/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:51:11,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:51:11,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:51:11,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:51:11,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:51:11,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:51:11,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:51:11,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:51:11,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:51:11,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:51:11,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:51:11,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:51:11,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:51:11,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:51:11,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:51:11,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:51:11,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:51:11,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:51:11,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:51:11,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:51:11,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:51:11,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:51:11,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:51:11,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:51:11,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:51:11,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:51:11,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:51:11,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:51:11,495 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 [2020-07-21 13:51:11,531 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:51:11,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:51:11,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:51:11,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:51:11,533 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:51:11,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:51:11,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:51:11,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:51:11,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:51:11,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:51:11,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:51:11,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:51:11,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:51:11,534 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:51:11,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:51:11,535 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:51:11,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:51:11,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:51:11,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:51:11,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:51:11,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:51:11,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:51:11,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:51:11,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:51:11,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:51:11,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:51:11,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:11,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:51:11,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:51:11,538 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 -> 2 [2020-07-21 13:51:11,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:51:11,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:51:11,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:51:11,872 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:51:11,872 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:51:11,873 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 13:51:11,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a8c0b69/3486a2a1efcd419fa931adce0ba8bf8a/FLAG327a8a504 [2020-07-21 13:51:12,465 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:51:12,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 13:51:12,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a8c0b69/3486a2a1efcd419fa931adce0ba8bf8a/FLAG327a8a504 [2020-07-21 13:51:12,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a8c0b69/3486a2a1efcd419fa931adce0ba8bf8a [2020-07-21 13:51:12,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:51:12,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:51:12,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:51:12,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:51:12,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:51:12,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:12" (1/1) ... [2020-07-21 13:51:12,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb9b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:12, skipping insertion in model container [2020-07-21 13:51:12,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:12" (1/1) ... [2020-07-21 13:51:12,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:51:12,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:51:13,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:51:13,345 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:51:13,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:51:13,508 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:51:13,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13 WrapperNode [2020-07-21 13:51:13,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:51:13,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:51:13,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:51:13,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:51:13,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (1/1) ... [2020-07-21 13:51:13,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (1/1) ... [2020-07-21 13:51:13,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (1/1) ... [2020-07-21 13:51:13,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (1/1) ... [2020-07-21 13:51:13,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (1/1) ... [2020-07-21 13:51:13,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (1/1) ... [2020-07-21 13:51:13,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (1/1) ... [2020-07-21 13:51:13,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:51:13,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:51:13,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:51:13,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:51:13,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (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 [2020-07-21 13:51:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:51:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:51:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:51:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:51:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:51:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:51:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:51:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:51:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:51:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:51:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:51:15,001 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:51:15,001 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:51:15,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:51:15 BoogieIcfgContainer [2020-07-21 