/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:07:00,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:07:00,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:07:00,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:07:00,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:07:00,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:07:00,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:07:00,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:07:00,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:07:00,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:07:00,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:07:00,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:07:00,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:07:00,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:07:00,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:07:00,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:07:00,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:07:00,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:07:00,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:07:00,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:07:00,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:07:00,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:07:00,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:07:00,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:07:00,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:07:00,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:07:00,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:07:00,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:07:00,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:07:00,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:07:00,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:07:00,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:07:00,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:07:00,608 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:07:00,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:07:00,608 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:07:00,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:07:00,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:07:00,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:07:00,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:07:00,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:07:00,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:07:00,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:07:00,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:07:00,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:07:00,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:07:00,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:07:00,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:07:00,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:07:00,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:07:00,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:07:00,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:07:00,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:07:00,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:07:00,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:07:00,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:00,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:07:00,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:07:00,615 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 -> 2 [2020-07-21 20:07:00,909 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:07:00,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:07:00,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:07:00,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:07:00,929 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:07:00,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label31.c [2020-07-21 20:07:00,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749271bd6/4e1217eb1db44bd29e313a253d1a8e3a/FLAG41a8b35e5 [2020-07-21 20:07:01,620 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:07:01,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label31.c [2020-07-21 20:07:01,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749271bd6/4e1217eb1db44bd29e313a253d1a8e3a/FLAG41a8b35e5 [2020-07-21 20:07:01,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749271bd6/4e1217eb1db44bd29e313a253d1a8e3a [2020-07-21 20:07:01,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:07:01,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:07:01,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:07:01,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:07:01,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:07:01,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:07:01" (1/1) ... [2020-07-21 20:07:01,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d5d596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:01, skipping insertion in model container [2020-07-21 20:07:01,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:07:01" (1/1) ... [2020-07-21 20:07:01,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:07:01,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:07:02,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:07:02,485 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:07:02,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:07:02,629 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:07:02,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02 WrapperNode [2020-07-21 20:07:02,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:07:02,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:07:02,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:07:02,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:07:02,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... [2020-07-21 20:07:02,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... [2020-07-21 20:07:02,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... [2020-07-21 20:07:02,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... [2020-07-21 20:07:02,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... [2020-07-21 20:07:02,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... [2020-07-21 20:07:02,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... [2020-07-21 20:07:02,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:07:02,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:07:02,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:07:02,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:07:02,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:07:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:07:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:07:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:07:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:07:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:07:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:07:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:07:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:07:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:07:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:07:02,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:07:04,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:07:04,040 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:07:04,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:07:04 BoogieIcfgContainer [2020-07-21 20:07:04,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:07:04,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:07:04,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:07:04,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:07:04,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:07:01" (1/3) ... [2020-07-21 20:07:04,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dab1d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:07:04, skipping insertion in model container [2020-07-21 20:07:04,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:07:02" (2/3) ... [2020-07-21 20:07:04,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dab1d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:07:04, skipping insertion in model container [2020-07-21 20:07:04,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:07:04" (3/3) ... [2020-07-21 20:07:04,055 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2020-07-21 20:07:04,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:07:04,076 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:07:04,091 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:07:04,119 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:07:04,119 