/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:10:27,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:10:27,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:10:27,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:10:27,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:10:27,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:10:27,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:10:27,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:10:27,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:10:27,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:10:27,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:10:27,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:10:27,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:10:27,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:10:27,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:10:27,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:10:27,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:10:27,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:10:27,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:10:27,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:10:27,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:10:27,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:10:27,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:10:27,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:10:27,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:10:27,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:10:27,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:10:27,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:10:27,594 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 [2020-07-20 14:10:27,613 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:10:27,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:10:27,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:10:27,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:10:27,615 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:10:27,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:10:27,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:10:27,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:10:27,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:10:27,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:10:27,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:10:27,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:10:27,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:10:27,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:10:27,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:10:27,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:10:27,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:10:27,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:10:27,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:10:27,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:10:27,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:10:27,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:10:27,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:10:27,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:10:27,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:10:27,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:10:27,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:27,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:10:27,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:10:27,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:10:27,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:10:27,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:10:27,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:10:27,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:10:27,937 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:10:27,938 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-20 14:10:28,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4c94667/f798f3178edc48b59838b184447f535c/FLAGdd3a505b7 [2020-07-20 14:10:28,595 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:10:28,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-20 14:10:28,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4c94667/f798f3178edc48b59838b184447f535c/FLAGdd3a505b7 [2020-07-20 14:10:28,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4c94667/f798f3178edc48b59838b184447f535c [2020-07-20 14:10:28,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:10:28,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:10:28,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:10:28,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:10:28,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:10:28,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:10:28" (1/1) ... [2020-07-20 14:10:28,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327cb267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:28, skipping insertion in model container [2020-07-20 14:10:28,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:10:28" (1/1) ... [2020-07-20 14:10:28,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:10:28,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:10:29,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:10:29,449 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:10:29,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:10:29,747 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:10:29,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29 WrapperNode [2020-07-20 14:10:29,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:10:29,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:10:29,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:10:29,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:10:29,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (1/1) ... [2020-07-20 14:10:29,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (1/1) ... [2020-07-20 14:10:29,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (1/1) ... [2020-07-20 14:10:29,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (1/1) ... [2020-07-20 14:10:29,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (1/1) ... [2020-07-20 14:10:29,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (1/1) ... [2020-07-20 14:10:29,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (1/1) ... [2020-07-20 14:10:29,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:10:29,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:10:29,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:10:29,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:10:29,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (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 [2020-07-20 14:10:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:10:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:10:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:10:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:10:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:10:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:10:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:10:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:10:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:10:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:10:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:10:31,413 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:10:31,414 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:10:31,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:10:31 BoogieIcfgContainer [2020-07-20 14:10:31,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:10:31,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:10:31,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:10:31,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:10:31,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:10:28" (1/3) ... [2020-07-20 14:10:31,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57881cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:10:31, skipping insertion in model container [2020-07-20 14:10:31,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:29" (2/3) ... [2020-07-20 14:10:31,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57881cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:10:31, skipping insertion in model container [2020-07-20 14:10:31,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:10:31" (3/3) ... [2020-07-20 14:10:31,438 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-07-20 14:10:31,453 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:10:31,466 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:10:31,483 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:10:31,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:10:31,518 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:10:31,518 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:10:31,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:10:31,519 