13:51:15,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:51:15,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:51:15,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:51:15,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:51:15,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:51:12" (1/3) ... [2020-07-21 13:51:15,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73033700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:51:15, skipping insertion in model container [2020-07-21 13:51:15,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:13" (2/3) ... [2020-07-21 13:51:15,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73033700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:51:15, skipping insertion in model container [2020-07-21 13:51:15,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:51:15" (3/3) ... [2020-07-21 13:51:15,026 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-21 13:51:15,038 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:51:15,055 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:51:15,071 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:51:15,110 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:51:15,110 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:51:15,110 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:51:15,110 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:51:15,111 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:51:15,111 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:51:15,111 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:51:15,111 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:51:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:51:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 13:51:15,157 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:15,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:15,159 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:15,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:15,166 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-21 13:51:15,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:15,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716685382] [2020-07-21 13:51:15,177 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:15,421 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:15,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:15,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:51:15,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:15,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:15,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716685382] [2020-07-21 13:51:15,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:15,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:15,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091300338] [2020-07-21 13:51:15,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:15,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:15,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:15,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:15,627 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:51:16,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:16,598 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 13:51:16,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:16,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-21 13:51:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:16,633 INFO L225 Difference]: With dead ends: 615 [2020-07-21 13:51:16,634 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 13:51:16,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:16,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 13:51:16,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 13:51:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 13:51:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 13:51:16,748 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-21 13:51:16,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:16,749 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 13:51:16,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:16,749 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 13:51:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 13:51:16,756 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:16,756 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:16,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:16,971 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:16,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:16,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-21 13:51:16,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:16,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913476697] [2020-07-21 13:51:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:17,084 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:17,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:17,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:51:17,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:17,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:17,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913476697] [2020-07-21 13:51:17,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:17,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:51:17,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140878937] [2020-07-21 13:51:17,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:51:17,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:17,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:51:17,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:51:17,171 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-21 13:51:17,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:17,636 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-21 13:51:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:51:17,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-07-21 13:51:17,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:17,642 INFO L225 Difference]: With dead ends: 629 [2020-07-21 13:51:17,643 INFO L226 Difference]: Without dead ends: 318 [2020-07-21 13:51:17,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-21 13:51:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-21 13:51:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-21 13:51:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-21 13:51:17,690 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 113 [2020-07-21 13:51:17,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:17,690 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-21 13:51:17,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:51:17,691 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-21 13:51:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 13:51:17,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:17,700 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 13:51:17,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:17,901 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:17,902 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-21 13:51:17,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:17,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775506018] [2020-07-21 13:51:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:17,999 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:17,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:18,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:51:18,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:18,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:18,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775506018] [2020-07-21 