/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:00:41,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:00:41,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:00:41,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:00:41,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:00:41,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:00:41,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:00:41,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:00:41,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:00:41,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:00:41,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:00:41,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:00:41,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:00:41,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:00:41,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:00:41,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:00:41,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:00:41,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:00:41,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:00:41,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:00:41,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:00:41,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:00:41,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:00:41,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:00:41,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:00:41,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:00:41,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:00:41,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:00:41,687 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 22:00:41,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:00:41,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:00:41,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:00:41,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:00:41,727 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:00:41,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:00:41,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:00:41,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:00:41,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:00:41,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:00:41,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:00:41,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:00:41,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:00:41,728 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:00:41,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:00:41,729 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:00:41,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:00:41,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:00:41,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:00:41,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:00:41,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:00:41,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:00:41,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:00:41,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:00:41,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:00:41,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:00:41,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:41,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:00:41,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:00:41,732 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 -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:00:42,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:00:42,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:00:42,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:00:42,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:00:42,022 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:00:42,023 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-07-20 22:00:42,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea1d0f73/9a64d4edf55f401ab5b91fd1410ec895/FLAG47fad7332 [2020-07-20 22:00:42,690 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:00:42,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-07-20 22:00:42,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea1d0f73/9a64d4edf55f401ab5b91fd1410ec895/FLAG47fad7332 [2020-07-20 22:00:42,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea1d0f73/9a64d4edf55f401ab5b91fd1410ec895 [2020-07-20 22:00:42,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:00:42,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:00:42,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:00:42,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:00:42,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:00:42,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:00:42" (1/1) ... [2020-07-20 22:00:42,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de58b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:42, skipping insertion in model container [2020-07-20 22:00:42,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:00:42" (1/1) ... [2020-07-20 22:00:42,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:00:43,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:00:43,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:00:43,571 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:00:43,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:00:43,781 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:00:43,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43 WrapperNode [2020-07-20 22:00:43,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:00:43,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:00:43,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:00:43,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:00:43,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... [2020-07-20 22:00:43,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... [2020-07-20 22:00:43,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... [2020-07-20 22:00:43,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... [2020-07-20 22:00:43,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... [2020-07-20 22:00:43,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... [2020-07-20 22:00:43,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... [2020-07-20 22:00:43,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:00:43,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:00:43,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:00:43,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:00:43,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:00:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:00:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:00:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:00:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:00:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:00:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:00:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:00:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:00:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:00:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:00:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:00:45,190 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:00:45,190 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:00:45,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:00:45 BoogieIcfgContainer [2020-07-20 22:00:45,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:00:45,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:00:45,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:00:45,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:00:45,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:00:42" (1/3) ... [2020-07-20 22:00:45,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0138e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:00:45, skipping insertion in model container [2020-07-20 22:00:45,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:00:43" (2/3) ... [2020-07-20 22:00:45,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0138e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:00:45, skipping insertion in model container [2020-07-20 22:00:45,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:00:45" (3/3) ... [2020-07-20 22:00:45,212 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-07-20 22:00:45,225 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:00:45,237 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:00:45,253 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:00:45,292 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:00:45,293 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:00:45,294 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:00:45,294 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:00:45,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:00:45,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:00:45,295 