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:10:31,519 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:10:31,519 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:10:31,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:10:31,549 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 14:10:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 14:10:31,567 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:31,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:10:31,568 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:31,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:31,573 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-07-20 14:10:31,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:31,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685703117] [2020-07-20 14:10:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:31,715 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:31,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:31,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:10:31,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:31,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:10:31,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685703117] [2020-07-20 14:10:31,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:10:31,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:10:31,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699937110] [2020-07-20 14:10:31,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:10:31,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:31,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:10:31,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:31,838 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 14:10:32,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:32,918 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 14:10:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:10:32,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-20 14:10:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:32,938 INFO L225 Difference]: With dead ends: 586 [2020-07-20 14:10:32,938 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 14:10:32,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 14:10:33,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 14:10:33,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 14:10:33,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 14:10:33,026 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 56 [2020-07-20 14:10:33,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:33,027 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 14:10:33,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:10:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 14:10:33,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-20 14:10:33,033 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:33,033 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, 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] [2020-07-20 14:10:33,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:33,249 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:33,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:33,250 INFO L82 PathProgramCache]: Analyzing trace with hash 371731122, now seen corresponding path program 1 times [2020-07-20 14:10:33,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:33,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567349834] [2020-07-20 14:10:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:33,354 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:33,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:33,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:10:33,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:33,417 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:33,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:10:33,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567349834] [2020-07-20 14:10:33,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:10:33,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:10:33,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608502682] [2020-07-20 14:10:33,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:10:33,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:33,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:10:33,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:33,424 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-20 14:10:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:34,247 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-20 14:10:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:10:34,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-20 14:10:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:34,255 INFO L225 Difference]: With dead ends: 868 [2020-07-20 14:10:34,256 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 14:10:34,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 14:10:34,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-20 14:10:34,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 14:10:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 14:10:34,290 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 126 [2020-07-20 14:10:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:34,291 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 14:10:34,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:10:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 14:10:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 14:10:34,294 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:34,295 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, 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] [2020-07-20 14:10:34,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:34,509 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:34,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:34,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1345148817, now seen corresponding path program 1 times [2020-07-20 14:10:34,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:34,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681615091] [2020-07-20 14:10:34,512 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:34,599 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:34,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:34,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:10:34,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:34,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:10:34,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681615091] [2020-07-20 14:10:34,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:10:34,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:10:34,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048296906] [2020-07-20 14:10:34,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:10:34,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:34,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:10:34,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:34,639 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-20 14:10:35,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:35,398 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-20 14:10:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:10:35,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 14:10:35,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:35,406 INFO L225 Difference]: With dead ends: 868 [2020-07-20 14:10:35,406 INFO L226 Difference]: Without dead ends: 866 [2020-07-20 14:10:35,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-20 14:10:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-20 14:10:35,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 14:10:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 14:10:35,440 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 133 [2020-07-20 14:10:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:35,441 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 14:10:35,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:10:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 14:10:35,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 14:10:35,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:35,445 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, 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] [2020-07-20 14:10:35,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:35,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:35,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1734171087, now seen corresponding path program 1 times [2020-07-20 14:10:35,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:35,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085346994] [2020-07-20 14:10:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:35,766 