/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:40:09,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:40:09,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:40:09,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:40:09,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:40:09,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:40:09,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:40:09,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:40:09,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:40:09,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:40:09,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:40:09,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:40:09,223 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:40:09,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:40:09,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:40:09,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:40:09,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:40:09,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:40:09,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:40:09,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:40:09,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:40:09,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:40:09,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:40:09,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:40:09,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:40:09,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:40:09,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:40:09,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:40:09,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:40:09,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:40:09,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:40:09,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:40:09,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:40:09,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:40:09,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:40:09,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:40:09,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:40:09,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:40:09,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:40:09,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:40:09,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:40:09,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:40:09,689 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:40:09,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-11-06 22:40:09,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30866dc3d/f624d253c3f043cea7dc608d7762410e/FLAG0c0b68bcb [2020-11-06 22:40:10,564 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:40:10,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-11-06 22:40:10,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30866dc3d/f624d253c3f043cea7dc608d7762410e/FLAG0c0b68bcb [2020-11-06 22:40:10,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30866dc3d/f624d253c3f043cea7dc608d7762410e [2020-11-06 22:40:10,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:40:10,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:40:10,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:40:10,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:40:10,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:40:10,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:10" (1/1) ... [2020-11-06 22:40:10,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65647fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:10, skipping insertion in model container [2020-11-06 22:40:10,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:40:10" (1/1) ... [2020-11-06 22:40:10,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:40:10,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:40:11,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:40:11,436 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:40:11,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:40:11,582 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:40:11,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11 WrapperNode [2020-11-06 22:40:11,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:40:11,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:40:11,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:40:11,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:40:11,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (1/1) ... [2020-11-06 22:40:11,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (1/1) ... [2020-11-06 22:40:11,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (1/1) ... [2020-11-06 22:40:11,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (1/1) ... [2020-11-06 22:40:11,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (1/1) ... [2020-11-06 22:40:11,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (1/1) ... [2020-11-06 22:40:11,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (1/1) ... [2020-11-06 22:40:11,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:40:11,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:40:11,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:40:11,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:40:11,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (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 [2020-11-06 22:40:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:40:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:40:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:40:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:40:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:40:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:40:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:40:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:40:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:40:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:40:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:40:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:40:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:40:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:40:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:40:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:40:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:40:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:40:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:40:13,348 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:40:13,348 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:40:13,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:13 BoogieIcfgContainer [2020-11-06 22:40:13,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:40:13,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:40:13,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:40:13,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:40:13,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:40:10" (1/3) ... [2020-11-06 22:40:13,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5d3442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:13, skipping insertion in model container [2020-11-06 22:40:13,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:40:11" (2/3) ... [2020-11-06 22:40:13,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5d3442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:40:13, skipping insertion in model container [2020-11-06 22:40:13,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:40:13" (3/3) ... [2020-11-06 22:40:13,367 