/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 BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:30:20,651 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:30:20,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:30:20,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:30:20,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:30:20,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:30:20,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:30:20,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:30:20,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:30:20,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:30:20,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:30:20,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:30:20,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:30:20,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:30:20,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:30:20,702 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 01:30:20,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:30:20,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:30:20,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:30:20,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:30:20,728 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:30:20,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:30:20,728 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:30:20,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:30:20,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:30:20,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:30:20,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:30:20,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:30:20,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:30:20,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:30:20,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:30:20,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:30:20,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:30:20,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:30:20,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:30:20,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:30:20,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:30:20,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:30:20,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:30:20,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:30:20,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:30:20,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:30:20,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:20,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:30:20,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:30:20,733 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 -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:30:21,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:30:21,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:30:21,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:30:21,045 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:30:21,046 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:30:21,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-07-21 01:30:21,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/926aa85b0/4f0555f220d4436da63563db0fa89ac0/FLAG7237920bb [2020-07-21 01:30:21,627 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:30:21,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-07-21 01:30:21,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/926aa85b0/4f0555f220d4436da63563db0fa89ac0/FLAG7237920bb [2020-07-21 01:30:21,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/926aa85b0/4f0555f220d4436da63563db0fa89ac0 [2020-07-21 01:30:21,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:30:21,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:30:21,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:30:21,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:30:21,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:30:21,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:30:21" (1/1) ... [2020-07-21 01:30:21,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8e84bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:21, skipping insertion in model container [2020-07-21 01:30:21,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:30:21" (1/1) ... [2020-07-21 01:30:21,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:30:22,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:30:22,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:30:22,716 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:30:22,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:30:22,894 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:30:22,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22 WrapperNode [2020-07-21 01:30:22,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:30:22,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:30:22,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:30:22,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:30:22,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (1/1) ... [2020-07-21 01:30:22,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (1/1) ... [2020-07-21 01:30:22,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (1/1) ... [2020-07-21 01:30:22,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (1/1) ... [2020-07-21 01:30:22,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (1/1) ... [2020-07-21 01:30:23,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (1/1) ... [2020-07-21 01:30:23,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (1/1) ... [2020-07-21 01:30:23,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:30:23,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:30:23,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:30:23,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:30:23,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (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 01:30:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:30:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:30:23,105 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:30:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:30:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:30:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:30:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:30:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:30:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:30:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:30:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:30:24,467 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:30:24,467 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:30:24,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:30:24 BoogieIcfgContainer [2020-07-21 01:30:24,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:30:24,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:30:24,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:30:24,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:30:24,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:30:21" (1/3) ... [2020-07-21 01:30:24,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdb338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:30:24, skipping insertion in model container [2020-07-21 01:30:24,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:22" (2/3) ... [2020-07-21 01:30:24,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdb338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:30:24, skipping insertion in model container [2020-07-21 01:30:24,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:30:24" (3/3) ... [2020-07-21 01:30:24,483 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label52.c [2020-07-21 01:30:24,495 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:30:24,503 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:30:24,518 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:30:24,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:30:24,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:30:24,547 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:30:24,547 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:30:24,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:30:24,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:30:24,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:30:24,547 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:30:24,572 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 01:30:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 01:30:24,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:24,582 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] [2020-07-21 01:30:24,582 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:24,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:24,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1515832586, now seen corresponding path program 1 times [2020-07-21 01:30:24,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:24,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005540704] [2020-07-21 