31,007 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem03_label24.c-witness.graphml [2020-12-21 23:34:31,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:34:31,008 INFO L168 Benchmark]: Toolchain (without parser) took 87730.83 ms. Allocated memory was 168.8 MB in the beginning and 7.9 GB in the end (delta: 7.8 GB). Free memory was 138.5 MB in the beginning and 6.7 GB in the end (delta: -6.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-12-21 23:34:31,009 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 168.8 MB. Free memory is still 140.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:34:31,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1198.59 ms. Allocated memory is still 168.8 MB. Free memory was 138.2 MB in the beginning and 111.3 MB in the end (delta: 26.9 MB). Peak memory consumption was 29.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:34:31,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 169.31 ms. Allocated memory is still 168.8 MB. Free memory was 111.3 MB in the beginning and 96.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-21 23:34:31,010 INFO L168 Benchmark]: Boogie Preprocessor took 136.24 ms. Allocated memory is still 168.8 MB. Free memory was 96.6 MB in the beginning and 86.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:34:31,010 INFO L168 Benchmark]: RCFGBuilder took 2791.32 ms. Allocated memory was 168.8 MB in the beginning and 317.7 MB in the end (delta: 148.9 MB). Free memory was 86.2 MB in the beginning and 274.9 MB in the end (delta: -188.7 MB). Peak memory consumption was 60.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:34:31,011 INFO L168 Benchmark]: TraceAbstraction took 83154.81 ms. Allocated memory was 317.7 MB in the beginning and 7.9 GB in the end (delta: 7.6 GB). Free memory was 274.3 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. [2020-12-21 23:34:31,011 INFO L168 Benchmark]: Witness Printer took 269.49 ms. Allocated memory is still 7.9 GB. Free memory was 6.7 GB in the beginning and 6.7 GB in the end (delta: 38.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. [2020-12-21 23:34:31,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 168.8 MB. Free memory is still 140.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1198.59 ms. Allocated memory is still 168.8 MB. Free memory was 138.2 MB in the beginning and 111.3 MB in the end (delta: 26.9 MB). Peak memory consumption was 29.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 169.31 ms. Allocated memory is still 168.8 MB. Free memory was 111.3 MB in the beginning and 96.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 136.24 ms. Allocated memory is still 168.8 MB. Free memory was 96.6 MB in the beginning and 86.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2791.32 ms. Allocated memory was 168.8 MB in the beginning and 317.7 MB in the end (delta: 148.9 MB). Free memory was 86.2 MB in the beginning and 274.9 MB in the end (delta: -188.7 MB). Peak memory consumption was 60.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 83154.81 ms. Allocated memory was 317.7 MB in the beginning and 7.9 GB in the end (delta: 7.6 GB). Free memory was 274.3 MB in the beginning and 6.7 GB in the end (delta: -6.4 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. * Witness Printer took 269.49 ms. Allocated memory is still 7.9 GB. Free memory was 6.7 GB in the beginning and 6.7 GB in the end (delta: 38.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1618]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a6 <= 0) && a3 <= 0) || ((((((a5 == 1 && 2 <= a3) && a27 <= 0) && a18 == 1) && a12 == 0) && a11 == 1) && a6 <= 0)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a15 == 1) && a6 == 1)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a29 == 1) && a6 <= 0)) || ((((((a12 == 1 && a5 == 1) && 2 <= a3) && a26 == 1) && a27 <= 0) && a18 == 1) && a6 <= 0)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a18 == 1) && a6 <= 0) && a3 <= 0)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && 2 <= a3) && a18 == 1) && a6 == 1)) || ((((((((a5 == 1 && a16 == 1) && a26 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a11 == 1) && a15 == 1) && a6 <= 0)) || ((((a5 == 1 && a27 == 1) && a18 == 