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:07:04,120 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:07:04,120 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:07:04,120 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:07:04,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:07:04,121 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:07:04,121 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:07:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 20:07:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 20:07:04,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:04,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:04,163 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:04,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1379021910, now seen corresponding path program 1 times [2020-07-21 20:07:04,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:04,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783027245] [2020-07-21 20:07:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:04,363 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:04,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:04,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:07:04,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:07:04,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:07:04,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783027245] [2020-07-21 20:07:04,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:07:04,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:07:04,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901737085] [2020-07-21 20:07:04,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:07:04,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:04,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:07:04,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:04,543 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 20:07:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:05,592 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 20:07:05,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:07:05,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-21 20:07:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:05,634 INFO L225 Difference]: With dead ends: 572 [2020-07-21 20:07:05,635 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 20:07:05,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 20:07:05,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 20:07:05,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 20:07:05,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 20:07:05,724 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 98 [2020-07-21 20:07:05,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:05,725 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 20:07:05,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:07:05,725 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 20:07:05,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-21 20:07:05,732 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:05,732 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] [2020-07-21 20:07:05,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:05,942 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:05,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1132011565, now seen corresponding path program 1 times [2020-07-21 20:07:05,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:05,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933918027] [2020-07-21 20:07:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:06,051 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:06,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:06,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:07:06,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:07:06,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:07:06,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933918027] [2020-07-21 20:07:06,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:07:06,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:07:06,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937541870] [2020-07-21 20:07:06,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:07:06,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:06,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:07:06,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:06,111 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-21 20:07:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:06,693 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-21 20:07:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:07:06,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-07-21 20:07:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:06,701 INFO L225 Difference]: With dead ends: 820 [2020-07-21 20:07:06,701 INFO L226 Difference]: Without dead ends: 548 [2020-07-21 20:07:06,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-21 20:07:06,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-21 20:07:06,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-21 20:07:06,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-21 20:07:06,767 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 108 [2020-07-21 20:07:06,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:06,768 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-21 20:07:06,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:07:06,768 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-21 20:07:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 20:07:06,779 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:06,779 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:06,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:06,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:06,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:06,984 INFO L82 PathProgramCache]: Analyzing trace with hash -754931097, now seen corresponding path program 1 times [2020-07-21 20:07:06,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:06,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315199710] [2020-07-21 20:07:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:07,089 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:07,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:07,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:07:07,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:07:07,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:07:07,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315199710] [2020-07-21 20:07:07,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:07:07,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:07:07,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720813649] [2020-07-21 20:07:07,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:07:07,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:07,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:07:07,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:07,162 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-21 20:07:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:07,766 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-21 20:07:07,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:07:07,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-21 20:07:07,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:07,776 INFO L225 Difference]: With dead ends: 1360 [2020-07-21 20:07:07,777 INFO L226 Difference]: Without dead ends: 818 [2020-07-21 20:07:07,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:07,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-21 20:07:07,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-21 20:07:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-21 20:07:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-21 20:07:07,816 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 113 [2020-07-21 20:07:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:07,816 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-21 20:07:07,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:07:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-21 20:07:07,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 20:07:07,820 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:07,820 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:08,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:08,036 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:08,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:08,036 INFO L82 PathProgramCache]: Analyzing trace with hash 423904568, now seen corresponding path program 1 times [2020-07-21 