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:35,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:35,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:10:35,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:35,847 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:35,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:10:35,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085346994] [2020-07-20 14:10:35,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:10:35,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:10:35,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658976223] [2020-07-20 14:10:35,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:10:35,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:35,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:10:35,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:10:35,850 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 5 states. [2020-07-20 14:10:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:37,035 INFO L93 Difference]: Finished difference Result 1325 states and 2011 transitions. [2020-07-20 14:10:37,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:10:37,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-07-20 14:10:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:37,051 INFO L225 Difference]: With dead ends: 1325 [2020-07-20 14:10:37,051 INFO L226 Difference]: Without dead ends: 894 [2020-07-20 14:10:37,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:10:37,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-07-20 14:10:37,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 882. [2020-07-20 14:10:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-07-20 14:10:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1274 transitions. [2020-07-20 14:10:37,096 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1274 transitions. Word has length 181 [2020-07-20 14:10:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:37,097 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1274 transitions. [2020-07-20 14:10:37,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:10:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1274 transitions. [2020-07-20 14:10:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-20 14:10:37,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:37,105 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:10:37,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:37,320 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:37,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:37,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1895595301, now seen corresponding path program 1 times [2020-07-20 14:10:37,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:37,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825310720] [2020-07-20 14:10:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:37,519 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:37,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:37,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:10:37,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 14:10:37,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:10:37,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825310720] [2020-07-20 14:10:37,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:10:37,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:10:37,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097936622] [2020-07-20 14:10:37,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:10:37,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:37,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:10:37,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:37,610 INFO L87 Difference]: Start difference. First operand 882 states and 1274 transitions. Second operand 3 states. [2020-07-20 14:10:38,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:38,386 INFO L93 Difference]: Finished difference Result 2044 states and 2964 transitions. [2020-07-20 14:10:38,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:10:38,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2020-07-20 14:10:38,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:38,392 INFO L225 Difference]: With dead ends: 2044 [2020-07-20 14:10:38,392 INFO L226 Difference]: Without dead ends: 735 [2020-07-20 14:10:38,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:10:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-20 14:10:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-07-20 14:10:38,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-20 14:10:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1050 transitions. [2020-07-20 14:10:38,418 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1050 transitions. Word has length 252 [2020-07-20 14:10:38,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:38,419 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 1050 transitions. [2020-07-20 14:10:38,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:10:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1050 transitions. [2020-07-20 14:10:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-07-20 14:10:38,425 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:38,425 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:10:38,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:38,629 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:38,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:38,630 INFO L82 PathProgramCache]: Analyzing trace with hash -461645190, now seen corresponding path program 1 times [2020-07-20 14:10:38,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:38,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387497720] [2020-07-20 14:10:38,631 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:38,770 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:38,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:38,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:10:38,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 14:10:38,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:10:38,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387497720] [2020-07-20 14:10:38,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:10:38,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:10:38,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511778648] [2020-07-20 14:10:38,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:10:38,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:38,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:10:38,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:10:38,901 INFO L87 Difference]: Start difference. First operand 735 states and 1050 transitions. Second operand 5 states. [2020-07-20 14:10:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:39,924 INFO L93 Difference]: Finished difference Result 1776 states and 2564 transitions. [2020-07-20 14:10:39,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:10:39,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-07-20 14:10:39,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:39,932 INFO L225 Difference]: With dead ends: 1776 [2020-07-20 14:10:39,933 INFO L226 Difference]: Without dead ends: 1047 [2020-07-20 14:10:39,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:10:39,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-20 14:10:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1039. [2020-07-20 14:10:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-07-20 14:10:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1427 transitions. [2020-07-20 14:10:39,976 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1427 transitions. Word has length 273 [2020-07-20 14:10:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:39,976 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1427 transitions. [2020-07-20 14:10:39,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:10:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1427 transitions. [2020-07-20 14:10:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-20 14:10:39,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:39,984 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:10:40,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:40,199 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1951155213, now seen corresponding path program 1 times [2020-07-20 14:10:40,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:40,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286294457] [2020-07-20 14:10:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:40,390 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:40,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:40,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:10:40,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:40,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:10:40,718 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:40,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286294457] [2020-07-20 