01:30:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:24,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:24,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:24,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:30:24,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:24,800 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 01:30:24,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:24,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005540704] [2020-07-21 01:30:24,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:24,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:30:24,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684038034] [2020-07-21 01:30:24,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:30:24,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:24,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:30:24,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:30:24,828 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 01:30:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:25,998 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 01:30:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:30:26,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 01:30:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:26,016 INFO L225 Difference]: With dead ends: 571 [2020-07-21 01:30:26,016 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 01:30:26,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 01:30:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 01:30:26,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 01:30:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 01:30:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 01:30:26,096 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 47 [2020-07-21 01:30:26,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:26,097 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 01:30:26,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:30:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 01:30:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 01:30:26,103 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:26,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:26,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:26,314 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:26,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash -847678062, now seen corresponding path program 1 times [2020-07-21 01:30:26,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:26,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266955068] [2020-07-21 01:30:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:26,415 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:26,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:26,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:30:26,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:30:26,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:30:26,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266955068] [2020-07-21 01:30:26,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:30:26,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 01:30:26,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983969656] [2020-07-21 01:30:26,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:30:26,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:26,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:30:26,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:26,675 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 01:30:27,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:27,457 INFO L93 Difference]: Finished difference Result 586 states and 788 transitions. [2020-07-21 01:30:27,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:30:27,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-07-21 01:30:27,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:27,472 INFO L225 Difference]: With dead ends: 586 [2020-07-21 01:30:27,473 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 01:30:27,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 226 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:27,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 01:30:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 01:30:27,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 01:30:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 786 transitions. [2020-07-21 01:30:27,535 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 786 transitions. Word has length 117 [2020-07-21 01:30:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:27,535 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 786 transitions. [2020-07-21 01:30:27,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:30:27,536 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 786 transitions. [2020-07-21 01:30:27,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 01:30:27,541 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:27,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:27,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:27,749 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:27,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:27,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1601579245, now seen corresponding path program 1 times [2020-07-21 01:30:27,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:27,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168860338] [2020-07-21 01:30:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:27,855 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:30:27,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:27,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:30:27,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:27,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:27,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168860338] [2020-07-21 01:30:27,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:27,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:30:27,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709151460] [2020-07-21 01:30:27,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:30:27,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:27,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:30:27,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:27,931 INFO L87 Difference]: Start difference. First operand 584 states and 786 transitions. Second operand 5 states. [2020-07-21 01:30:28,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:28,909 INFO L93 Difference]: Finished difference Result 1321 states and 1762 transitions. [2020-07-21 01:30:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:30:28,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-07-21 01:30:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:28,915 INFO L225 Difference]: With dead ends: 1321 [2020-07-21 01:30:28,916 INFO L226 Difference]: Without dead ends: 743 [2020-07-21 01:30:28,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:30:28,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-07-21 01:30:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 596. [2020-07-21 01:30:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-07-21 01:30:28,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 794 transitions. [2020-07-21 01:30:28,946 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 794 transitions. Word has length 120 [2020-07-21 01:30:28,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:28,946 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 794 transitions. [2020-07-21 01:30:28,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:30:28,947 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 794 transitions. [2020-07-21 01:30:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 01:30:28,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:28,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:29,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:29,166 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:29,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:29,167 INFO L82 PathProgramCache]: Analyzing trace with hash -446355495, now seen corresponding path program 1 times [2020-07-21 01:30:29,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:29,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385143471] [2020-07-21 01:30:29,168 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:29,272 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:29,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:29,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:29,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:29,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:29,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385143471] [2020-07-21 01:30:29,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:29,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:30:29,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418819550] [2020-07-21 01:30:29,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:30:29,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:29,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:30:29,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:30:29,307 