20:07:08,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:08,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495533312] [2020-07-21 20:07:08,038 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:08,142 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:08,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:08,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:07:08,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:08,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:07:08,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:07:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:07:08,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495533312] [2020-07-21 20:07:08,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:07:08,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 20:07:08,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7651992] [2020-07-21 20:07:08,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:07:08,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:08,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:07:08,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:07:08,311 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-21 20:07:10,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:10,298 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-21 20:07:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:07:10,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-07-21 20:07:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:10,324 INFO L225 Difference]: With dead ends: 3084 [2020-07-21 20:07:10,324 INFO L226 Difference]: Without dead ends: 2272 [2020-07-21 20:07:10,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:07:10,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-21 20:07:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-21 20:07:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-21 20:07:10,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2572 transitions. [2020-07-21 20:07:10,461 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2572 transitions. Word has length 124 [2020-07-21 20:07:10,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:10,462 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2572 transitions. [2020-07-21 20:07:10,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:07:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2572 transitions. [2020-07-21 20:07:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 20:07:10,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:10,470 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:10,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:10,688 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:10,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:10,689 INFO L82 PathProgramCache]: Analyzing trace with hash -899073430, now seen corresponding path program 1 times [2020-07-21 20:07:10,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:10,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606469566] [2020-07-21 20:07:10,690 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:10,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:10,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:10,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:07:10,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:10,875 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:07:10,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:07:10,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606469566] [2020-07-21 20:07:10,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:07:10,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:07:10,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776567470] [2020-07-21 20:07:10,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:07:10,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:10,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:07:10,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:10,881 INFO L87 Difference]: Start difference. First operand 2065 states and 2572 transitions. Second operand 3 states. [2020-07-21 20:07:11,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:11,603 INFO L93 Difference]: Finished difference Result 5617 states and 7126 transitions. [2020-07-21 20:07:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:07:11,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 20:07:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:11,625 INFO L225 Difference]: With dead ends: 5617 [2020-07-21 20:07:11,625 INFO L226 Difference]: Without dead ends: 3562 [2020-07-21 20:07:11,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2020-07-21 20:07:11,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2752. [2020-07-21 20:07:11,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2020-07-21 20:07:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3489 transitions. [2020-07-21 20:07:11,723 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3489 transitions. Word has length 133 [2020-07-21 20:07:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:11,723 INFO L479 AbstractCegarLoop]: Abstraction has 2752 states and 3489 transitions. [2020-07-21 20:07:11,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:07:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3489 transitions. [2020-07-21 20:07:11,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 20:07:11,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:11,734 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:11,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:11,948 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:11,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:11,949 INFO L82 PathProgramCache]: Analyzing trace with hash -753316057, now seen corresponding path program 1 times [2020-07-21 20:07:11,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:11,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208980828] [2020-07-21 20:07:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:12,088 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:12,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:12,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:07:12,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 20:07:12,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:07:12,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208980828] [2020-07-21 20:07:12,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:07:12,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:07:12,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939840663] [2020-07-21 20:07:12,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:07:12,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:12,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:07:12,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:12,141 INFO L87 Difference]: Start difference. First operand 2752 states and 3489 transitions. Second operand 3 states. [2020-07-21 20:07:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:12,793 INFO L93 Difference]: Finished difference Result 6578 states and 8490 transitions. [2020-07-21 20:07:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:07:12,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-07-21 20:07:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:12,816 INFO L225 Difference]: With dead ends: 6578 [2020-07-21 20:07:12,817 INFO L226 Difference]: Without dead ends: 3836 [2020-07-21 20:07:12,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:07:12,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2020-07-21 20:07:12,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3159. [2020-07-21 20:07:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-07-21 20:07:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4093 transitions. [2020-07-21 20:07:12,921 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4093 transitions. Word has length 149 [2020-07-21 20:07:12,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:12,921 INFO L479 AbstractCegarLoop]: Abstraction has 3159 states and 4093 transitions. [2020-07-21 20:07:12,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:07:12,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4093 transitions. [2020-07-21 20:07:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 20:07:12,932 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:12,932 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:13,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:13,146 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:13,147 INFO L82 PathProgramCache]: Analyzing trace with hash 269767272, now seen corresponding path program 1 times [2020-07-21 20:07:13,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:13,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573335132] [2020-07-21 