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2020-11-06 22:40:13,385 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:40:13,389 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:40:13,402 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:40:13,432 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:40:13,433 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:40:13,433 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:40:13,433 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:40:13,433 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:40:13,433 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:40:13,433 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:40:13,434 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:40:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-11-06 22:40:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-06 22:40:13,467 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:13,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:40:13,469 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:13,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:13,476 INFO L82 PathProgramCache]: Analyzing trace with hash 647699858, now seen corresponding path program 1 times [2020-11-06 22:40:13,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:13,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196412200] [2020-11-06 22:40:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:13,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:13,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196412200] [2020-11-06 22:40:13,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:40:13,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 22:40:13,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678685479] [2020-11-06 22:40:13,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:40:13,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:13,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:40:13,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:40:13,943 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-11-06 22:40:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:15,779 INFO L93 Difference]: Finished difference Result 601 states and 1027 transitions. [2020-11-06 22:40:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:40:15,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-11-06 22:40:15,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:15,808 INFO L225 Difference]: With dead ends: 601 [2020-11-06 22:40:15,808 INFO L226 Difference]: Without dead ends: 303 [2020-11-06 22:40:15,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:40:15,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-11-06 22:40:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-11-06 22:40:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-11-06 22:40:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 431 transitions. [2020-11-06 22:40:15,900 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 431 transitions. Word has length 45 [2020-11-06 22:40:15,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:15,901 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 431 transitions. [2020-11-06 22:40:15,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:40:15,901 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 431 transitions. [2020-11-06 22:40:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-11-06 22:40:15,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:15,908 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, 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] [2020-11-06 22:40:15,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:40:15,908 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:15,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1927318583, now seen corresponding path program 1 times [2020-11-06 22:40:15,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:15,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496344896] [2020-11-06 22:40:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:16,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:16,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496344896] [2020-11-06 22:40:16,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:40:16,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:40:16,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252613369] [2020-11-06 22:40:16,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:40:16,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:16,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:40:16,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:40:16,412 INFO L87 Difference]: Start difference. First operand 299 states and 431 transitions. Second operand 7 states. [2020-11-06 22:40:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:18,152 INFO L93 Difference]: Finished difference Result 910 states and 1353 transitions. [2020-11-06 22:40:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 22:40:18,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 119 [2020-11-06 22:40:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:18,160 INFO L225 Difference]: With dead ends: 910 [2020-11-06 22:40:18,161 INFO L226 Difference]: Without dead ends: 617 [2020-11-06 22:40:18,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:40:18,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-11-06 22:40:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 597. [2020-11-06 22:40:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-11-06 22:40:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 783 transitions. [2020-11-06 22:40:18,221 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 783 transitions. Word has length 119 [2020-11-06 22:40:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:18,222 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 783 transitions. [2020-11-06 22:40:18,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:40:18,222 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 783 transitions. [2020-11-06 22:40:18,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-11-06 22:40:18,235 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:18,235 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, 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] [2020-11-06 22:40:18,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:40:18,236 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:18,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:18,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1757689485, now seen corresponding path program 1 times [2020-11-06 22:40:18,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:18,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442171227] [2020-11-06 22:40:18,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:18,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:18,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:18,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442171227] [2020-11-06 22:40:18,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775971149] [2020-11-06 22:40:18,750 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 [2020-11-06 22:40:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:18,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-06 22:40:18,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:40:19,117 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-06 22:40:19,157 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-06 22:40:19,184 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-06 22:40:19,412 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-06 