/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:56:20,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:56:20,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:56:20,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 13:56:20,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:56:20,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:56:20,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:56:20,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:56:20,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:56:20,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:56:20,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:56:20,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:56:20,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:56:20,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:56:20,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:56:20,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:56:20,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:56:20,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:56:20,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:56:20,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:56:20,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 13:56:20,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:56:20,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:56:20,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:56:20,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:56:20,806 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:56:20,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:56:20,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:56:20,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:56:20,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:56:20,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:56:20,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:56:20,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:56:20,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:56:20,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:56:20,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:56:20,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:56:20,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:56:20,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:56:20,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:56:20,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:56:20,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:56:20,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:56:20,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:56:20,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:56:20,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:56:20,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:56:20,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:20,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:56:20,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:56:20,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:56:21,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:56:21,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:56:21,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:56:21,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:56:21,128 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:56:21,128 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-21 13:56:21,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ccdcf1f7/b01ffc6af88f4f59add0879da8e015f5/FLAG0b59539b4 [2020-07-21 13:56:21,731 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:56:21,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-21 13:56:21,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ccdcf1f7/b01ffc6af88f4f59add0879da8e015f5/FLAG0b59539b4 [2020-07-21 13:56:22,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ccdcf1f7/b01ffc6af88f4f59add0879da8e015f5 [2020-07-21 13:56:22,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:56:22,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:56:22,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:56:22,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:56:22,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:56:22,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:22,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff56c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22, skipping insertion in model container [2020-07-21 13:56:22,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:22,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:56:22,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:56:22,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:56:22,685 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:56:22,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:56:22,908 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:56:22,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22 WrapperNode [2020-07-21 13:56:22,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:56:22,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:56:22,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:56:22,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:56:22,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:22,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:22,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:22,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:22,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:23,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:23,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... [2020-07-21 13:56:23,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:56:23,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:56:23,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:56:23,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:56:23,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:56:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:56:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:56:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:56:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:56:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:56:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:56:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:56:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:56:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:56:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:56:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:56:24,509 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:56:24,510 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:56:24,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:56:24 BoogieIcfgContainer [2020-07-21 13:56:24,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:56:24,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:56:24,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:56:24,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:56:24,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:56:22" (1/3) ... [2020-07-21 13:56:24,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a7c436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:56:24, skipping insertion in model container [2020-07-21 13:56:24,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:56:22" (2/3) ... [2020-07-21 13:56:24,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a7c436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:56:24, skipping insertion in model container [2020-07-21 