13:51:18,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:18,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:51:18,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854547534] [2020-07-21 13:51:18,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:51:18,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:18,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:51:18,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:51:18,067 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-21 13:51:18,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:18,919 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-21 13:51:18,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:51:18,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-07-21 13:51:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:18,924 INFO L225 Difference]: With dead ends: 923 [2020-07-21 13:51:18,925 INFO L226 Difference]: Without dead ends: 621 [2020-07-21 13:51:18,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:51:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-21 13:51:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 605. [2020-07-21 13:51:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-21 13:51:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 764 transitions. [2020-07-21 13:51:18,957 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 764 transitions. Word has length 120 [2020-07-21 13:51:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:18,958 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 764 transitions. [2020-07-21 13:51:18,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:51:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 764 transitions. [2020-07-21 13:51:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 13:51:18,962 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:18,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:19,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:19,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:19,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:19,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-21 13:51:19,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:19,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946276518] [2020-07-21 13:51:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:19,320 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:19,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:19,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:51:19,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:19,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:19,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946276518] [2020-07-21 13:51:19,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:19,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:51:19,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278200883] [2020-07-21 13:51:19,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:51:19,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:19,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:51:19,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:51:19,375 INFO L87 Difference]: Start difference. First operand 605 states and 764 transitions. Second operand 5 states. [2020-07-21 13:51:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:20,169 INFO L93 Difference]: Finished difference Result 1682 states and 2209 transitions. [2020-07-21 13:51:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:51:20,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-21 13:51:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:20,175 INFO L225 Difference]: With dead ends: 1682 [2020-07-21 13:51:20,176 INFO L226 Difference]: Without dead ends: 1083 [2020-07-21 13:51:20,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:51:20,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-07-21 13:51:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1067. [2020-07-21 13:51:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-07-21 13:51:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1323 transitions. [2020-07-21 13:51:20,220 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1323 transitions. Word has length 124 [2020-07-21 13:51:20,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:20,221 INFO L479 AbstractCegarLoop]: Abstraction has 1067 states and 1323 transitions. [2020-07-21 13:51:20,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:51:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1323 transitions. [2020-07-21 13:51:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 13:51:20,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:20,225 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:20,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:20,440 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:20,441 INFO L82 PathProgramCache]: Analyzing trace with hash 741492135, now seen corresponding path program 1 times [2020-07-21 13:51:20,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:20,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125466540] [2020-07-21 13:51:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:20,552 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:20,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:20,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:20,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:20,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:20,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125466540] [2020-07-21 13:51:20,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:20,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:51:20,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502240423] [2020-07-21 13:51:20,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:51:20,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:20,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:51:20,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:20,671 INFO L87 Difference]: Start difference. First operand 1067 states and 1323 transitions. Second operand 6 states. [2020-07-21 13:51:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:21,491 INFO L93 Difference]: Finished difference Result 2290 states and 2871 transitions. [2020-07-21 13:51:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:51:21,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 13:51:21,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:21,502 INFO L225 Difference]: With dead ends: 2290 [2020-07-21 13:51:21,502 INFO L226 Difference]: Without dead ends: 1229 [2020-07-21 13:51:21,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:51:21,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-07-21 13:51:21,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1223. [2020-07-21 13:51:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-21 13:51:21,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1481 transitions. [2020-07-21 13:51:21,559 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1481 transitions. Word has length 129 [2020-07-21 13:51:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:21,560 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1481 transitions. [2020-07-21 13:51:21,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:51:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1481 transitions. [2020-07-21 13:51:21,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 13:51:21,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:21,568 