INFO L87 Difference]: Start difference. First operand 596 states and 794 transitions. Second operand 3 states. [2020-07-21 01:30:30,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:30,022 INFO L93 Difference]: Finished difference Result 1337 states and 1916 transitions. [2020-07-21 01:30:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:30:30,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-21 01:30:30,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:30,033 INFO L225 Difference]: With dead ends: 1337 [2020-07-21 01:30:30,033 INFO L226 Difference]: Without dead ends: 890 [2020-07-21 01:30:30,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:30:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-07-21 01:30:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 888. [2020-07-21 01:30:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-07-21 01:30:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1202 transitions. [2020-07-21 01:30:30,077 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1202 transitions. Word has length 126 [2020-07-21 01:30:30,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:30,078 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 1202 transitions. [2020-07-21 01:30:30,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:30:30,078 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1202 transitions. [2020-07-21 01:30:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-21 01:30:30,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:30,085 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, 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] [2020-07-21 01:30:30,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:30,297 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:30,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:30,298 INFO L82 PathProgramCache]: Analyzing trace with hash 575405521, now seen corresponding path program 1 times [2020-07-21 01:30:30,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:30,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184517236] [2020-07-21 01:30:30,298 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:30,451 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:30,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:30,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:30:30,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:30,521 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 01:30:30,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 01:30:30,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184517236] [2020-07-21 01:30:30,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:30:30,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-21 01:30:30,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757839682] [2020-07-21 01:30:30,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:30:30,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:30,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:30:30,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:30:30,675 INFO L87 Difference]: Start difference. First operand 888 states and 1202 transitions. Second operand 5 states. [2020-07-21 01:30:31,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:31,600 INFO L93 Difference]: Finished difference Result 1939 states and 2687 transitions. [2020-07-21 01:30:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:30:31,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2020-07-21 01:30:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:31,612 INFO L225 Difference]: With dead ends: 1939 [2020-07-21 01:30:31,612 INFO L226 Difference]: Without dead ends: 1200 [2020-07-21 01:30:31,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 370 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:30:31,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2020-07-21 01:30:31,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1190. [2020-07-21 01:30:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2020-07-21 01:30:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1474 transitions. [2020-07-21 01:30:31,673 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1474 transitions. Word has length 190 [2020-07-21 01:30:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:31,674 INFO L479 AbstractCegarLoop]: Abstraction has 1190 states and 1474 transitions. [2020-07-21 01:30:31,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:30:31,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1474 transitions. [2020-07-21 01:30:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-21 01:30:31,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:31,686 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:30:31,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:31,902 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:31,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:31,902 INFO L82 PathProgramCache]: Analyzing trace with hash 271418902, now seen corresponding path program 1 times [2020-07-21 01:30:31,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:31,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367928292] [2020-07-21 01:30:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:32,027 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:32,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:32,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:32,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:32,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:32,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367928292] [2020-07-21 01:30:32,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:32,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:30:32,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254356144] [2020-07-21 01:30:32,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:30:32,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:32,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:30:32,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:30:32,256 INFO L87 Difference]: Start difference. First operand 1190 states and 1474 transitions. Second operand 8 states. [2020-07-21 01:30:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:33,732 INFO L93 Difference]: Finished difference Result 2841 states and 3740 transitions. [2020-07-21 01:30:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:30:33,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-07-21 01:30:33,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:33,746 INFO L225 Difference]: With dead ends: 2841 [2020-07-21 01:30:33,746 INFO L226 Difference]: Without dead ends: 1800 [2020-07-21 01:30:33,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:30:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2020-07-21 01:30:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1645. [2020-07-21 01:30:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-07-21 01:30:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2115 transitions. [2020-07-21 01:30:33,826 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2115 transitions. Word has length 207 [2020-07-21 01:30:33,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:33,826 INFO L479 AbstractCegarLoop]: Abstraction has 1645 states and 2115 transitions. [2020-07-21 01:30:33,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:30:33,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2115 transitions. [2020-07-21 01:30:33,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-07-21 01:30:33,832 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:33,833 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, 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] [2020-07-21 01:30:34,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:34,047 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:34,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:34,048 INFO L82 PathProgramCache]: Analyzing trace with hash 740497305, now seen corresponding path program 1 times [2020-07-21 01:30:34,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:34,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053377123] [2020-07-21 01:30:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:34,203 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:34,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:34,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:34,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:34,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:34,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053377123] [2020-07-21 01:30:34,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:34,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:30:34,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280031206] [2020-07-21 01:30:34,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:30:34,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:34,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:30:34,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:30:34,413 INFO L87 Difference]: Start difference. First operand 