22:40:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:19,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:40:19,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-11-06 22:40:19,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550087003] [2020-11-06 22:40:19,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-06 22:40:19,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:19,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-06 22:40:19,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:40:19,544 INFO L87 Difference]: Start difference. First operand 597 states and 783 transitions. Second operand 13 states. [2020-11-06 22:40:21,244 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-11-06 22:40:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:24,465 INFO L93 Difference]: Finished difference Result 1984 states and 2740 transitions. [2020-11-06 22:40:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-06 22:40:24,467 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-11-06 22:40:24,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:24,478 INFO L225 Difference]: With dead ends: 1984 [2020-11-06 22:40:24,479 INFO L226 Difference]: Without dead ends: 1366 [2020-11-06 22:40:24,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-11-06 22:40:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-11-06 22:40:24,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1338. [2020-11-06 22:40:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1338 states. [2020-11-06 22:40:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1750 transitions. [2020-11-06 22:40:24,557 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1750 transitions. Word has length 124 [2020-11-06 22:40:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:24,558 INFO L481 AbstractCegarLoop]: Abstraction has 1338 states and 1750 transitions. [2020-11-06 22:40:24,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-06 22:40:24,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1750 transitions. [2020-11-06 22:40:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-11-06 22:40:24,562 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:24,563 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, 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] [2020-11-06 22:40:24,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:40:24,777 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:24,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1586199379, now seen corresponding path program 1 times [2020-11-06 22:40:24,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:24,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009249290] [2020-11-06 22:40:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:24,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:24,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:25,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009249290] [2020-11-06 22:40:25,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:40:25,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:40:25,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982816716] [2020-11-06 22:40:25,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:40:25,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:25,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:40:25,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:40:25,172 INFO L87 Difference]: Start difference. First operand 1338 states and 1750 transitions. Second operand 8 states. [2020-11-06 22:40:27,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:27,194 INFO L93 Difference]: Finished difference Result 3463 states and 4879 transitions. [2020-11-06 22:40:27,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-06 22:40:27,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 140 [2020-11-06 22:40:27,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:27,214 INFO L225 Difference]: With dead ends: 3463 [2020-11-06 22:40:27,215 INFO L226 Difference]: Without dead ends: 2274 [2020-11-06 22:40:27,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:40:27,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-11-06 22:40:27,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1936. [2020-11-06 22:40:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2020-11-06 22:40:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2570 transitions. [2020-11-06 22:40:27,335 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2570 transitions. Word has length 140 [2020-11-06 22:40:27,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:27,337 INFO L481 AbstractCegarLoop]: Abstraction has 1936 states and 2570 transitions. [2020-11-06 22:40:27,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:40:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2570 transitions. [2020-11-06 22:40:27,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-06 22:40:27,343 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:27,344 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, 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] [2020-11-06 22:40:27,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 22:40:27,344 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:27,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:27,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1739239261, now seen corresponding path program 1 times [2020-11-06 22:40:27,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:27,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929721541] [2020-11-06 22:40:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:27,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:27,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:27,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929721541] [2020-11-06 22:40:27,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:40:27,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:40:27,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910734348] [2020-11-06 22:40:27,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:40:27,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:27,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:40:27,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:40:27,828 INFO L87 Difference]: Start difference. First operand 1936 states and 2570 transitions. Second operand 8 states. [2020-11-06 22:40:28,311 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-11-06 22:40:29,501 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-11-06 22:40:30,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:30,394 INFO L93 Difference]: Finished difference Result 4244 states and 5585 transitions. [2020-11-06 22:40:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:40:30,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-11-06 22:40:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:30,411 INFO L225 Difference]: With dead ends: 4244 [2020-11-06 22:40:30,411 INFO L226 Difference]: Without dead ends: 2314 [2020-11-06 22:40:30,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:40:30,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2020-11-06 22:40:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2232. [2020-11-06 22:40:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2020-11-06 22:40:30,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 2887 transitions. [2020-11-06 22:40:30,516 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 2887 transitions. Word has length 141 [2020-11-06 22:40:30,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:30,516 INFO L481 AbstractCegarLoop]: Abstraction has 2232 states and 2887 transitions. [2020-11-06 