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:51:21,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:21,783 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:21,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:21,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1004016671, now seen corresponding path program 1 times [2020-07-21 13:51:21,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:21,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887040602] [2020-07-21 13:51:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:21,895 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:21,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:21,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:21,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:51:21,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:21,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887040602] [2020-07-21 13:51:21,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:21,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:21,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940763643] [2020-07-21 13:51:21,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:21,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:21,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:21,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:21,940 INFO L87 Difference]: Start difference. First operand 1223 states and 1481 transitions. Second operand 3 states. [2020-07-21 13:51:22,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:22,481 INFO L93 Difference]: Finished difference Result 2884 states and 3595 transitions. [2020-07-21 13:51:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:22,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 13:51:22,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:22,494 INFO L225 Difference]: With dead ends: 2884 [2020-07-21 13:51:22,494 INFO L226 Difference]: Without dead ends: 1367 [2020-07-21 13:51:22,507 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 [2020-07-21 13:51:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-07-21 13:51:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1221. [2020-07-21 13:51:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1221 states. [2020-07-21 13:51:22,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1384 transitions. [2020-07-21 13:51:22,571 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1384 transitions. Word has length 133 [2020-07-21 13:51:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:22,574 INFO L479 AbstractCegarLoop]: Abstraction has 1221 states and 1384 transitions. [2020-07-21 13:51:22,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1384 transitions. [2020-07-21 13:51:22,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 13:51:22,579 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:22,579 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:51:22,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:22,795 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:22,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-21 13:51:22,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:22,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345137193] [2020-07-21 13:51:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:22,941 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:22,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:22,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:51:22,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:22,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:51:23,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345137193] [2020-07-21 13:51:23,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:23,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:51:23,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001134713] [2020-07-21 13:51:23,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:51:23,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:23,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:51:23,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:23,057 INFO L87 Difference]: Start difference. First operand 1221 states and 1384 transitions. Second operand 6 states. [2020-07-21 13:51:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:24,111 INFO L93 Difference]: Finished difference Result 3338 states and 3778 transitions. [2020-07-21 13:51:24,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:51:24,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 13:51:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:24,123 INFO L225 Difference]: With dead ends: 3338 [2020-07-21 13:51:24,123 INFO L226 Difference]: Without dead ends: 1969 [2020-07-21 13:51:24,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:51:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-07-21 13:51:24,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1966. [2020-07-21 13:51:24,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-07-21 13:51:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2159 transitions. [2020-07-21 13:51:24,175 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2159 transitions. Word has length 146 [2020-07-21 13:51:24,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:24,176 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 2159 transitions. [2020-07-21 13:51:24,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:51:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2159 transitions. [2020-07-21 13:51:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 13:51:24,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:24,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-21 13:51:24,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:24,396 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:24,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:24,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-21 13:51:24,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:24,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927301550] [2020-07-21 13:51:24,397 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:24,516 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:24,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:24,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:24,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:51:24,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:51:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:51:24,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927301550] [2020-07-21 13:51:24,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:51:24,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:51:24,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492615488] [2020-07-21 13:51:24,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:51:24,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:24,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:51:24,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:24,653 INFO L87 Difference]: Start difference. First operand 1966 states and 2159 transitions. Second operand 6 states. [2020-07-21 13:51:25,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:25,475 INFO L93 Difference]: Finished difference Result 3485 states and 3836 transitions. [2020-07-21 13:51:25,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:51:25,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 13:51:25,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:25,487 INFO L225 Difference]: With dead ends: 3485 [2020-07-21 13:51:25,488 INFO L226 Difference]: Without dead ends: 