1645 states and 2115 transitions. Second operand 6 states. [2020-07-21 01:30:35,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:35,505 INFO L93 Difference]: Finished difference Result 3175 states and 4193 transitions. [2020-07-21 01:30:35,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:30:35,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2020-07-21 01:30:35,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:35,518 INFO L225 Difference]: With dead ends: 3175 [2020-07-21 01:30:35,518 INFO L226 Difference]: Without dead ends: 1679 [2020-07-21 01:30:35,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 512 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:30:35,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2020-07-21 01:30:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1504. [2020-07-21 01:30:35,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2020-07-21 01:30:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1777 transitions. [2020-07-21 01:30:35,576 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1777 transitions. Word has length 258 [2020-07-21 01:30:35,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:35,577 INFO L479 AbstractCegarLoop]: Abstraction has 1504 states and 1777 transitions. [2020-07-21 01:30:35,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:30:35,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1777 transitions. [2020-07-21 01:30:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-07-21 01:30:35,583 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:35,583 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, 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] [2020-07-21 01:30:35,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:35,797 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:35,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1642135730, now seen corresponding path program 1 times [2020-07-21 01:30:35,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:35,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376770906] [2020-07-21 01:30:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:35,910 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:30:35,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:35,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-21 01:30:35,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:35,981 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:35,983 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:51,004 WARN L193 SmtUtils]: Spent 14.98 s on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 01:30:51,041 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:51,268 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 01:30:51,269 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:51,271 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:30:51,272 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:30:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 118 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:51,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:51,755 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:30:52,082 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:30:52,084 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:52,086 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:30:52,086 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:30:52,088 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:58,254 WARN L193 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2020-07-21 01:30:58,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376770906] [2020-07-21 01:30:58,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:30:58,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 01:30:58,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971293670] [2020-07-21 01:30:58,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:30:58,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:58,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:30:58,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:30:58,263 INFO L87 Difference]: Start difference. First operand 1504 states and 1777 transitions. Second operand 9 states. [2020-07-21 01:31:04,380 WARN L193 SmtUtils]: Spent 5.56 s on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-07-21 01:31:44,596 WARN L193 SmtUtils]: Spent 34.18 s on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-07-21 01:31:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:45,882 INFO L93 Difference]: Finished difference Result 3984 states and 4968 transitions. [2020-07-21 01:31:45,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 01:31:45,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 267 [2020-07-21 01:31:45,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:45,902 INFO L225 Difference]: With dead ends: 3984 [2020-07-21 01:31:45,902 INFO L226 Difference]: Without dead ends: 2602 [2020-07-21 01:31:45,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 437 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 61.8s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-07-21 01:31:45,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2020-07-21 01:31:45,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2521. [2020-07-21 01:31:45,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2020-07-21 01:31:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3059 transitions. [2020-07-21 01:31:46,006 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3059 transitions. Word has length 267 [2020-07-21 01:31:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:46,007 INFO L479 AbstractCegarLoop]: Abstraction has 2521 states and 3059 transitions. [2020-07-21 01:31:46,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:31:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3059 transitions. [2020-07-21 01:31:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-07-21 01:31:46,017 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:46,017 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, 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, 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] [2020-07-21 01:31:46,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:46,232 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:46,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:46,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1698020394, now seen corresponding path program 1 times [2020-07-21 01:31:46,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:46,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241664266] [2020-07-21 01:31:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:46,382 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:31:46,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:46,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:31:46,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:46,469 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-21 01:31:46,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:31:46,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241664266] [2020-07-21 01:31:46,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:31:46,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:31:46,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067090070] [2020-07-21 01:31:46,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:31:46,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:46,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:31:46,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:31:46,472 INFO L87 Difference]: Start difference. First operand 2521 states and 3059 transitions. Second operand 3 states. [2020-07-21 01:31:47,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:47,761 INFO L93 Difference]: Finished difference Result 4893 states and 5970 transitions. [2020-07-21 01:31:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:31:47,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-07-21 01:31:47,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:47,775 INFO L225 Difference]: With dead ends: 4893 [2020-07-21 01:31:47,776 INFO L226 Difference]: Without dead ends: 2521 [2020-07-21 01:31:47,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 301 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 01:31:47,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2020-07-21 01:31:47,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2084. [2020-07-21 01:31:47,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2020-07-21 01:31:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2456 transitions. [2020-07-21 01:31:47,849 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2456 transitions. Word has length 303 [2020-07-21 01:31:47,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:47,850 INFO L479 AbstractCegarLoop]: Abstraction has 2084 states and 2456 transitions. [2020-07-21 01:31:47,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:31:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2456 transitions. [2020-07-21 01:31:47,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-07-21 01:31:47,861 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:47,861 