22:40:30,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:40:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 2887 transitions. [2020-11-06 22:40:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-11-06 22:40:30,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:30,525 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, 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] [2020-11-06 22:40:30,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 22:40:30,526 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:30,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:30,529 INFO L82 PathProgramCache]: Analyzing trace with hash 148963777, now seen corresponding path program 1 times [2020-11-06 22:40:30,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:30,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266218767] [2020-11-06 22:40:30,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:30,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:30,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:30,847 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-06 22:40:30,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266218767] [2020-11-06 22:40:30,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410220716] [2020-11-06 22:40:30,848 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 [2020-11-06 22:40:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:30,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:40:30,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:40:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:31,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:40:31,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-11-06 22:40:31,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116798752] [2020-11-06 22:40:31,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:40:31,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:31,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:40:31,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:40:31,042 INFO L87 Difference]: Start difference. First operand 2232 states and 2887 transitions. Second operand 3 states. [2020-11-06 22:40:31,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:31,837 INFO L93 Difference]: Finished difference Result 2970 states and 3929 transitions. [2020-11-06 22:40:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:40:31,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-11-06 22:40:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:31,857 INFO L225 Difference]: With dead ends: 2970 [2020-11-06 22:40:31,857 INFO L226 Difference]: Without dead ends: 2967 [2020-11-06 22:40:31,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:40:31,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2020-11-06 22:40:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2528. [2020-11-06 22:40:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2528 states. [2020-11-06 22:40:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3338 transitions. [2020-11-06 22:40:31,956 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3338 transitions. Word has length 182 [2020-11-06 22:40:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:31,957 INFO L481 AbstractCegarLoop]: Abstraction has 2528 states and 3338 transitions. [2020-11-06 22:40:31,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:40:31,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3338 transitions. [2020-11-06 22:40:31,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-06 22:40:31,961 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:31,961 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-11-06 22:40:32,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:40:32,175 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:32,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:32,176 INFO L82 PathProgramCache]: Analyzing trace with hash 578157520, now seen corresponding path program 1 times [2020-11-06 22:40:32,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:32,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528035634] [2020-11-06 22:40:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:32,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:32,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:32,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-06 22:40:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:40:32,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528035634] [2020-11-06 22:40:32,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89211341] [2020-11-06 22:40:32,468 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 [2020-11-06 22:40:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:32,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:40:32,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:40:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:32,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:40:32,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:40:32,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179901305] [2020-11-06 22:40:32,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:40:32,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:32,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:40:32,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:40:32,779 INFO L87 Difference]: Start difference. First operand 2528 states and 3338 transitions. Second operand 10 states. [2020-11-06 22:40:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:36,641 INFO L93 Difference]: Finished difference Result 6834 states and 9477 transitions. [2020-11-06 22:40:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-06 22:40:36,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-11-06 22:40:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:36,668 INFO L225 Difference]: With dead ends: 6834 [2020-11-06 22:40:36,668 INFO L226 Difference]: Without dead ends: 4455 [2020-11-06 22:40:36,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2020-11-06 22:40:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4455 states. [2020-11-06 22:40:36,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4455 to 3708. [2020-11-06 22:40:36,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3708 states. [2020-11-06 22:40:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3708 states to 3708 states and 4728 transitions. [2020-11-06 22:40:36,814 INFO L78 Accepts]: Start accepts. Automaton has 3708 states and 4728 transitions. Word has length 194 [2020-11-06 22:40:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:36,815 INFO L481 AbstractCegarLoop]: Abstraction has 3708 states and 4728 transitions. [2020-11-06 22:40:36,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:40:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3708 states and 4728 transitions. [2020-11-06 22:40:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-11-06 22:40:36,825 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:36,826 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-11-06 22:40:37,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:40:37,041 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:37,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:37,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1024525642, now seen corresponding path program 1 times [2020-11-06 22:40:37,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:37,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502322276] [2020-11-06 22:40:37,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:37,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:37,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:37,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-11-06 