14:10:40,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:10:40,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:10:40,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287477954] [2020-07-20 14:10:40,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:10:40,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:40,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:10:40,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:10:40,722 INFO L87 Difference]: Start difference. First operand 1039 states and 1427 transitions. Second operand 6 states. [2020-07-20 14:10:42,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:42,014 INFO L93 Difference]: Finished difference Result 2696 states and 3833 transitions. [2020-07-20 14:10:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:10:42,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-07-20 14:10:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:42,031 INFO L225 Difference]: With dead ends: 2696 [2020-07-20 14:10:42,031 INFO L226 Difference]: Without dead ends: 1075 [2020-07-20 14:10:42,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 548 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:10:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2020-07-20 14:10:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 896. [2020-07-20 14:10:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-07-20 14:10:42,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1131 transitions. [2020-07-20 14:10:42,072 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1131 transitions. Word has length 276 [2020-07-20 14:10:42,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:42,072 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1131 transitions. [2020-07-20 14:10:42,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:10:42,072 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1131 transitions. [2020-07-20 14:10:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-07-20 14:10:42,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:42,078 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:10:42,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:42,292 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1640604435, now seen corresponding path program 1 times [2020-07-20 14:10:42,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:42,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640009059] [2020-07-20 14:10:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:42,431 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:42,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:42,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:10:42,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 14:10:42,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:10:42,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640009059] [2020-07-20 14:10:42,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:10:42,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:10:42,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938012560] [2020-07-20 14:10:42,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:10:42,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:42,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:10:42,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:10:42,576 INFO L87 Difference]: Start difference. First operand 896 states and 1131 transitions. Second operand 5 states. [2020-07-20 14:10:43,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:43,619 INFO L93 Difference]: Finished difference Result 2257 states and 2970 transitions. [2020-07-20 14:10:43,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:10:43,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-07-20 14:10:43,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:43,629 INFO L225 Difference]: With dead ends: 2257 [2020-07-20 14:10:43,629 INFO L226 Difference]: Without dead ends: 1367 [2020-07-20 14:10:43,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:10:43,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-07-20 14:10:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1339. [2020-07-20 14:10:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1339 states. [2020-07-20 14:10:43,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1632 transitions. [2020-07-20 14:10:43,686 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1632 transitions. Word has length 292 [2020-07-20 14:10:43,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:43,687 INFO L479 AbstractCegarLoop]: Abstraction has 1339 states and 1632 transitions. [2020-07-20 14:10:43,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:10:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1632 transitions. [2020-07-20 14:10:43,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-07-20 14:10:43,695 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:10:43,695 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:10:43,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:43,909 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:10:43,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:10:43,910 INFO L82 PathProgramCache]: Analyzing trace with hash 753349346, now seen corresponding path program 1 times [2020-07-20 14:10:43,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:10:43,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042579208] [2020-07-20 14:10:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:44,051 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:10:44,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:10:44,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:10:44,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:10:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:44,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:10:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:10:44,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042579208] [2020-07-20 14:10:44,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:10:44,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:10:44,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476528955] [2020-07-20 14:10:44,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:10:44,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:10:44,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:10:44,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:10:44,350 INFO L87 Difference]: Start difference. First operand 1339 states and 1632 transitions. Second operand 7 states. [2020-07-20 14:10:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:10:46,187 INFO L93 Difference]: Finished difference Result 3284 states and 4142 transitions. [2020-07-20 14:10:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 14:10:46,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 293 [2020-07-20 14:10:46,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:10:46,196 INFO L225 Difference]: With dead ends: 3284 [2020-07-20 14:10:46,196 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:10:46,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 584 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:10:46,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:10:46,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:10:46,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:10:46,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:10:46,207 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 293 [2020-07-20 14:10:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:10:46,208 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:10:46,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:10:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:10:46,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:10:46,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:10:46,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:10:47,381 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 47 [2020-07-20 14:10:47,547 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2020-07-20 14:10:47,714 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2020-07-20 14:10:47,719 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:10:47,719 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 |old(~a1~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 14:10:47,720 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:10:47,720 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 14:10:47,720 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,720 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,720 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,720 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,720 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,721 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,721 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 14:10:47,721 