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:31:48,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:48,077 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:48,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:48,078 INFO L82 PathProgramCache]: Analyzing trace with hash 345719157, now seen corresponding path program 1 times [2020-07-21 01:31:48,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:48,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248139836] [2020-07-21 01:31:48,079 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:48,215 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:31:48,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:48,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 01:31:48,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:48,254 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:48,255 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:48,255 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:31:48,258 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:48,259 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:48,261 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:48,262 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:48,264 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:32:02,310 WARN L193 SmtUtils]: Spent 14.00 s on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-07-21 01:32:02,353 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:32:02,522 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:32:02,522 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:02,523 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:02,574 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 346 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 01:32:02,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:32:02,873 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:02,874 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:02,875 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:02,876 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:02,913 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:02,914 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:03,091 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,093 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,093 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,094 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,096 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,097 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,098 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,099 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,101 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:03,106 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:03,107 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,108 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,109 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,111 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,113 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:32:03,114 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,117 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:32:03,118 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:32:03,119 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,121 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,122 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,122 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,124 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,128 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,134 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,136 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,138 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:03,139 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,139 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,140 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,140 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:03,141 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,142 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:03,143 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:03,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248139836] [2020-07-21 01:32:03,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:32:03,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 01:32:03,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341590172] [2020-07-21 01:32:03,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:32:03,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:03,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:32:03,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:32:03,346 INFO L87 Difference]: Start difference. First operand 2084 states and 2456 transitions. Second operand 8 states. [2020-07-21 01:32:04,785 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-07-21 01:35:16,124 WARN L193 SmtUtils]: Spent 22.65 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-07-21 01:35:47,181 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-21 01:35:57,705 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2020-07-21 01:36:38,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:36:38,094 INFO L93 Difference]: Finished difference Result 4774 states and 5756 transitions. [2020-07-21 01:36:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 01:36:38,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 358 [2020-07-21 01:36:38,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:36:38,110 INFO L225 Difference]: With dead ends: 4774 [2020-07-21 01:36:38,111 INFO L226 Difference]: Without dead ends: 2839 [2020-07-21 01:36:38,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 585 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:36:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2020-07-21 01:36:38,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2678. [2020-07-21 01:36:38,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2678 states. [2020-07-21 01:36:38,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3114 transitions. [2020-07-21 01:36:38,185 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3114 transitions. Word has length 358 [2020-07-21 01:36:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:36:38,185 INFO L479 AbstractCegarLoop]: Abstraction has 2678 states and 3114 transitions. [2020-07-21 01:36:38,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:36:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3114 transitions. [2020-07-21 01:36:38,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-07-21 01:36:38,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:36:38,197 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 01:36:38,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:36:38,411 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:36:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:36:38,411 INFO L82 PathProgramCache]: Analyzing trace with hash -444214874, now seen corresponding path program 1 times [2020-07-21 01:36:38,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:36:38,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885752418] [2020-07-21 01:36:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:36:38,633 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:36:38,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:36:38,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:36:38,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:36:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-07-21 01:36:38,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:36:38,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885752418] [2020-07-21 01:36:38,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:36:38,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:36:38,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974725033] [2020-07-21 01:36:38,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:36:38,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:36:38,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:36:38,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:36:38,746 INFO L87 Difference]: Start difference. First operand 2678 states and 3114 transitions. Second operand 3 states. [2020-07-21 01:36:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:36:41,008 INFO L93 Difference]: Finished difference Result 5493 states and 6402 transitions. [2020-07-21 01:36:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:36:41,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 377 [2020-07-21 01:36:41,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:36:41,015 INFO L225 Difference]: With dead ends: 5493 [2020-07-21 01:36:41,015 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:36:41,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 375 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 01:36:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:36:41,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:36:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:36:41,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:36:41,026 