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:00:45,295 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:00:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 22:00:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-20 22:00:45,351 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:45,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:45,354 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:45,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1414431897, now seen corresponding path program 1 times [2020-07-20 22:00:45,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:45,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772615662] [2020-07-20 22:00:45,373 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:45,647 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:45,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:45,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:00:45,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:45,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:45,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:45,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772615662] [2020-07-20 22:00:45,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:45,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:45,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295422978] [2020-07-20 22:00:45,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:45,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:45,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:45,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:45,802 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 22:00:46,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:46,718 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 22:00:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:46,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-20 22:00:46,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:46,760 INFO L225 Difference]: With dead ends: 572 [2020-07-20 22:00:46,760 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 22:00:46,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:46,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 22:00:46,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 22:00:46,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 22:00:46,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 22:00:46,901 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 109 [2020-07-20 22:00:46,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:46,902 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 22:00:46,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:46,903 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 22:00:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-20 22:00:46,907 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:46,907 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:47,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:47,123 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:47,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:47,124 INFO L82 PathProgramCache]: Analyzing trace with hash -609512656, now seen corresponding path program 1 times [2020-07-20 22:00:47,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:47,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119150647] [2020-07-20 22:00:47,126 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:47,237 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:47,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:47,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:47,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:47,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:47,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119150647] [2020-07-20 22:00:47,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:47,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:47,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997080991] [2020-07-20 22:00:47,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:47,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:47,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:47,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:47,317 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-20 22:00:47,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:47,910 INFO L93 Difference]: Finished difference Result 820 states and 1180 transitions. [2020-07-20 22:00:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:47,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-20 22:00:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:47,916 INFO L225 Difference]: With dead ends: 820 [2020-07-20 22:00:47,917 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 22:00:47,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 22:00:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-20 22:00:47,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-20 22:00:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 704 transitions. [2020-07-20 22:00:47,964 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 704 transitions. Word has length 119 [2020-07-20 22:00:47,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:47,965 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 704 transitions. [2020-07-20 22:00:47,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 704 transitions. [2020-07-20 22:00:47,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 22:00:47,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:47,972 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:48,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:48,174 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:48,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:48,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1642459725, now seen corresponding path program 1 times [2020-07-20 22:00:48,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:48,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298169491] [2020-07-20 22:00:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:48,335 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:48,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:48,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:48,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:48,413 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:48,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:00:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:48,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298169491] [2020-07-20 22:00:48,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:00:48,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:00:48,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265558406] [2020-07-20 22:00:48,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:00:48,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:48,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:00:48,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:00:48,538 INFO L87 Difference]: Start difference. First operand 548 states and 704 transitions. Second operand 7 states. [2020-07-20 22:00:50,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:50,227 INFO L93 Difference]: Finished difference Result 2107 states and 2907 transitions. [2020-07-20 22:00:50,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:00:50,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-07-20 22:00:50,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:50,245 INFO L225 Difference]: With dead ends: 2107 [2020-07-20 22:00:50,245 INFO L226 Difference]: Without dead ends: 1565 [2020-07-20 22:00:50,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:00:50,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2020-07-20 22:00:50,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1517. [2020-07-20 22:00:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1517 states. [2020-07-20 22:00:50,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 1946 transitions. [2020-07-20 22:00:50,324 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 1946 transitions. Word has length 139 [2020-07-20 22:00:50,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:50,324 INFO L479 AbstractCegarLoop]: Abstraction has 1517 states and 1946 transitions. [2020-07-20 22:00:50,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:00:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1946 transitions. [2020-07-20 22:00:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-20 22:00:50,331 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:50,331 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:50,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:50,541 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:50,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:50,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1494888479, now seen corresponding path program 1 times [2020-07-20 