22:40:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:40:37,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502322276] [2020-11-06 22:40:37,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545956260] [2020-11-06 22:40:37,448 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 [2020-11-06 22:40:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:37,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:40:37,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:40:37,883 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:40:37,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:40:37,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:40:37,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395907956] [2020-11-06 22:40:37,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:40:37,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:37,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:40:37,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:40:37,887 INFO L87 Difference]: Start difference. First operand 3708 states and 4728 transitions. Second operand 10 states. [2020-11-06 22:40:40,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:40,564 INFO L93 Difference]: Finished difference Result 7285 states and 9354 transitions. [2020-11-06 22:40:40,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-06 22:40:40,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 242 [2020-11-06 22:40:40,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:40,584 INFO L225 Difference]: With dead ends: 7285 [2020-11-06 22:40:40,584 INFO L226 Difference]: Without dead ends: 3726 [2020-11-06 22:40:40,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-11-06 22:40:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2020-11-06 22:40:40,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3420. [2020-11-06 22:40:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3420 states. [2020-11-06 22:40:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 3905 transitions. [2020-11-06 22:40:40,698 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 3905 transitions. Word has length 242 [2020-11-06 22:40:40,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:40,699 INFO L481 AbstractCegarLoop]: Abstraction has 3420 states and 3905 transitions. [2020-11-06 22:40:40,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:40:40,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 3905 transitions. [2020-11-06 22:40:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-11-06 22:40:40,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:40,706 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-06 22:40:40,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:40:40,921 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:40,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash 32987827, now seen corresponding path program 1 times [2020-11-06 22:40:40,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:40,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497007193] [2020-11-06 22:40:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:41,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:41,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:41,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-06 22:40:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:41,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-06 22:40:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 69 proven. 60 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2020-11-06 22:40:41,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497007193] [2020-11-06 22:40:41,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243046371] [2020-11-06 22:40:41,674 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 [2020-11-06 22:40:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:41,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-06 22:40:41,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:40:41,909 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-06 22:40:41,922 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-06 22:40:41,944 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-06 22:40:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 19 proven. 113 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-11-06 22:40:42,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:40:42,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 17 [2020-11-06 22:40:42,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804720997] [2020-11-06 22:40:42,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-06 22:40:42,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:42,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-06 22:40:42,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-11-06 22:40:42,325 INFO L87 Difference]: Start difference. First operand 3420 states and 3905 transitions. Second operand 17 states. [2020-11-06 22:40:42,474 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-11-06 22:40:43,111 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-11-06 22:40:43,700 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-11-06 22:40:47,782 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-11-06 22:40:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:49,490 INFO L93 Difference]: Finished difference Result 8526 states and 10046 transitions. [2020-11-06 22:40:49,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-06 22:40:49,491 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 280 [2020-11-06 22:40:49,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:49,515 INFO L225 Difference]: With dead ends: 8526 [2020-11-06 22:40:49,516 INFO L226 Difference]: Without dead ends: 5255 [2020-11-06 22:40:49,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=277, Invalid=715, Unknown=0, NotChecked=0, Total=992 [2020-11-06 22:40:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2020-11-06 22:40:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 3865. [2020-11-06 22:40:49,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3865 states. [2020-11-06 22:40:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 4472 transitions. [2020-11-06 22:40:49,653 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 4472 transitions. Word has length 280 [2020-11-06 22:40:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:49,654 INFO L481 AbstractCegarLoop]: Abstraction has 3865 states and 4472 transitions. [2020-11-06 22:40:49,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-06 22:40:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 4472 transitions. [2020-11-06 22:40:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-11-06 22:40:49,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:40:49,668 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-06 22:40:49,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:40:49,883 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:40:49,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:40:49,884 INFO L82 PathProgramCache]: Analyzing trace with hash -440169957, now seen corresponding path program 1 times [2020-11-06 22:40:49,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:40:49,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325052008] [2020-11-06 22:40:49,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:40:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:50,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:40:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:50,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:40:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:50,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-11-06 22:40:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:50,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-11-06 22:40:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 114 proven. 