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 377 [2020-07-21 01:36:41,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:36:41,026 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:36:41,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:36:41,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:36:41,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:36:41,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:36:41,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:36:41,989 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 125 [2020-07-21 01:36:42,095 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2020-07-21 01:36:42,295 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-07-21 01:36:44,521 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 184 DAG size of output: 54 [2020-07-21 01:36:44,681 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 18 [2020-07-21 01:36:45,576 WARN L193 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 37 [2020-07-21 01:36:46,538 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 37 [2020-07-21 01:36:46,544 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:36:46,544 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (or (<= 10 |old(~a19~0)|) (< ~a19~0 10)) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (or (<= 9 ~a19~0) (< |old(~a19~0)| 9))) [2020-07-21 01:36:46,545 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:36:46,545 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 01:36:46,545 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,545 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,545 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,545 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,545 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:36:46,546 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,547 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 01:36:46,548 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 01:36:46,549 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 01:36:46,549 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-07-21 01:36:46,549 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 01:36:46,549 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,549 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,549 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,549 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 01:36:46,550 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 01:36:46,551 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 01:36:46,551 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 01:36:46,551 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,551 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,551 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,551 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,551 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:36:46,552 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,553 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 01:36:46,554 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,555 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:36:46,556 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,557 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:36:46,558 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 01:36:46,559 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 01:36:46,560 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (<= |old(~a10~0)| ~a10~0)) (.cse0 (= ~a19~0 |old(~a19~0)|)) (.cse1 (= ~a1~0 |old(~a1~0)|))) (let ((.cse2 (not (= 0 ~a12~0))) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (<= |old(~a19~0)| 9))) (.cse6 (and (<= ~a10~0 |old(~a10~0)|) .cse5 .cse0 .cse1))) (and (or (and (<= ~a10~0 2) .cse0 (<= 2 ~a10~0) .cse1) .cse2 .cse3 .cse4 (not (<= 2 |old(~a10~0)|)) (not (<= |old(~a10~0)| 2))) (or .cse2 (not (<= 9 |old(~a19~0)|)) (and .cse5 .cse0 (< ~a10~0 4) .cse1) .cse3 (not (< |old(~a10~0)| 4)) .cse4) (or (not (<= |old(~a19~0)| 6)) .cse2 .cse3 .cse6) (or .cse2 .cse3 .cse6 (not (<= |old(~a10~0)| 1))) (or (not (<= 4 |old(~a10~0)|)) .cse2 .cse3 .cse4 .cse6)))) [2020-07-21 01:36:46,560 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:36:46,561 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,562 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 01:36:46,563 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 01:36:46,564 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 01:36:46,565 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 01:36:46,566 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:36:46,566 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (= 23 ~a1~0)) [2020-07-21 01:36:46,566 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:36:46,566 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:36:46,566 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 01:36:46,566 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:36:46,566 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (and .cse0 (<= 9 ~a19~0)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and .cse0 (<= ~a10~0 2)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 01:36:46,567 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 01:36:46,567 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 01:36:46,567 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (and .cse0 (<= 9 ~a19~0)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and .cse0 (<= ~a10~0 2)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 01:36:46,567 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:36:46,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:36:46 BoogieIcfgContainer [2020-07-21 01:36:46,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:36:46,588 INFO L168 Benchmark]: Toolchain (without parser) took 384630.26 ms. Allocated memory was 145.2 MB in the beginning and 456.1 MB in the end (delta: 310.9 MB). Free memory was 101.4 MB in the beginning and 393.2 MB in the end (delta: -291.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:36:46,589 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 01:36:46,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 934.84 ms. Allocated memory was 145.2 MB in the beginning and 206.0 MB in the end (delta: 60.8 MB). Free memory was 101.2 MB in the beginning and 171.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:36:46,591 INFO L168 Benchmark]: Boogie Preprocessor took 130.72 ms. Allocated memory is still 206.0 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:36:46,592 INFO L168 Benchmark]: RCFGBuilder took 1447.21 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 182.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:36:46,592 INFO L168 Benchmark]: TraceAbstraction took 382111.45 ms. Allocated memory was 238.6 MB in the beginning and 456.1 MB in the end (delta: 217.6 MB). Free memory was 180.9 MB in the beginning and 393.2 MB in the end (delta: -212.3 MB). Peak memory consumption was 335.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:36:46,595 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 934.84 ms. Allocated memory was 145.2 MB in the beginning and 206.0 MB in the end (delta: 60.8 MB). Free memory was 101.2 MB in the beginning and 171.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.72 ms. Allocated memory is still 206.0 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1447.21 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 182.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 382111.45 ms. Allocated memory was 238.6 MB in the beginning and 456.1 MB in the end (delta: 217.6 MB). Free memory was 180.9 MB in the beginning and 393.2 MB in the end (delta: -212.3 MB). Peak memory consumption was 335.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((a10 <= 1 || (a19 <= 9 && 9 <= a19)) || a19 <= 6) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || (a19 <= 9 && 4 <= a10)) || !(9 <= \old(a19))) || !(0 == a12)) || (a19 <= 9 && a10 <= 2)) || !(14 == a4)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 376.6s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 333.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 821 SDtfs, 3529 SDslu, 365 SDs, 0 SdLazy, 7928 SolverSat, 1389 SolverUnsat, 110 SolverUnknown, 0 SolverNotchecked, 260.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3589 GetRequests, 3500 SyntacticMatches, 14 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 100.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2678occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 1168 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 113 PreInvPairs, 157 NumberOfFragments, 337 HoareAnnotationTreeSize, 113 FomulaSimplifications, 6793 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5341 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 38.7s InterpolantComputationTime, 2370 NumberOfCodeBlocks, 2119 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 3127 ConstructedInterpolants, 12 QuantifiedInterpolants, 2880395 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3821 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 2106/2196 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...