22:00:50,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:50,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117706223] [2020-07-20 22:00:50,543 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:50,659 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:50,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:50,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:50,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 22:00:50,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:50,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117706223] [2020-07-20 22:00:50,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:50,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:50,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780630089] [2020-07-20 22:00:50,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:50,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:50,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:50,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:50,770 INFO L87 Difference]: Start difference. First operand 1517 states and 1946 transitions. Second operand 3 states. [2020-07-20 22:00:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:51,431 INFO L93 Difference]: Finished difference Result 4118 states and 5396 transitions. [2020-07-20 22:00:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:51,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-20 22:00:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:51,448 INFO L225 Difference]: With dead ends: 4118 [2020-07-20 22:00:51,449 INFO L226 Difference]: Without dead ends: 2611 [2020-07-20 22:00:51,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-07-20 22:00:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2476. [2020-07-20 22:00:51,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2020-07-20 22:00:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3200 transitions. [2020-07-20 22:00:51,534 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3200 transitions. Word has length 144 [2020-07-20 22:00:51,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:51,535 INFO L479 AbstractCegarLoop]: Abstraction has 2476 states and 3200 transitions. [2020-07-20 22:00:51,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:51,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3200 transitions. [2020-07-20 22:00:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 22:00:51,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:51,545 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:51,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:51,759 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:51,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:51,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1481763744, now seen corresponding path program 1 times [2020-07-20 22:00:51,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:51,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956813779] [2020-07-20 22:00:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:51,872 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:51,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:51,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:51,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:51,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:51,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956813779] [2020-07-20 22:00:51,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:51,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:00:51,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540913400] [2020-07-20 22:00:51,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:00:51,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:51,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:00:51,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:51,960 INFO L87 Difference]: Start difference. First operand 2476 states and 3200 transitions. Second operand 3 states. [2020-07-20 22:00:52,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:52,516 INFO L93 Difference]: Finished difference Result 4408 states and 5628 transitions. [2020-07-20 22:00:52,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:00:52,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-20 22:00:52,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:52,532 INFO L225 Difference]: With dead ends: 4408 [2020-07-20 22:00:52,533 INFO L226 Difference]: Without dead ends: 2611 [2020-07-20 22:00:52,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:00:52,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-07-20 22:00:52,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2476. [2020-07-20 22:00:52,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2020-07-20 22:00:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3160 transitions. [2020-07-20 22:00:52,614 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3160 transitions. Word has length 143 [2020-07-20 22:00:52,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:52,615 INFO L479 AbstractCegarLoop]: Abstraction has 2476 states and 3160 transitions. [2020-07-20 22:00:52,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:00:52,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3160 transitions. [2020-07-20 22:00:52,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-20 22:00:52,624 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:52,624 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:52,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:52,838 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:52,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1995296009, now seen corresponding path program 1 times [2020-07-20 22:00:52,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:52,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190414231] [2020-07-20 22:00:52,841 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:52,971 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:52,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:52,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:52,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:53,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:00:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:00:53,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190414231] [2020-07-20 22:00:53,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:00:53,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:00:53,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865996573] [2020-07-20 22:00:53,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:00:53,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:53,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:00:53,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:00:53,149 INFO L87 Difference]: Start difference. First operand 2476 states and 3160 transitions. Second operand 7 states. [2020-07-20 22:00:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:54,740 INFO L93 Difference]: Finished difference Result 7125 states and 9466 transitions. [2020-07-20 22:00:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:00:54,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-07-20 22:00:54,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:54,768 INFO L225 Difference]: With dead ends: 7125 [2020-07-20 22:00:54,768 INFO L226 Difference]: Without dead ends: 4659 [2020-07-20 22:00:54,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 333 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:00:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2020-07-20 22:00:54,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 3882. [2020-07-20 22:00:54,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2020-07-20 22:00:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4887 transitions. [2020-07-20 22:00:54,910 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4887 transitions. Word has length 169 [2020-07-20 22:00:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:54,910 INFO L479 AbstractCegarLoop]: Abstraction has 3882 states and 4887 transitions. [2020-07-20 22:00:54,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:00:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4887 transitions. [2020-07-20 22:00:54,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-20 22:00:54,924 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:54,924 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 22:00:55,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:55,138 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:55,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:55,139 INFO L82 PathProgramCache]: Analyzing trace with hash 215626029, now seen corresponding path program 1 times [2020-07-20 22:00:55,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:55,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684311192] [2020-07-20 22:00:55,140 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:55,294 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:55,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:55,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:00:55,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-20 