1824 [2020-07-21 13:51:25,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:51:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2020-07-21 13:51:25,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1670. [2020-07-21 13:51:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-07-21 13:51:25,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 1811 transitions. [2020-07-21 13:51:25,569 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 1811 transitions. Word has length 182 [2020-07-21 13:51:25,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:25,570 INFO L479 AbstractCegarLoop]: Abstraction has 1670 states and 1811 transitions. [2020-07-21 13:51:25,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:51:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 1811 transitions. [2020-07-21 13:51:25,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 13:51:25,575 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:25,576 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:51:25,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:25,790 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:25,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-21 13:51:25,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:25,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263236847] [2020-07-21 13:51:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 13:51:25,997 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:25,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:26,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 13:51:26,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 13:51:26,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:26,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263236847] [2020-07-21 13:51:26,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:26,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:51:26,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235689799] [2020-07-21 13:51:26,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:51:26,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:26,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:51:26,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:51:26,106 INFO L87 Difference]: Start difference. First operand 1670 states and 1811 transitions. Second operand 5 states. [2020-07-21 13:51:26,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:26,899 INFO L93 Difference]: Finished difference Result 3945 states and 4311 transitions. [2020-07-21 13:51:26,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:51:26,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-07-21 13:51:26,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:26,912 INFO L225 Difference]: With dead ends: 3945 [2020-07-21 13:51:26,912 INFO L226 Difference]: Without dead ends: 2725 [2020-07-21 13:51:26,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:51:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2020-07-21 13:51:26,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2581. [2020-07-21 13:51:26,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2581 states. [2020-07-21 13:51:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 2832 transitions. [2020-07-21 13:51:26,984 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 2832 transitions. Word has length 204 [2020-07-21 13:51:26,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:26,985 INFO L479 AbstractCegarLoop]: Abstraction has 2581 states and 2832 transitions. [2020-07-21 13:51:26,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:51:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 2832 transitions. [2020-07-21 13:51:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-21 13:51:26,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:26,993 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:51:27,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:27,206 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:27,207 INFO L82 PathProgramCache]: Analyzing trace with hash 772945334, now seen corresponding path program 1 times [2020-07-21 13:51:27,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:27,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911183777] [2020-07-21 13:51:27,208 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:27,336 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:27,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:27,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:51:27,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 13:51:27,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:27,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911183777] [2020-07-21 13:51:27,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:27,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:27,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487508775] [2020-07-21 13:51:27,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:27,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:27,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:27,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:27,387 INFO L87 Difference]: Start difference. First operand 2581 states and 2832 transitions. Second operand 3 states. [2020-07-21 13:51:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:27,892 INFO L93 Difference]: Finished difference Result 5740 states and 6391 transitions. [2020-07-21 13:51:27,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:27,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-21 13:51:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:27,906 INFO L225 Difference]: With dead ends: 5740 [2020-07-21 13:51:27,906 INFO L226 Difference]: Without dead ends: 3157 [2020-07-21 13:51:27,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2020-07-21 13:51:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 3153. [2020-07-21 13:51:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3153 states. [2020-07-21 13:51:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 3440 transitions. [2020-07-21 13:51:27,976 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 3440 transitions. Word has length 204 [2020-07-21 13:51:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:27,976 INFO L479 AbstractCegarLoop]: Abstraction has 3153 states and 3440 transitions. [2020-07-21 13:51:27,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 3440 transitions. [2020-07-21 13:51:27,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 13:51:27,984 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:27,984 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:51:28,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:28,198 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:28,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:28,199 INFO L82 PathProgramCache]: Analyzing trace with hash 511642924, now seen corresponding path program 1 times [2020-07-21 13:51:28,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:28,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453484903] [2020-07-21 13:51:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:28,337 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:28,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:28,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 13:51:28,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-07-21 13:51:28,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:28,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453484903] [2020-07-21 13:51:28,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:28,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:28,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004467798] [2020-07-21 