13:56:24,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:56:24" (3/3) ... [2020-07-21 13:56:24,525 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-07-21 13:56:24,536 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:56:24,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:56:24,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:56:24,589 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:56:24,589 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:56:24,590 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:56:24,590 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:56:24,590 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:56:24,590 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:56:24,591 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:56:24,591 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:56:24,614 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-21 13:56:24,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 13:56:24,624 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:24,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:56:24,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:24,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:24,633 INFO L82 PathProgramCache]: Analyzing trace with hash -281448013, now seen corresponding path program 1 times [2020-07-21 13:56:24,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:24,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342261106] [2020-07-21 13:56:24,642 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:24,765 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:24,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:24,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:56:24,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:56:24,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:24,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342261106] [2020-07-21 13:56:24,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:24,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:56:24,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026982302] [2020-07-21 13:56:24,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:56:24,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:24,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:56:24,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:24,869 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-21 13:56:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:26,301 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-21 13:56:26,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:56:26,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-21 13:56:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:26,324 INFO L225 Difference]: With dead ends: 688 [2020-07-21 13:56:26,325 INFO L226 Difference]: Without dead ends: 372 [2020-07-21 13:56:26,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-21 13:56:26,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-21 13:56:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-21 13:56:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 560 transitions. [2020-07-21 13:56:26,403 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 560 transitions. Word has length 56 [2020-07-21 13:56:26,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:26,404 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 560 transitions. [2020-07-21 13:56:26,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:56:26,405 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 560 transitions. [2020-07-21 13:56:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 13:56:26,411 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:26,412 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:56:26,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:26,627 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:26,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:26,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1442467785, now seen corresponding path program 1 times [2020-07-21 13:56:26,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:26,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272860945] [2020-07-21 13:56:26,630 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:26,737 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:26,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:26,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:56:26,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:56:26,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:26,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272860945] [2020-07-21 13:56:26,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:26,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:56:26,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697847688] [2020-07-21 13:56:26,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:56:26,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:26,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:56:26,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:56:26,813 INFO L87 Difference]: Start difference. First operand 372 states and 560 transitions. Second operand 5 states. [2020-07-21 13:56:28,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:28,325 INFO L93 Difference]: Finished difference Result 1122 states and 1722 transitions. [2020-07-21 13:56:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:56:28,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-07-21 13:56:28,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:28,336 INFO L225 Difference]: With dead ends: 1122 [2020-07-21 13:56:28,336 INFO L226 Difference]: Without dead ends: 756 [2020-07-21 13:56:28,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:56:28,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-07-21 13:56:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 744. [2020-07-21 13:56:28,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-07-21 13:56:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1011 transitions. [2020-07-21 13:56:28,405 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1011 transitions. Word has length 135 [2020-07-21 13:56:28,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:28,406 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 1011 transitions. [2020-07-21 13:56:28,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:56:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1011 transitions. [2020-07-21 13:56:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 13:56:28,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:28,413 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:56:28,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:28,629 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:28,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:28,631 INFO L82 PathProgramCache]: Analyzing trace with hash 123351809, now seen corresponding path program 1 times [2020-07-21 13:56:28,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:28,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070572701] [2020-07-21 13:56:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:28,726 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:28,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:28,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:56:28,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:28,826 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 13:56:28,827 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:56:28,828 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:56:28,847 