1) && a12 == 0) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a6 == 1)) || ((((a5 == 1 && a27 == 1) && a18 == 1) && a12 == 0) && a6 <= 0)) || (((((a5 == 1 && a27 <= 0) && a18 == 1) && a12 == 0) && a6 == 1) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && 2 <= a3) && a18 == 1) && a6 <= 0)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a6 == 1) && a29 == 1)) || ((((((a12 == 1 && a5 == 1) && a26 == 1) && a27 <= 0) && a18 == 1) && a11 == 1) && a6 <= 0)) || (((((2 <= a3 && a5 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a6 == 1)) || (((((a5 == 1 && a27 <= 0) && a18 == 1) && a12 == 0) && a6 <= 0) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && a18 == 1) && a6 == 1) && a3 <= 0)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a18 == 1) && a6 == 1) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a18 == 1) && a6 == 1) && a3 <= 0)) || ((((((a12 == 1 && a5 == 1) && a26 == 0) && a16 == 1) && a27 <= 0) && a18 == 1) && a6 == 1)) || (((((a12 == 1 && a5 == 1) && a26 == 1) && a27 <= 0) && a18 == 1) && a6 == 1)) || ((((((((a5 == 1 && a26 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a11 == 1) && a15 == 1) && a29 == 1) && a6 <= 0) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a6 <= 0) && a3 <= 0) || ((((((a5 == 1 && 2 <= a3) && a27 <= 0) && a18 == 1) && a12 == 0) && a11 == 1) && a6 <= 0)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a15 == 1) && a6 == 1)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a29 == 1) && a6 <= 0)) || ((((((a12 == 1 && a5 == 1) && 2 <= a3) && a26 == 1) && a27 <= 0) && a18 == 1) && a6 <= 0)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a18 == 1) && a6 <= 0) && a3 <= 0)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && 2 <= a3) && a18 == 1) && a6 == 1)) || ((((((((a5 == 1 && a16 == 1) && a26 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a11 == 1) && a15 == 1) && a6 <= 0)) || ((((a5 == 1 && a27 == 1) && a18 == 1) && a12 == 0) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a6 == 1)) || ((((a5 == 1 && a27 == 1) && a18 == 1) && a12 == 0) && a6 <= 0)) || (((((a5 == 1 && a27 <= 0) && a18 == 1) && a12 == 0) && a6 == 1) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && 2 <= a3) && a18 == 1) && a6 <= 0)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == 1) && a18 == 1) && a6 == 1) && a29 == 1)) || ((((((a12 == 1 && a5 == 1) && a26 == 1) && a27 <= 0) && a18 == 1) && a11 == 1) && a6 <= 0)) || (((((2 <= a3 && a5 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a6 == 1)) || (((((a5 == 1 && a27 <= 0) && a18 == 1) && a12 == 0) && a6 <= 0) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && a18 == 1) && a6 == 1) && a3 <= 0)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a18 == 1) && a6 == 1) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a18 == 1) && a6 == 1) && a3 <= 0)) || ((((((a12 == 1 && a5 == 1) && a26 == 0) && a16 == 1) && a27 <= 0) && a18 == 1) && a6 == 1)) || (((((a12 == 1 && a5 == 1) && a26 == 1) && a27 <= 0) && a18 == 1) && a6 == 1)) || ((((((((a5 == 1 && a26 == 1) && a27 <= 0) && a18 == 1) && a12 == 0) && a11 == 1) && a15 == 1) && a29 == 1) && a6 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 74.9s, OverallIterations: 18, TraceHistogramMax: 6, AutomataDifference: 34.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3228 SDtfs, 5802 SDslu, 920 SDs, 0 SdLazy, 14261 SolverSat, 2401 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2914 GetRequests, 2860 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=303165occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 23.9s AutomataMinimizationTime, 18 MinimizatonAttempts, 72888 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 1145 NumberOfFragments, 949 HoareAnnotationTreeSize, 3 FomulaSimplifications, 36822 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4404 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 7698 NumberOfCodeBlocks, 7698 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7671 ConstructedInterpolants, 0 QuantifiedInterpolants, 10079672 SizeOfPredicates, 4 NumberOfNonLiveVariables, 5225 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 27 InterpolantComputations, 17 PerfectInterpolantSequences, 3742/4009 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...