13:51:28,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:28,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:28,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:28,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:28,381 INFO L87 Difference]: Start difference. First operand 3153 states and 3440 transitions. Second operand 3 states. [2020-07-21 13:51:28,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:28,894 INFO L93 Difference]: Finished difference Result 5087 states and 5536 transitions. [2020-07-21 13:51:28,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:28,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-21 13:51:28,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:28,912 INFO L225 Difference]: With dead ends: 5087 [2020-07-21 13:51:28,912 INFO L226 Difference]: Without dead ends: 3124 [2020-07-21 13:51:28,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:28,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-21 13:51:28,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2836. [2020-07-21 13:51:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2836 states. [2020-07-21 13:51:29,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 3063 transitions. [2020-07-21 13:51:29,000 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 3063 transitions. Word has length 229 [2020-07-21 13:51:29,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:29,000 INFO L479 AbstractCegarLoop]: Abstraction has 2836 states and 3063 transitions. [2020-07-21 13:51:29,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:29,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 3063 transitions. [2020-07-21 13:51:29,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 13:51:29,011 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:51:29,012 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:51:29,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:29,227 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:51:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:51:29,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-21 13:51:29,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:51:29,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109076944] [2020-07-21 13:51:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:29,413 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:51:29,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:51:29,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:51:29,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:51:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-21 13:51:29,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:51:29,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109076944] [2020-07-21 13:51:29,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:51:29,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:51:29,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263286905] [2020-07-21 13:51:29,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:51:29,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:51:29,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:51:29,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:29,505 INFO L87 Difference]: Start difference. First operand 2836 states and 3063 transitions. Second operand 3 states. [2020-07-21 13:51:29,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:51:29,919 INFO L93 Difference]: Finished difference Result 3420 states and 3666 transitions. [2020-07-21 13:51:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:51:29,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-21 13:51:29,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:51:29,921 INFO L225 Difference]: With dead ends: 3420 [2020-07-21 13:51:29,921 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:51:29,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:51:29,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:51:29,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:51:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:51:29,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:51:29,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-21 13:51:29,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:51:29,929 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:51:29,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:51:29,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:51:29,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:51:30,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:30,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:51:31,681 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2020-07-21 13:51:32,153 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-07-21 13:51:32,625 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-07-21 13:51:32,629 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:51:32,630 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a11~0 |old(~a11~0)|) (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 13:51:32,630 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:51:32,630 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,630 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,630 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,631 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,631 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,631 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:51:32,631 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:51:32,631 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:51:32,631 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:51:32,632 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,633 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:51:32,634 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,635 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:51:32,636 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,637 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:51:32,638 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,639 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:51:32,640 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:51:32,641 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:51:32,642 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:51:32,643 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:51:32,644 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,645 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse23 (= 1 |old(~a11~0)|))) (let ((.cse17 (not .cse23)) (.cse3 (not (<= |old(~a17~0)| 7))) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a25~0 |old(~a25~0)|)) (.cse21 (<= ~a28~0 10)) (.cse4 (<= ~a11~0 |old(~a11~0)|)) (.cse10 (= 1 ~a11~0)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse1 (not (<= 9 |old(~a28~0)|))) (.cse8 (<= 9 ~a28~0)) (.cse20 (not (<= |old(~a11~0)| 0))) (.cse19 (not (<= 10 |old(~a28~0)|))) (.cse22 (<= 10 ~a28~0)) (.cse18 (not (= 1 |old(~a19~0)|))) (.cse6 (<= ~a28~0 |old(~a28~0)|)) (.cse11 (<= ~a17~0 8)) (.cse12 (<= 8 ~a17~0)) (.cse7 (= ~a19~0 |old(~a19~0)|)) (.cse9 (= 1 ~a25~0)) (.cse14 (not (<= |old(~a28~0)| 7))) (.cse15 (not (<= 8 |old(~a17~0)|))) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse16 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9)) (or (and .cse6 .cse10 .cse11 .cse12 .cse7 .cse13) .cse14 .cse15 .cse16 .cse17) (or .cse18 .cse0 .cse1 (and .cse6 .cse10 .cse11 .cse12 .cse7 .cse8 .cse13) .cse15 .cse16 .cse17) (or .cse18 .cse0 .cse12 .cse15 .cse19 .cse16) (or .cse0 .cse2 .cse3 (and .cse5 .cse10 .cse6 .cse7 .cse9) .cse17) (or .cse0 .cse15 (and .cse4 .cse6 .cse11 .cse12 .cse7 .cse13) .cse16 .cse20) (or .cse0 .cse3 .cse19 (and .cse5 .cse21 .cse22 .cse7 .cse13) .cse16) (or .cse18 .cse0 (and .cse11 .cse21 .cse22 .cse7) .cse19 .cse16) (or .cse0 .cse2 .cse19 .cse22 .cse16 .cse20) (or .cse18 .cse1 .cse23 .cse15 .cse2 (and .cse4 .cse6 .cse11 .cse12 (not .cse10) .cse7 .cse8 .cse9) .cse16) (or .cse0 .cse1 .cse15 .cse16 .cse8 .cse20) (or .cse18 .cse23 .cse15 .cse2 .cse19 .cse22 .cse16) (or .cse18 (and .cse6 .cse11 .cse12 .cse7 .cse9) .cse14 .cse15 .cse2 .cse16)))) [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:51:32,646 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:51:32,647 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:51:32,648 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,649 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:51:32,650 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:51:32,651 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:51:32,652 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:51:32,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:51:32,652 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 13:51:32,652 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:51:32,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:51:32,652 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:51:32,652 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse8 (<= 10 ~a28~0)) (.cse0 (<= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 7)) (.cse1 (= 1 ~a19~0)) (.cse2 (<= ~a17~0 8)) (.cse3 (<= 8 ~a17~0)) (.cse10 (<= 9 ~a28~0)) (.cse9 (= 1 ~a11~0)) (.cse6 (<= ~a28~0 10)) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse7 (<= ~a17~0 7)) (.cse11 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse6 .cse7 .cse8) (not (<= 8 |old(~a17~0)|)) (and .cse1 .cse9 .cse2 .cse3 .cse6 .cse5 .cse10) (and .cse1 .cse2 .cse6 .cse8) (and .cse9 .cse2 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse6 .cse5 .cse7 .cse10 .cse11) (and .cse1 .cse2 .cse3 .cse5 .cse4 .cse11) (and .cse1 .cse2 .cse3 .cse5 (not .cse9) .cse10 .cse11) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse6 .cse5 .cse7 .cse11))) [2020-07-21 13:51:32,652 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:51:32,652 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:51:32,653 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse8 (<= 10 ~a28~0)) (.cse0 (<= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 7)) (.cse1 (= 1 ~a19~0)) (.cse2 (<= ~a17~0 8)) (.cse3 (<= 8 ~a17~0)) (.cse10 (<= 9 ~a28~0)) (.cse9 (= 1 ~a11~0)) (.cse6 (<= ~a28~0 10)) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse7 (<= ~a17~0 7)) (.cse11 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse6 .cse7 .cse8) (not (<= 8 |old(~a17~0)|)) (and .cse1 .cse9 .cse2 .cse3 .cse6 .cse5 .cse10) (and .cse1 .cse2 .cse6 .cse8) (and .cse9 .cse2 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse6 .cse5 .cse7 .cse10 .cse11) (and .cse1 .cse2 .cse3 .cse5 .cse4 .cse11) (and .cse1 .cse2 .cse3 .cse5 (not .cse9) .cse10 .cse11) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse6 .cse5 .cse7 .cse11))) [2020-07-21 13:51:32,653 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:51:32,653 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:51:32,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:51:32 BoogieIcfgContainer [2020-07-21 13:51:32,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:51:32,683 INFO L168 Benchmark]: Toolchain (without parser) took 19890.25 ms. Allocated memory was 143.7 MB in the beginning and 478.7 MB in the end (delta: 335.0 MB). Free memory was 102.6 MB in the beginning and 208.9 MB in the end (delta: -106.3 MB). Peak memory consumption was 316.6 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:32,683 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 143.7 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 13:51:32,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.79 ms. Allocated memory was 143.7 MB in the beginning and 206.0 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 172.5 MB in the end (delta: -70.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:32,685 INFO L168 Benchmark]: Boogie Preprocessor took 104.41 ms. Allocated memory is still 206.0 MB. Free memory was 172.5 MB in the beginning and 167.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:32,685 INFO L168 Benchmark]: RCFGBuilder took 1399.41 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.7 MB in the beginning and 179.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:32,686 INFO L168 Benchmark]: TraceAbstraction took 17665.55 ms. Allocated memory was 237.0 MB in the beginning and 478.7 MB in the end (delta: 241.7 MB). Free memory was 178.1 MB in the beginning and 208.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 298.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:51:32,689 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 143.7 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.79 ms. Allocated memory was 143.7 MB in the beginning and 206.0 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 172.5 MB in the end (delta: -70.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.41 ms. Allocated memory is still 206.0 MB. Free memory was 172.5 MB in the beginning and 167.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1399.41 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.7 MB in the beginning and 179.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17665.55 ms. Allocated memory was 237.0 MB in the beginning and 478.7 MB in the end (delta: 241.7 MB). Free memory was 178.1 MB in the beginning and 208.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 298.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || (((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 7) && a25 == \old(a25))) || !(\old(a28) <= 7)) || (((!(1 == \old(a25)) && a28 <= 10) && a17 <= 7) && 10 <= a28)) || !(8 <= \old(a17))) || ((((((1 == a19 && 1 == a11) && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && 9 <= a28)) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || ((((1 == a11 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7)) || ((((a11 <= \old(a11) && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25)))) || !(\old(a11) <= 0)) || ((((a28 <= 10 && !(1 == \old(a25))) && a17 <= 7) && 9 <= a28) && 1 == a25)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || ((((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && !(1 == a11)) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8)) || ((((1 == a11 && a28 <= 10) && !(1 == \old(a25))) && a17 <= 7) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.0s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 982 SDtfs, 3877 SDslu, 473 SDs, 0 SdLazy, 6250 SolverSat, 862 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2391 GetRequests, 2341 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3153occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 787 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 113 PreInvPairs, 157 NumberOfFragments, 915 HoareAnnotationTreeSize, 113 FomulaSimplifications, 3529 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1644 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1922 NumberOfCodeBlocks, 1922 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2364 ConstructedInterpolants, 0 QuantifiedInterpolants, 712653 SizeOfPredicates, 13 NumberOfNonLiveVariables, 5032 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 1360/1372 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...