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:56:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:56:28,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:28,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070572701] [2020-07-21 13:56:28,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:28,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:56:28,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233532122] [2020-07-21 13:56:28,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:56:28,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:28,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:56:28,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:56:28,898 INFO L87 Difference]: Start difference. First operand 744 states and 1011 transitions. Second operand 5 states. [2020-07-21 13:56:30,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:30,382 INFO L93 Difference]: Finished difference Result 1868 states and 2499 transitions. [2020-07-21 13:56:30,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:56:30,383 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-07-21 13:56:30,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:30,391 INFO L225 Difference]: With dead ends: 1868 [2020-07-21 13:56:30,391 INFO L226 Difference]: Without dead ends: 1130 [2020-07-21 13:56:30,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:56:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2020-07-21 13:56:30,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1120. [2020-07-21 13:56:30,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-07-21 13:56:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1443 transitions. [2020-07-21 13:56:30,441 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1443 transitions. Word has length 139 [2020-07-21 13:56:30,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:30,445 INFO L479 AbstractCegarLoop]: Abstraction has 1120 states and 1443 transitions. [2020-07-21 13:56:30,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:56:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1443 transitions. [2020-07-21 13:56:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-21 13:56:30,451 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:30,451 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:56:30,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:30,666 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:30,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:30,666 INFO L82 PathProgramCache]: Analyzing trace with hash -932415830, now seen corresponding path program 1 times [2020-07-21 13:56:30,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:30,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919502902] [2020-07-21 13:56:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:30,776 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:30,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:30,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:56:30,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:56:30,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:30,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919502902] [2020-07-21 13:56:30,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:30,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:56:30,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147256877] [2020-07-21 13:56:30,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:56:30,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:30,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:56:30,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:56:30,901 INFO L87 Difference]: Start difference. First operand 1120 states and 1443 transitions. Second operand 5 states. [2020-07-21 13:56:32,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:32,362 INFO L93 Difference]: Finished difference Result 2454 states and 3400 transitions. [2020-07-21 13:56:32,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:56:32,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2020-07-21 13:56:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:32,381 INFO L225 Difference]: With dead ends: 2454 [2020-07-21 13:56:32,381 INFO L226 Difference]: Without dead ends: 1522 [2020-07-21 13:56:32,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:56:32,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2020-07-21 13:56:32,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1492. [2020-07-21 13:56:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2020-07-21 13:56:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1901 transitions. [2020-07-21 13:56:32,444 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1901 transitions. Word has length 196 [2020-07-21 13:56:32,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:32,446 INFO L479 AbstractCegarLoop]: Abstraction has 1492 states and 1901 transitions. [2020-07-21 13:56:32,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:56:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1901 transitions. [2020-07-21 13:56:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-07-21 13:56:32,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:32,453 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:56:32,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:32,667 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:32,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:32,668 INFO L82 PathProgramCache]: Analyzing trace with hash -657639750, now seen corresponding path program 1 times [2020-07-21 13:56:32,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:32,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602321320] [2020-07-21 13:56:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:32,773 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:32,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:32,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:56:32,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:32,837 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 13:56:32,838 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:56:32,839 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:56:32,856 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 13:56:32,932 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:56:32,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:56:33,085 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-07-21 13:56:33,135 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 13:56:33,137 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,140 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 13:56:33,140 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,144 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:56:33,146 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:56:33,147 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,148 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:56:33,153 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 13:56:33,176 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,177 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 13:56:33,263 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,264 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,315 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 13:56:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 99 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:56:33,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602321320] [2020-07-21 13:56:33,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:56:33,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-21 