3 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-11-06 22:40:50,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325052008] [2020-11-06 22:40:50,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950573150] [2020-11-06 22:40:50,252 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 [2020-11-06 22:40:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:40:50,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:40:50,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:40:50,547 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-11-06 22:40:50,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:40:50,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-11-06 22:40:50,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077875951] [2020-11-06 22:40:50,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:40:50,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:40:50,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:40:50,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:40:50,550 INFO L87 Difference]: Start difference. First operand 3865 states and 4472 transitions. Second operand 3 states. [2020-11-06 22:40:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:40:51,342 INFO L93 Difference]: Finished difference Result 8150 states and 9481 transitions. [2020-11-06 22:40:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:40:51,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2020-11-06 22:40:51,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:40:51,345 INFO L225 Difference]: With dead ends: 8150 [2020-11-06 22:40:51,345 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:40:51,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:40:51,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:40:51,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:40:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:40:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:40:51,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 338 [2020-11-06 22:40:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:40:51,361 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:40:51,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:40:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:40:51,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:40:51,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:40:51,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:40:51,996 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 177 [2020-11-06 22:40:52,753 WARN L194 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 177 [2020-11-06 22:40:53,414 WARN L194 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 49 [2020-11-06 22:40:54,006 WARN L194 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 48 [2020-11-06 22:40:55,646 WARN L194 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 252 DAG size of output: 58 [2020-11-06 22:40:56,199 WARN L194 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 48 [2020-11-06 22:40:56,203 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:40:56,203 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:40:56,203 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:40:56,203 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:40:56,203 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:40:56,204 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-11-06 22:40:56,204 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:40:56,204 INFO L266 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-11-06 22:40:56,204 INFO L266 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-11-06 22:40:56,204 INFO L266 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-11-06 22:40:56,204 INFO L266 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-11-06 22:40:56,204 INFO L266 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-11-06 22:40:56,204 INFO L266 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-11-06 22:40:56,205 INFO L266 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-11-06 22:40:56,205 INFO L266 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-11-06 22:40:56,205 INFO L266 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-11-06 22:40:56,205 INFO L266 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-11-06 22:40:56,205 INFO L266 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-11-06 22:40:56,205 INFO L266 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-11-06 22:40:56,206 INFO L266 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-11-06 22:40:56,206 INFO L266 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,206 INFO L266 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,206 INFO L266 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,206 INFO L266 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,206 INFO L266 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,206 INFO L266 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-11-06 22:40:56,207 INFO L266 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-11-06 22:40:56,208 INFO L266 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-11-06 22:40:56,209 INFO L266 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-11-06 22:40:56,210 INFO L266 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,211 INFO L266 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-11-06 22:40:56,212 INFO L266 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-11-06 22:40:56,213 INFO L266 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-11-06 22:40:56,214 INFO L266 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-11-06 22:40:56,215 INFO L266 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-11-06 22:40:56,216 INFO L262 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: (let ((.cse5 (not (<= |old(~a19~0)| 7))) (.cse3 (not (<= 9 |old(~a19~0)|))) (.cse6 (not (= 0 |old(~a10~0)|))) (.cse4 (not (= |old(~a10~0)| 1))) (.cse0 (not (<= |old(~a19~0)| 9))) (.cse1 (not (= 14 ~a4~0))) (.cse2 (not (= ~a12~0 0)))) (and (or (not (<= 2 |old(~a10~0)|)) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1 .cse2) (or .cse5 .cse4 .cse0 .cse1 .cse2) (or .cse5 .cse1 .cse6 .cse2) (or .cse4 (not (<= |old(~a1~0)| 23)) .cse1 .cse2) (or .cse3 .cse1 .cse6 .cse2) (or (not (<= 23 |old(~a1~0)|)) .cse1 .cse6 .cse2) (or .cse4 (not (< 331498 |old(~a1~0)|)) .cse0 .cse1 .cse2))) [2020-11-06 22:40:56,216 INFO L266 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-11-06 22:40:56,216 INFO L266 CegarLoopResult]: For program point L120-1(line 120) no Hoare annotation was computed. [2020-11-06 22:40:56,216 INFO L266 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-06 22:40:56,216 INFO L266 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-11-06 22:40:56,216 INFO L266 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-11-06 22:40:56,216 INFO L266 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-11-06 22:40:56,217 INFO L266 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-11-06 22:40:56,218 INFO L266 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-11-06 22:40:56,218 INFO L266 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-11-06 22:40:56,218 INFO L266 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-11-06 22:40:56,218 INFO L266 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-11-06 22:40:56,218 INFO L266 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-11-06 22:40:56,218 INFO L266 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-11-06 22:40:56,218 