20:07:13,149 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:13,284 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:13,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:13,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:07:13,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 20:07:13,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:07:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 107 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 20:07:13,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573335132] [2020-07-21 20:07:13,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:07:13,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:07:13,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812317095] [2020-07-21 20:07:13,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:07:13,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:13,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:07:13,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:07:13,415 INFO L87 Difference]: Start difference. First operand 3159 states and 4093 transitions. Second operand 6 states. [2020-07-21 20:07:14,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:14,326 INFO L93 Difference]: Finished difference Result 6890 states and 8926 transitions. [2020-07-21 20:07:14,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:07:14,328 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-21 20:07:14,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:14,349 INFO L225 Difference]: With dead ends: 6890 [2020-07-21 20:07:14,350 INFO L226 Difference]: Without dead ends: 3741 [2020-07-21 20:07:14,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 350 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:07:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2020-07-21 20:07:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3052. [2020-07-21 20:07:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2020-07-21 20:07:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 3857 transitions. [2020-07-21 20:07:14,450 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 3857 transitions. Word has length 177 [2020-07-21 20:07:14,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:14,451 INFO L479 AbstractCegarLoop]: Abstraction has 3052 states and 3857 transitions. [2020-07-21 20:07:14,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:07:14,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 3857 transitions. [2020-07-21 20:07:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-21 20:07:14,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:14,461 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:14,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:14,675 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:14,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:14,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1715843109, now seen corresponding path program 1 times [2020-07-21 20:07:14,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:14,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883341525] [2020-07-21 20:07:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:14,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:14,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:14,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:07:14,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 20:07:14,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:07:15,020 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 20:07:15,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883341525] [2020-07-21 20:07:15,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:07:15,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:07:15,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054064610] [2020-07-21 20:07:15,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:07:15,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:15,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:07:15,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:07:15,023 INFO L87 Difference]: Start difference. First operand 3052 states and 3857 transitions. Second operand 6 states. [2020-07-21 20:07:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:16,142 INFO L93 Difference]: Finished difference Result 8800 states and 12119 transitions. [2020-07-21 20:07:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:07:16,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-21 20:07:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:16,178 INFO L225 Difference]: With dead ends: 8800 [2020-07-21 20:07:16,178 INFO L226 Difference]: Without dead ends: 5758 [2020-07-21 20:07:16,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 366 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:07:16,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2020-07-21 20:07:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5002. [2020-07-21 20:07:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5002 states. [2020-07-21 20:07:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 6373 transitions. [2020-07-21 20:07:16,381 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 6373 transitions. Word has length 185 [2020-07-21 20:07:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:16,383 INFO L479 AbstractCegarLoop]: Abstraction has 5002 states and 6373 transitions. [2020-07-21 20:07:16,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:07:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 6373 transitions. [2020-07-21 20:07:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-21 20:07:16,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:07:16,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:07:16,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:16,621 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:07:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:07:16,621 INFO L82 PathProgramCache]: Analyzing trace with hash 2145011220, now seen corresponding path program 1 times [2020-07-21 20:07:16,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:07:16,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686779290] [2020-07-21 20:07:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:16,772 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:07:16,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:07:16,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:07:16,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:07:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 20:07:16,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:07:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 121 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 20:07:16,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686779290] [2020-07-21 20:07:16,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:07:16,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:07:16,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876000212] [2020-07-21 20:07:16,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:07:16,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:07:16,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:07:16,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:07:16,926 INFO L87 Difference]: Start difference. First operand 5002 states and 6373 transitions. Second operand 7 states. [2020-07-21 20:07:18,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:07:18,411 INFO L93 Difference]: Finished difference Result 7739 states and 9904 transitions. [2020-07-21 20:07:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:07:18,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-07-21 20:07:18,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:07:18,412 INFO L225 Difference]: With dead ends: 7739 [2020-07-21 20:07:18,412 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:07:18,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:07:18,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:07:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:07:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:07:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:07:18,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 187 [2020-07-21 20:07:18,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:07:18,431 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:07:18,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:07:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:07:18,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:07:18,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:07:18,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:07:19,368 