13:56:33,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040900494] [2020-07-21 13:56:33,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 13:56:33,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:33,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 13:56:33,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-21 13:56:33,555 INFO L87 Difference]: Start difference. First operand 1492 states and 1901 transitions. Second operand 13 states. [2020-07-21 13:56:38,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:38,102 INFO L93 Difference]: Finished difference Result 3936 states and 5247 transitions. [2020-07-21 13:56:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 13:56:38,108 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 223 [2020-07-21 13:56:38,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:38,121 INFO L225 Difference]: With dead ends: 3936 [2020-07-21 13:56:38,121 INFO L226 Difference]: Without dead ends: 2632 [2020-07-21 13:56:38,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2020-07-21 13:56:38,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2020-07-21 13:56:38,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2612. [2020-07-21 13:56:38,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2612 states. [2020-07-21 13:56:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 3290 transitions. [2020-07-21 13:56:38,189 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 3290 transitions. Word has length 223 [2020-07-21 13:56:38,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:38,190 INFO L479 AbstractCegarLoop]: Abstraction has 2612 states and 3290 transitions. [2020-07-21 13:56:38,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 13:56:38,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 3290 transitions. [2020-07-21 13:56:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-07-21 13:56:38,195 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:38,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:56:38,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:38,409 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:38,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:38,410 INFO L82 PathProgramCache]: Analyzing trace with hash 2106362550, now seen corresponding path program 1 times [2020-07-21 13:56:38,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:38,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828793286] [2020-07-21 13:56:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:38,526 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:38,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:38,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:56:38,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-07-21 13:56:38,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:38,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828793286] [2020-07-21 13:56:38,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:38,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:56:38,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866294972] [2020-07-21 13:56:38,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:56:38,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:38,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:56:38,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:38,596 INFO L87 Difference]: Start difference. First operand 2612 states and 3290 transitions. Second operand 3 states. [2020-07-21 13:56:39,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:39,537 INFO L93 Difference]: Finished difference Result 3530 states and 4475 transitions. [2020-07-21 13:56:39,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:56:39,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-07-21 13:56:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:39,562 INFO L225 Difference]: With dead ends: 3530 [2020-07-21 13:56:39,563 INFO L226 Difference]: Without dead ends: 3528 [2020-07-21 13:56:39,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:39,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2020-07-21 13:56:39,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3164. [2020-07-21 13:56:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2020-07-21 13:56:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 4009 transitions. [2020-07-21 13:56:39,654 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 4009 transitions. Word has length 273 [2020-07-21 13:56:39,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:39,655 INFO L479 AbstractCegarLoop]: Abstraction has 3164 states and 4009 transitions. [2020-07-21 13:56:39,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:56:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 4009 transitions. [2020-07-21 13:56:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2020-07-21 13:56:39,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:39,669 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-07-21 13:56:39,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:39,883 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:39,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:39,883 INFO L82 PathProgramCache]: Analyzing trace with hash 313381864, now seen corresponding path program 1 times [2020-07-21 13:56:39,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:39,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469437949] [2020-07-21 13:56:39,884 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:40,105 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:40,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:40,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:56:40,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2020-07-21 13:56:40,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:40,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469437949] [2020-07-21 13:56:40,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:40,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:56:40,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564296667] [2020-07-21 13:56:40,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:56:40,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:40,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:56:40,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:40,242 INFO L87 Difference]: Start difference. First operand 3164 states and 4009 transitions. Second operand 3 states. [2020-07-21 13:56:41,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:41,179 INFO L93 Difference]: Finished difference Result 4266 states and 5394 transitions. [2020-07-21 13:56:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:56:41,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 471 [2020-07-21 13:56:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:41,199 INFO L225 Difference]: With dead ends: 4266 [2020-07-21 13:56:41,199 INFO L226 Difference]: Without dead ends: 4264 [2020-07-21 13:56:41,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:41,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2020-07-21 13:56:41,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 3170. [2020-07-21 13:56:41,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3170 states. [2020-07-21 13:56:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4017 transitions. [2020-07-21 13:56:41,292 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4017 transitions. Word has length 471 [2020-07-21 13:56:41,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:41,293 INFO L479 AbstractCegarLoop]: Abstraction has 3170 states and 