INFO L266 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,219 INFO L266 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-11-06 22:40:56,220 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse7 (not (<= |old(~a19~0)| 7))) (.cse0 (not (= |old(~a10~0)| 1))) (.cse5 (not (<= |old(~a19~0)| 9))) (.cse4 (not (<= 9 |old(~a19~0)|))) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse2 (not (= 14 ~a4~0))) (.cse6 (not (= 0 |old(~a10~0)|))) (.cse3 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 (not (<= |old(~a1~0)| 23)) .cse2 .cse3) (or .cse4 .cse1 .cse0 .cse2 .cse3) (or .cse1 .cse0 (not (< 331498 |old(~a1~0)|)) .cse5 .cse2 .cse3) (or (not (<= 23 |old(~a1~0)|)) .cse1 .cse2 .cse6 .cse3) (or .cse7 .cse1 .cse2 .cse6 .cse3) (or .cse1 (not (<= 2 |old(~a10~0)|)) .cse5 .cse2 .cse3) (or .cse7 .cse0 .cse1 .cse5 .cse2 .cse3) (or .cse4 .cse1 .cse2 .cse6 .cse3))) [2020-11-06 22:40:56,220 INFO L266 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-11-06 22:40:56,220 INFO L266 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-11-06 22:40:56,220 INFO L266 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-11-06 22:40:56,220 INFO L266 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-11-06 22:40:56,220 INFO L266 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-11-06 22:40:56,220 INFO L266 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-11-06 22:40:56,220 INFO L266 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,221 INFO L266 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-11-06 22:40:56,222 INFO L266 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,223 INFO L266 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-11-06 22:40:56,224 INFO L266 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L266 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L266 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L266 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L266 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L266 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L266 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:40:56,225 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 23 ~a1~0) (= 14 ~a4~0) (<= 9 ~a19~0) (= ~a10~0 0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-11-06 22:40:56,225 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:40:56,226 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:40:56,226 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-11-06 22:40:56,226 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-11-06 22:40:56,226 INFO L262 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 7)) (.cse2 (= ~a10~0 0)) (.cse0 (= ~a10~0 1)) (.cse3 (<= 9 ~a19~0))) (or (and (<= ~a19~0 9) (<= 2 ~a10~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse1) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 23)) (and .cse1 .cse2) (not (<= 9 |old(~a19~0)|)) (and .cse0 (< 331498 ~a1~0)) (and (<= 23 ~a1~0) .cse2) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse3 .cse2) (and .cse0 .cse3))) [2020-11-06 22:40:56,226 INFO L266 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-11-06 22:40:56,226 INFO L266 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-11-06 22:40:56,226 INFO L262 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 7)) (.cse2 (= ~a10~0 0)) (.cse0 (= ~a10~0 1)) (.cse3 (<= 9 ~a19~0))) (or (and (<= ~a19~0 9) (<= 2 ~a10~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse1) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 23)) (and .cse1 .cse2) (not (<= 9 |old(~a19~0)|)) (and .cse0 (< 331498 ~a1~0)) (and (<= 23 ~a1~0) .cse2) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse3 .cse2) (and .cse0 .cse3))) [2020-11-06 22:40:56,227 INFO L266 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-11-06 22:40:56,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:40:56 BoogieIcfgContainer [2020-11-06 22:40:56,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:40:56,248 INFO L168 Benchmark]: Toolchain (without parser) took 45419.10 ms. Allocated memory was 151.0 MB in the beginning and 566.2 MB in the end (delta: 415.2 MB). Free memory was 125.7 MB in the beginning and 449.3 MB in the end (delta: -323.5 MB). Peak memory consumption was 346.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:40:56,249 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 125.8 MB. Free memory was 105.8 MB in the beginning and 105.7 MB in the end (delta: 68.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:40:56,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.67 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 126.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:40:56,250 INFO L168 Benchmark]: Boogie Preprocessor took 114.53 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 122.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:40:56,251 INFO L168 Benchmark]: RCFGBuilder took 1654.57 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 94.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 42.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:40:56,252 INFO L168 Benchmark]: TraceAbstraction took 42887.89 ms. Allocated memory was 151.0 MB in the beginning and 566.2 MB in the end (delta: 415.2 MB). Free memory was 94.4 MB in the beginning and 449.3 MB in the end (delta: -354.8 MB). Peak memory consumption was 314.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:40:56,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 125.8 MB. Free memory was 105.8 MB in the beginning and 105.7 MB in the end (delta: 68.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 745.67 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 126.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 114.53 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 122.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1654.57 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 94.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 42.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42887.89 ms. Allocated memory was 151.0 MB in the beginning and 566.2 MB in the end (delta: 415.2 MB). Free memory was 94.4 MB in the beginning and 449.3 MB in the end (delta: -354.8 MB). Peak memory consumption was 314.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((((((((a19 <= 9 && 2 <= a10) || !(0 == \old(a10))) || (a10 == 1 && a19 <= 7)) || !(a12 == 0)) || !(23 <= \old(a1))) || (a10 == 1 && a1 <= 23)) || (a19 <= 7 && a10 == 0)) || !(9 <= \old(a19))) || (a10 == 1 && 331498 < a1)) || (23 <= a1 && a10 == 0)) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9)) || (9 <= a19 && a10 == 0)) || (a10 == 1 && 9 <= a19) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.1s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 28.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 486 SDtfs, 6018 SDslu, 501 SDs, 0 SdLazy, 14013 SolverSat, 1827 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1535 GetRequests, 1399 SyntacticMatches, 2 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3865occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 3354 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 310 PreInvPairs, 374 NumberOfFragments, 670 HoareAnnotationTreeSize, 310 FomulaSimplifications, 33169 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 9300 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 3165 NumberOfCodeBlocks, 3165 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3149 ConstructedInterpolants, 2 QuantifiedInterpolants, 2166221 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2812 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 2025/2261 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...