22:00:55,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:00:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-20 22:00:55,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684311192] [2020-07-20 22:00:55,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:00:55,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:00:55,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505640796] [2020-07-20 22:00:55,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:00:55,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:55,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:00:55,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:00:55,424 INFO L87 Difference]: Start difference. First operand 3882 states and 4887 transitions. Second operand 6 states. [2020-07-20 22:00:56,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:56,682 INFO L93 Difference]: Finished difference Result 10027 states and 13575 transitions. [2020-07-20 22:00:56,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:00:56,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2020-07-20 22:00:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:56,725 INFO L225 Difference]: With dead ends: 10027 [2020-07-20 22:00:56,725 INFO L226 Difference]: Without dead ends: 6155 [2020-07-20 22:00:56,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 374 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:00:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2020-07-20 22:00:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 5276. [2020-07-20 22:00:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5276 states. [2020-07-20 22:00:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 6674 transitions. [2020-07-20 22:00:56,933 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 6674 transitions. Word has length 189 [2020-07-20 22:00:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:56,933 INFO L479 AbstractCegarLoop]: Abstraction has 5276 states and 6674 transitions. [2020-07-20 22:00:56,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:00:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 6674 transitions. [2020-07-20 22:00:56,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-20 22:00:56,949 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:56,950 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:57,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:57,164 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:57,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:57,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1846651449, now seen corresponding path program 1 times [2020-07-20 22:00:57,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:57,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011404354] [2020-07-20 22:00:57,167 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:57,316 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:57,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:57,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:00:57,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-07-20 22:00:57,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:00:57,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011404354] [2020-07-20 22:00:57,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:00:57,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:00:57,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455090215] [2020-07-20 22:00:57,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:00:57,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:57,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:00:57,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:00:57,378 INFO L87 Difference]: Start difference. First operand 5276 states and 6674 transitions. Second operand 5 states. [2020-07-20 22:00:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:00:58,253 INFO L93 Difference]: Finished difference Result 10181 states and 12926 transitions. [2020-07-20 22:00:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:00:58,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 206 [2020-07-20 22:00:58,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:00:58,279 INFO L225 Difference]: With dead ends: 10181 [2020-07-20 22:00:58,280 INFO L226 Difference]: Without dead ends: 4915 [2020-07-20 22:00:58,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:00:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2020-07-20 22:00:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 4605. [2020-07-20 22:00:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4605 states. [2020-07-20 22:00:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 5736 transitions. [2020-07-20 22:00:58,422 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 5736 transitions. Word has length 206 [2020-07-20 22:00:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:00:58,423 INFO L479 AbstractCegarLoop]: Abstraction has 4605 states and 5736 transitions. [2020-07-20 22:00:58,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:00:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 5736 transitions. [2020-07-20 22:00:58,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-20 22:00:58,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:00:58,440 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:00:58,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:58,654 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:00:58,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:00:58,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1807537351, now seen corresponding path program 1 times [2020-07-20 22:00:58,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:00:58,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266410791] [2020-07-20 22:00:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:00:58,824 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:00:58,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:00:58,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:00:58,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:00:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-20 22:00:58,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:00:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 129 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-20 22:00:59,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266410791] [2020-07-20 22:00:59,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:00:59,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:00:59,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887513600] [2020-07-20 22:00:59,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:00:59,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:00:59,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:00:59,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:00:59,029 INFO L87 Difference]: Start difference. First operand 4605 states and 5736 transitions. Second operand 7 states. [2020-07-20 22:01:00,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:01:00,465 INFO L93 Difference]: Finished difference Result 7594 states and 9436 transitions. [2020-07-20 22:01:00,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:01:00,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-20 22:01:00,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:01:00,466 INFO L225 Difference]: With dead ends: 7594 [2020-07-20 22:01:00,466 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:01:00,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:01:00,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:01:00,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:01:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:01:00,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:01:00,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2020-07-20 22:01:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:01:00,484 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:01:00,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:01:00,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:01:00,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:01:00,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:01:00,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:01:01,585 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 103 [2020-07-20 22:01:01,922 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 103 [2020-07-20 22:01:02,679 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 56 [2020-07-20 22:01:03,086 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2020-07-20 22:01:03,485 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2020-07-20 22:01:03,489 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:01:03,490 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-20 22:01:03,490 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:01:03,490 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 22:01:03,491 