4017 transitions. [2020-07-21 13:56:41,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:56:41,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4017 transitions. [2020-07-21 13:56:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2020-07-21 13:56:41,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:41,313 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:56:41,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:41,525 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:41,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:41,526 INFO L82 PathProgramCache]: Analyzing trace with hash 179295736, now seen corresponding path program 1 times [2020-07-21 13:56:41,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:41,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23638759] [2020-07-21 13:56:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:41,802 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:41,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:41,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:56:41,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:42,099 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2020-07-21 13:56:42,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:42,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23638759] [2020-07-21 13:56:42,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:42,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:56:42,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259890016] [2020-07-21 13:56:42,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:56:42,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:42,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:56:42,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:42,108 INFO L87 Difference]: Start difference. First operand 3170 states and 4017 transitions. Second operand 3 states. [2020-07-21 13:56:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:43,156 INFO L93 Difference]: Finished difference Result 4274 states and 5711 transitions. [2020-07-21 13:56:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:56:43,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 527 [2020-07-21 13:56:43,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:43,174 INFO L225 Difference]: With dead ends: 4274 [2020-07-21 13:56:43,174 INFO L226 Difference]: Without dead ends: 4272 [2020-07-21 13:56:43,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2020-07-21 13:56:43,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 3172. [2020-07-21 13:56:43,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3172 states. [2020-07-21 13:56:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 4024 transitions. [2020-07-21 13:56:43,255 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 4024 transitions. Word has length 527 [2020-07-21 13:56:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:43,256 INFO L479 AbstractCegarLoop]: Abstraction has 3172 states and 4024 transitions. [2020-07-21 13:56:43,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:56:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 4024 transitions. [2020-07-21 13:56:43,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2020-07-21 13:56:43,267 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:56:43,268 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:56:43,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:43,484 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:56:43,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:56:43,485 INFO L82 PathProgramCache]: Analyzing trace with hash -347572093, now seen corresponding path program 1 times [2020-07-21 13:56:43,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:56:43,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083206183] [2020-07-21 13:56:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:43,708 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:56:43,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:56:43,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:56:43,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:56:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2020-07-21 13:56:43,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:56:43,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083206183] [2020-07-21 13:56:43,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:56:43,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:56:43,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397375017] [2020-07-21 13:56:43,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:56:43,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:56:43,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:56:43,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:43,876 INFO L87 Difference]: Start difference. First operand 3172 states and 4024 transitions. Second operand 3 states. [2020-07-21 13:56:44,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:56:44,838 INFO L93 Difference]: Finished difference Result 7072 states and 8970 transitions. [2020-07-21 13:56:44,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:56:44,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 554 [2020-07-21 13:56:44,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:56:44,841 INFO L225 Difference]: With dead ends: 7072 [2020-07-21 13:56:44,841 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:56:44,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:56:44,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:56:44,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:56:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:56:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:56:44,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 554 [2020-07-21 13:56:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:56:44,855 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:56:44,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:56:44,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:56:44,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:56:45,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:56:45,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:56:46,121 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 47 [2020-07-21 13:56:46,241 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-07-21 13:56:46,339 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:56:46,339 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= ~a24~0 |old(~a24~0)|) (<= ~a15~0 |old(~a15~0)|) (<= |old(~a21~0)| ~a21~0)) [2020-07-21 13:56:46,340 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:56:46,340 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-21 13:56:46,340 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-21 13:56:46,340 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,340 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,341 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,341 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-21 13:56:46,341 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 13:56:46,341 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 13:56:46,341 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 13:56:46,341 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-21 13:56:46,342 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,343 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-21 13:56:46,344 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 13:56:46,345 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 13:56:46,346 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,347 