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 14:10:47,721 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 14:10:47,721 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 14:10:47,722 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 14:10:47,722 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 14:10:47,722 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 14:10:47,722 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 14:10:47,723 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 14:10:47,723 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 14:10:47,723 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 14:10:47,723 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,723 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,723 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,723 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 14:10:47,724 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 14:10:47,725 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 14:10:47,725 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 14:10:47,725 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 14:10:47,725 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 14:10:47,725 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 14:10:47,725 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,726 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 14:10:47,727 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 14:10:47,727 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 14:10:47,727 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 14:10:47,727 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 14:10:47,727 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 14:10:47,727 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 14:10:47,727 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,728 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 14:10:47,729 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,730 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 14:10:47,731 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,732 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 14:10:47,733 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 14:10:47,734 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 14:10:47,734 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 14:10:47,734 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 14:10:47,734 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 14:10:47,734 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 14:10:47,734 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,734 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 14:10:47,735 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 14:10:47,736 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,737 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 14:10:47,738 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 14:10:47,739 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 14:10:47,739 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (<= ~a10~0 |old(~a10~0)|)) (.cse0 (<= ~a1~0 |old(~a1~0)|)) (.cse5 (<= |old(~a10~0)| ~a10~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse3 (<= 9 ~a19~0)) (.cse4 (<= 23 ~a1~0)) (.cse7 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)))) (.cse8 (not (<= |old(~a19~0)| 8))) (.cse1 (and .cse2 .cse0 .cse5 .cse6))) (and (or (not (<= |old(~a19~0)| 6)) (and .cse0 (<= ~a19~0 6))) (or .cse1 (not (<= |old(~a10~0)| 2))) (or (not (< 1 |old(~a10~0)|)) (and .cse2 .cse0 (or .cse3 .cse4) .cse5 .cse6) (not (<= |old(~a19~0)| 9)) .cse7) (or .cse3 .cse8 .cse4 .cse7) (or (not (<= 4 |old(~a10~0)|)) .cse8 .cse1)))) [2020-07-20 14:10:47,739 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 14:10:47,739 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 14:10:47,739 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 14:10:47,739 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 14:10:47,740 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 14:10:47,741 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 14:10:47,742 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 14:10:47,743 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:10:47,744 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 14:10:47,745 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 14:10:47,746 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 14:10:47,746 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 14:10:47,746 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:10:47,746 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-20 14:10:47,746 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:10:47,746 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:10:47,746 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (<= 23 ~a1~0))) [2020-07-20 14:10:47,747 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:10:47,747 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-20 14:10:47,747 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 14:10:47,747 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 14:10:47,747 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-20 14:10:47,747 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:10:47,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:10:47 BoogieIcfgContainer [2020-07-20 14:10:47,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:10:47,783 INFO L168 Benchmark]: Toolchain (without parser) took 18922.24 ms. Allocated memory was 136.3 MB in the beginning and 504.4 MB in the end (delta: 368.1 MB). Free memory was 99.1 MB in the beginning and 260.1 MB in the end (delta: -161.0 MB). Peak memory consumption was 207.1 MB. Max. memory is 7.1 GB. [2020-07-20 14:10:47,784 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 14:10:47,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 892.03 ms. Allocated memory was 136.3 MB in the beginning and 203.4 MB in the end (delta: 67.1 MB). Free memory was 98.9 MB in the beginning and 169.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:10:47,787 INFO L168 Benchmark]: Boogie Preprocessor took 144.12 ms. Allocated memory is still 203.4 MB. Free memory was 169.9 MB in the beginning and 165.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:10:47,793 INFO L168 Benchmark]: RCFGBuilder took 1532.75 ms. Allocated memory was 203.4 MB in the beginning and 232.3 MB in the end (delta: 28.8 MB). Free memory was 165.4 MB in the beginning and 180.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:10:47,798 INFO L168 Benchmark]: TraceAbstraction took 16344.90 ms. Allocated memory was 232.3 MB in the beginning and 504.4 MB in the end (delta: 272.1 MB). Free memory was 180.6 MB in the beginning and 260.1 MB in the end (delta: -79.5 MB). Peak memory consumption was 192.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:10:47,806 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 892.03 ms. Allocated memory was 136.3 MB in the beginning and 203.4 MB in the end (delta: 67.1 MB). Free memory was 98.9 MB in the beginning and 169.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.12 ms. Allocated memory is still 203.4 MB. Free memory was 169.9 MB in the beginning and 165.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1532.75 ms. Allocated memory was 203.4 MB in the beginning and 232.3 MB in the end (delta: 28.8 MB). Free memory was 165.4 MB in the beginning and 180.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16344.90 ms. Allocated memory was 232.3 MB in the beginning and 504.4 MB in the end (delta: 272.1 MB). Free memory was 180.6 MB in the beginning and 260.1 MB in the end (delta: -79.5 MB). Peak memory consumption was 192.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 582]: Loop Invariant Derived loop invariant: (((((((!(23 <= \old(a1)) || (a19 <= 9 && (9 <= a19 || 23 <= a1))) || !(\old(a1) <= 23)) || a19 <= 6) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || a10 <= 2) || !(\old(a19) <= 9)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.9s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 424 SDtfs, 1913 SDslu, 210 SDs, 0 SdLazy, 5619 SolverSat, 1050 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2465 GetRequests, 2425 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1339occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 799 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 71 PreInvPairs, 123 NumberOfFragments, 271 HoareAnnotationTreeSize, 71 FomulaSimplifications, 12364 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3027 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1882 NumberOfCodeBlocks, 1882 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2440 ConstructedInterpolants, 0 QuantifiedInterpolants, 1449352 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3264 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1423/1431 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...