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 107 [2020-07-21 20:07:19,651 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 107 [2020-07-21 20:07:20,809 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 183 DAG size of output: 82 [2020-07-21 20:07:21,273 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2020-07-21 20:07:21,766 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2020-07-21 20:07:21,771 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:07:21,772 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a20~0 |old(~a20~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-21 20:07:21,772 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:07:21,772 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 20:07:21,772 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 20:07:21,773 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,774 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 20:07:21,775 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 452) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,776 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 20:07:21,777 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 20:07:21,778 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 20:07:21,779 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 20:07:21,780 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 20:07:21,781 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 20:07:21,782 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 20:07:21,783 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 20:07:21,784 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 20:07:21,785 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 20:07:21,785 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 20:07:21,785 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,785 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,785 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,785 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,785 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 20:07:21,786 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (<= ~a21~0 0)) (.cse5 (not (<= |old(~a21~0)| 0))) (.cse15 (not (<= |old(~a20~0)| 0))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse1 (not (<= |old(~a16~0)| 4))) (.cse9 (not (<= |old(~a16~0)| 5))) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse7 (not (<= |old(~a17~0)| 0))) (.cse3 (not (= 1 |old(~a7~0)|))) (.cse11 (= 1 ~a7~0)) (.cse12 (<= ~a20~0 |old(~a20~0)|)) (.cse8 (<= ~a16~0 5)) (.cse13 (<= |old(~a16~0)| ~a16~0)) (.cse2 (<= ~a16~0 4)) (.cse10 (<= ~a8~0 |old(~a8~0)|)) (.cse14 (<= ~a17~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 (and (or .cse5 .cse6 .cse7) (or .cse5 .cse6 .cse1))) (or .cse0 .cse8 .cse9) (or (and .cse10 .cse11 .cse12 .cse4 .cse8 (<= 5 ~a16~0)) .cse5 .cse3 .cse9 .cse6 (not (<= 5 |old(~a16~0)|))) (or (and .cse10 .cse11 .cse12 .cse13 .cse14) .cse3 .cse15 .cse7) (or .cse14 .cse0 .cse7) (or (not (<= 15 |old(~a8~0)|)) .cse0 (<= 15 ~a8~0)) (or .cse3 .cse15 .cse1 .cse2 .cse7) (or (and .cse10 (= ~a7~0 |old(~a7~0)|) .cse12 .cse13) .cse0) (or (and (or .cse6 .cse1) (or .cse9 (not (< |old(~a8~0)| 15)) .cse7) (or .cse6 .cse7)) .cse3 (and .cse11 .cse12 (or (and .cse10 .cse13 .cse14 .cse8) (and .cse13 (let ((.cse16 (<= ~a8~0 13))) (or (and .cse10 .cse16 .cse2) (and .cse10 .cse16 .cse14))))))))) [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 20:07:21,787 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 20:07:21,788 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 20:07:21,789 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 20:07:21,790 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 20:07:21,791 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 20:07:21,791 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 20:07:21,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:07:21,791 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 5 ~a16~0)) [2020-07-21 20:07:21,791 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:07:21,791 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:07:21,791 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)|) (<= ~a20~0 |old(~a20~0)|) (<= ~a16~0 5) (<= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 20:07:21,791 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:07:21,791 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 0)) (.cse3 (<= ~a8~0 13)) (.cse0 (= 1 ~a7~0)) (.cse2 (<= ~a16~0 5))) (or (and .cse0 (or (and .cse1 .cse2 (< ~a8~0 15)) (and .cse3 (<= ~a16~0 4)) (and .cse3 .cse1))) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse1 (<= ~a20~0 0)) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse0 (<= ~a21~0 0) .cse2))) [2020-07-21 20:07:21,791 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 20:07:21,791 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 20:07:21,792 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 0)) (.cse3 (<= ~a8~0 13)) (.cse0 (= 1 ~a7~0)) (.cse2 (<= ~a16~0 5))) (or (and .cse0 (or (and .cse1 .cse2 (< ~a8~0 15)) (and .cse3 (<= ~a16~0 4)) (and .cse3 .cse1))) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse1 (<= ~a20~0 0)) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse0 (<= ~a21~0 0) .cse2))) [2020-07-21 20:07:21,792 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:07:21,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:07:21 BoogieIcfgContainer [2020-07-21 20:07:21,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:07:21,827 INFO L168 Benchmark]: Toolchain (without parser) took 19945.85 ms. Allocated memory was 138.9 MB in the beginning and 489.7 MB in the end (delta: 350.7 MB). Free memory was 101.0 MB in the beginning and 174.8 MB in the end (delta: -73.9 MB). Peak memory consumption was 372.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:07:21,828 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 20:07:21,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.78 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 100.5 MB in the beginning and 171.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:07:21,833 INFO L168 Benchmark]: Boogie Preprocessor took 112.22 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:07:21,834 INFO L168 Benchmark]: RCFGBuilder took 1303.24 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.4 MB in the beginning and 180.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:07:21,835 INFO L168 Benchmark]: TraceAbstraction took 17772.73 ms. Allocated memory was 239.1 MB in the beginning and 489.7 MB in the end (delta: 250.6 MB). Free memory was 180.2 MB in the beginning and 174.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 351.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:07:21,848 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 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.78 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 100.5 MB in the beginning and 171.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.22 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1303.24 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.4 MB in the beginning and 180.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17772.73 ms. Allocated memory was 239.1 MB in the beginning and 489.7 MB in the end (delta: 250.6 MB). Free memory was 180.2 MB in the beginning and 174.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 351.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 452]: 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 && ((((a17 <= 0 && a16 <= 5) && a8 < 15) || (a8 <= 13 && a16 <= 4)) || (a8 <= 13 && a17 <= 0))) || a7 <= 0) || !(\old(a7) <= 0)) || !(\old(a16) <= 5)) || ((1 == a7 && a17 <= 0) && a20 <= 0)) || !(5 <= \old(a16))) || (((a8 <= 13 && 1 == a7) && a21 <= 0) && a16 <= 5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.5s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 850 SDtfs, 2498 SDslu, 295 SDs, 0 SdLazy, 6272 SolverSat, 955 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1962 GetRequests, 1922 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5002occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 3139 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 173 PreInvPairs, 269 NumberOfFragments, 463 HoareAnnotationTreeSize, 173 FomulaSimplifications, 23166 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6180 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1274 NumberOfCodeBlocks, 1274 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1934 ConstructedInterpolants, 0 QuantifiedInterpolants, 562350 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3972 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 1101/1155 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...