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 22:01:03,491 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,491 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,491 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,491 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,491 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,491 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,492 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 22:01:03,492 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 22:01:03,492 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 22:01:03,492 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 22:01:03,492 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 22:01:03,492 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 22:01:03,492 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,493 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 22:01:03,494 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 22:01:03,495 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 22:01:03,495 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 22:01:03,495 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 22:01:03,495 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 485) no Hoare annotation was computed. [2020-07-20 22:01:03,495 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 22:01:03,495 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 22:01:03,495 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 22:01:03,496 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,497 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 22:01:03,498 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 22:01:03,499 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 22:01:03,500 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,501 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,502 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,502 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,502 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 22:01:03,502 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,502 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 22:01:03,502 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 22:01:03,502 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 22:01:03,503 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 22:01:03,504 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,505 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 22:01:03,506 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 22:01:03,507 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 22:01:03,507 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 22:01:03,507 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 22:01:03,507 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 22:01:03,507 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a20~0)| 0))) (.cse6 (<= ~a20~0 0)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse4 (= 1 ~a7~0)) (.cse7 (not (<= 5 |old(~a16~0)|))) (.cse2 (<= ~a8~0 |old(~a8~0)|)) (.cse3 (<= ~a16~0 |old(~a16~0)|)) (.cse5 (<= |old(~a16~0)| ~a16~0)) (.cse8 (not (<= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 (not (<= |old(~a16~0)| 4)) (and .cse2 .cse3 .cse4 .cse5 .cse6)) (or .cse0 (and .cse2 .cse4 (<= ~a16~0 5) (<= 5 ~a16~0) .cse6) (not (<= |old(~a16~0)| 5)) .cse1 .cse7) (or .cse8 .cse1 .cse6) (or .cse0 (and .cse2 .cse3 .cse4 .cse5) (and (not (<= |old(~a8~0)| 13)) (or (not (<= |old(~a8~0)| 14)) .cse7))) (or (not (<= 15 |old(~a8~0)|)) .cse8 (<= 15 ~a8~0)) (or (and .cse2 .cse3 (= ~a7~0 |old(~a7~0)|) .cse5) .cse8))) [2020-07-20 22:01:03,507 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 22:01:03,508 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 22:01:03,509 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,510 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 22:01:03,511 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,512 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 22:01:03,513 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 22:01:03,514 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 22:01:03,514 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 22:01:03,514 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 22:01:03,514 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 22:01:03,514 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:01:03,514 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 5 ~a16~0)) [2020-07-20 22:01:03,514 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:01:03,514 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:01:03,515 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a16~0 5) (<= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-20 22:01:03,515 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:01:03,515 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0))) (or (and .cse0 (<= ~a16~0 5) (<= ~a20~0 0)) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 13) .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 5 ~a16~0) (<= ~a8~0 14)))) [2020-07-20 22:01:03,515 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 22:01:03,515 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 22:01:03,515 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0))) (or (and .cse0 (<= ~a16~0 5) (<= ~a20~0 0)) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 13) .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 5 ~a16~0) (<= ~a8~0 14)))) [2020-07-20 22:01:03,515 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 22:01:03,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:01:03 BoogieIcfgContainer [2020-07-20 22:01:03,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:01:03,538 INFO L168 Benchmark]: Toolchain (without parser) took 20582.59 ms. Allocated memory was 138.9 MB in the beginning and 501.7 MB in the end (delta: 362.8 MB). Free memory was 101.7 MB in the beginning and 91.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 381.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:03,540 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 22:01:03,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.45 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.3 MB in the beginning and 171.2 MB in the end (delta: -69.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:03,541 INFO L168 Benchmark]: Boogie Preprocessor took 114.90 ms. Allocated memory is still 205.5 MB. Free memory was 171.2 MB in the beginning and 166.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:03,542 INFO L168 Benchmark]: RCFGBuilder took 1300.32 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 181.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:03,543 INFO L168 Benchmark]: TraceAbstraction took 18333.92 ms. Allocated memory was 239.6 MB in the beginning and 501.7 MB in the end (delta: 262.1 MB). Free memory was 181.0 MB in the beginning and 91.8 MB in the end (delta: 89.2 MB). Peak memory consumption was 360.3 MB. Max. memory is 7.1 GB. [2020-07-20 22:01:03,547 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 826.45 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.3 MB in the beginning and 171.2 MB in the end (delta: -69.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.90 ms. Allocated memory is still 205.5 MB. Free memory was 171.2 MB in the beginning and 166.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1300.32 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 181.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18333.92 ms. Allocated memory was 239.6 MB in the beginning and 501.7 MB in the end (delta: 262.1 MB). Free memory was 181.0 MB in the beginning and 91.8 MB in the end (delta: 89.2 MB). Peak memory consumption was 360.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 485]: 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: 583]: Loop Invariant Derived loop invariant: (((((((1 == a7 && a16 <= 5) && a20 <= 0) || a7 <= 0) || !(\old(a7) <= 0)) || !(\old(a16) <= 5)) || (a8 <= 13 && 1 == a7)) || !(5 <= \old(a16))) || ((1 == a7 && 5 <= a16) && a8 <= 14) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.4s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 693 SDtfs, 2730 SDslu, 315 SDs, 0 SdLazy, 6939 SolverSat, 1100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2139 GetRequests, 2097 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5276occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 2284 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 188 PreInvPairs, 272 NumberOfFragments, 273 HoareAnnotationTreeSize, 188 FomulaSimplifications, 56018 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8228 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1424 NumberOfCodeBlocks, 1424 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2114 ConstructedInterpolants, 0 QuantifiedInterpolants, 625398 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4122 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 1170/1210 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...