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-21 13:56:46,348 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 13:56:46,349 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-21 13:56:46,350 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-21 13:56:46,351 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 13:56:46,351 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 13:56:46,351 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 13:56:46,351 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-21 13:56:46,351 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse1 (<= ~a12~0 |old(~a12~0)|)) (.cse2 (<= ~a24~0 |old(~a24~0)|)) (.cse3 (<= ~a15~0 |old(~a15~0)|)) (.cse4 (<= |old(~a21~0)| ~a21~0))) (let ((.cse0 (and .cse1 .cse2 .cse3 .cse4))) (and (or (not (<= |old(~a21~0)| 7)) (<= ~a21~0 7)) (or (not (<= |old(~a24~0)| 1)) (not (< |old(~a12~0)| 81)) .cse0) (or (not (<= |old(~a15~0)| 5)) .cse0) (or (not (<= 8 |old(~a15~0)|)) (<= 8 ~a15~0)) (or (and (not (<= |old(~a21~0)| 9)) (not (<= 7 |old(~a15~0)|))) (and .cse1 .cse2 .cse3 (<= ~a21~0 9) .cse4) (and .cse1 (<= 7 ~a15~0) .cse2 .cse3 .cse4))))) [2020-07-21 13:56:46,351 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-21 13:56:46,351 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-21 13:56:46,352 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 13:56:46,353 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-21 13:56:46,354 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,355 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-21 13:56:46,356 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-21 13:56:46,357 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 13:56:46,358 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-21 13:56:46,359 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,360 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,361 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 13:56:46,362 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,363 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,364 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-21 13:56:46,365 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-21 13:56:46,366 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 13:56:46,367 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 13:56:46,368 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 13:56:46,368 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-21 13:56:46,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:56:46,368 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a24~0 1) (<= (+ ~a12~0 49) 0) (<= ~a15~0 8) (<= 7 ~a21~0) (<= ~a21~0 7) (<= 8 ~a15~0)) [2020-07-21 13:56:46,368 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:56:46,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:56:46,368 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (<= |old(~a24~0)| 1)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a15~0)| 8)) (and (<= ~a12~0 |old(~a12~0)|) (<= ~a24~0 |old(~a24~0)|) (<= ~a15~0 8) (<= ~a21~0 7) (<= |old(~a21~0)| ~a21~0) (<= 8 ~a15~0)) (not (<= |old(~a21~0)| 7)) (not (<= 8 |old(~a15~0)|))) [2020-07-21 13:56:46,369 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-21 13:56:46,369 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (or (not (<= |old(~a24~0)| 1)) (and (< ~a24~0 2) (< ~a12~0 81)) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7)) (not (<= 8 |old(~a15~0)|)) (<= ~a21~0 9)) [2020-07-21 13:56:46,369 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-21 13:56:46,369 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-21 13:56:46,369 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (or (not (<= |old(~a24~0)| 1)) (and (< ~a24~0 2) (< ~a12~0 81)) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7)) (not (<= 8 |old(~a15~0)|)) (<= ~a21~0 9)) [2020-07-21 13:56:46,369 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-21 13:56:46,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:56:46 BoogieIcfgContainer [2020-07-21 13:56:46,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:56:46,394 INFO L168 Benchmark]: Toolchain (without parser) took 24353.23 ms. Allocated memory was 137.4 MB in the beginning and 602.4 MB in the end (delta: 465.0 MB). Free memory was 100.1 MB in the beginning and 420.4 MB in the end (delta: -320.3 MB). Peak memory consumption was 433.5 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:46,395 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 13:56:46,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 866.04 ms. Allocated memory was 137.4 MB in the beginning and 205.0 MB in the end (delta: 67.6 MB). Free memory was 99.9 MB in the beginning and 167.2 MB in the end (delta: -67.3 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:46,396 INFO L168 Benchmark]: Boogie Preprocessor took 152.99 ms. Allocated memory is still 205.0 MB. Free memory was 167.2 MB in the beginning and 162.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:46,397 INFO L168 Benchmark]: RCFGBuilder took 1453.58 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 162.1 MB in the beginning and 155.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:46,398 INFO L168 Benchmark]: TraceAbstraction took 21874.50 ms. Allocated memory was 235.4 MB in the beginning and 602.4 MB in the end (delta: 367.0 MB). Free memory was 155.5 MB in the beginning and 420.4 MB in the end (delta: -264.9 MB). Peak memory consumption was 390.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:56:46,401 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 866.04 ms. Allocated memory was 137.4 MB in the beginning and 205.0 MB in the end (delta: 67.6 MB). Free memory was 99.9 MB in the beginning and 167.2 MB in the end (delta: -67.3 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.99 ms. Allocated memory is still 205.0 MB. Free memory was 167.2 MB in the beginning and 162.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1453.58 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 162.1 MB in the beginning and 155.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21874.50 ms. Allocated memory was 235.4 MB in the beginning and 602.4 MB in the end (delta: 367.0 MB). Free memory was 155.5 MB in the beginning and 420.4 MB in the end (delta: -264.9 MB). Peak memory consumption was 390.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((!(\old(a24) <= 1) || (a24 < 2 && a12 < 81)) || 7 <= a15) || a15 <= 5) || !(\old(a12) + 49 <= 0)) || !(7 <= \old(a21))) || !(\old(a15) <= 8)) || !(\old(a21) <= 7)) || !(8 <= \old(a15))) || a21 <= 9 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.4s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 601 SDtfs, 3917 SDslu, 256 SDs, 0 SdLazy, 7547 SolverSat, 1822 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2805 GetRequests, 2762 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3172occurred 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: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 2630 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 63 PreInvPairs, 107 NumberOfFragments, 266 HoareAnnotationTreeSize, 63 FomulaSimplifications, 5297 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1401 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2574 NumberOfCodeBlocks, 2574 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2787 ConstructedInterpolants, 0 QuantifiedInterpolants, 2185585 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4238 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 2949/3033 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...