/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --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/Problem02_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:28:33,698 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 17:28:33,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:28:33,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:28:33,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:28:33,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:28:33,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:28:33,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:28:33,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:28:33,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:28:33,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:28:33,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:28:33,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:28:33,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:28:33,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:28:33,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:28:33,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:28:33,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:28:33,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:28:33,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:28:33,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:28:33,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:28:33,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:28:33,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:28:33,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:28:33,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:28:33,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:28:33,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:28:33,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:28:33,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:28:33,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:28:33,829 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:28:33,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:28:33,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:28:33,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:28:33,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:28:33,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:28:33,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:28:33,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:28:33,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:28:33,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:28:33,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:28:33,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:28:33,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:28:33,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:28:33,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:28:33,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:28:33,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:28:33,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:28:33,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:28:33,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:28:33,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:28:33,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:28:33,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:33,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:28:33,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:28:33,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:28:34,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:28:34,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:28:34,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:28:34,167 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:28:34,168 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:28:34,169 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-20 17:28:34,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3eff0be/2eb37c8e4f3d455496d99147c3c9ef2a/FLAGb0192b2ca [2020-07-20 17:28:34,886 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:28:34,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-20 17:28:34,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3eff0be/2eb37c8e4f3d455496d99147c3c9ef2a/FLAGb0192b2ca [2020-07-20 17:28:35,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3eff0be/2eb37c8e4f3d455496d99147c3c9ef2a [2020-07-20 17:28:35,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:28:35,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:28:35,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:28:35,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:28:35,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:28:35,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:35,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27edf361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35, skipping insertion in model container [2020-07-20 17:28:35,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:35,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:28:35,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:28:35,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:28:35,639 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:28:35,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:28:35,908 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:28:35,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35 WrapperNode [2020-07-20 17:28:35,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:28:35,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:28:35,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:28:35,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:28:35,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:35,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:35,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:35,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:35,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:36,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:36,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... [2020-07-20 17:28:36,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:28:36,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:28:36,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:28:36,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:28:36,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:28:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:28:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:28:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:28:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:28:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:28:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:28:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:28:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:28:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:28:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:28:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:28:37,255 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:28:37,256 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:28:37,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:37 BoogieIcfgContainer [2020-07-20 17:28:37,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:28:37,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:28:37,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:28:37,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:28:37,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:28:35" (1/3) ... [2020-07-20 17:28:37,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc3f62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:37, skipping insertion in model container [2020-07-20 17:28:37,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:35" (2/3) ... [2020-07-20 17:28:37,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc3f62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:37, skipping insertion in model container [2020-07-20 17:28:37,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:37" (3/3) ... [2020-07-20 17:28:37,271 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2020-07-20 17:28:37,282 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:28:37,291 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:28:37,307 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:28:37,336 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:28:37,336 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:28:37,337 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:28:37,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:28:37,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:28:37,337 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:28:37,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:28:37,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:28:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:28:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-20 17:28:37,379 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:37,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:37,381 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:37,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1666327721, now seen corresponding path program 1 times [2020-07-20 17:28:37,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:37,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600742601] [2020-07-20 17:28:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:37,631 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:37,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:37,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:28:37,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:37,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:37,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600742601] [2020-07-20 17:28:37,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:37,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:37,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492622570] [2020-07-20 17:28:37,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:37,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:37,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:37,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:37,818 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:28:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:38,806 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 17:28:38,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:38,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-20 17:28:38,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:38,843 INFO L225 Difference]: With dead ends: 619 [2020-07-20 17:28:38,843 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 17:28:38,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 17:28:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 17:28:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 17:28:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 17:28:38,938 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 111 [2020-07-20 17:28:38,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:38,940 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 17:28:38,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:38,941 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 17:28:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 17:28:38,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:38,954 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:39,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:39,168 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:39,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:39,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1096762264, now seen corresponding path program 1 times [2020-07-20 17:28:39,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:39,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798177067] [2020-07-20 17:28:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:39,269 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:39,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:39,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 17:28:39,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 17:28:39,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 17:28:39,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798177067] [2020-07-20 17:28:39,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 17:28:39,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 17:28:39,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624903830] [2020-07-20 17:28:39,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 17:28:39,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:39,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 17:28:39,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:39,443 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-20 17:28:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:40,143 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-20 17:28:40,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 17:28:40,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-07-20 17:28:40,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:40,151 INFO L225 Difference]: With dead ends: 941 [2020-07-20 17:28:40,152 INFO L226 Difference]: Without dead ends: 628 [2020-07-20 17:28:40,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:40,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-20 17:28:40,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-20 17:28:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 17:28:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-20 17:28:40,198 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 120 [2020-07-20 17:28:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:40,199 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-20 17:28:40,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 17:28:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-20 17:28:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 17:28:40,203 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:40,203 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:40,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:40,414 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:40,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:40,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1858974237, now seen corresponding path program 1 times [2020-07-20 17:28:40,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:40,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097852404] [2020-07-20 17:28:40,417 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:40,528 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:40,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:40,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:40,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 17:28:40,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:40,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097852404] [2020-07-20 17:28:40,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:40,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:40,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349641101] [2020-07-20 17:28:40,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:40,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:40,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:40,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:40,601 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-20 17:28:41,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:41,276 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-20 17:28:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:41,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-20 17:28:41,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:41,284 INFO L225 Difference]: With dead ends: 1543 [2020-07-20 17:28:41,285 INFO L226 Difference]: Without dead ends: 921 [2020-07-20 17:28:41,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-20 17:28:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-20 17:28:41,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-20 17:28:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-20 17:28:41,337 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 128 [2020-07-20 17:28:41,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:41,337 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-20 17:28:41,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:41,338 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-20 17:28:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-20 17:28:41,341 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:41,341 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:41,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:41,556 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:41,557 INFO L82 PathProgramCache]: Analyzing trace with hash 459938663, now seen corresponding path program 1 times [2020-07-20 17:28:41,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:41,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860303119] [2020-07-20 17:28:41,559 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:41,652 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:41,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:41,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:28:41,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 17:28:41,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 17:28:41,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860303119] [2020-07-20 17:28:41,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:41,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 17:28:41,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884024797] [2020-07-20 17:28:41,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:28:41,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:41,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:28:41,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:41,781 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-20 17:28:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:42,627 INFO L93 Difference]: Finished difference Result 2773 states and 3861 transitions. [2020-07-20 17:28:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:28:42,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-07-20 17:28:42,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:42,647 INFO L225 Difference]: With dead ends: 2773 [2020-07-20 17:28:42,647 INFO L226 Difference]: Without dead ends: 1860 [2020-07-20 17:28:42,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 262 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:42,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-07-20 17:28:42,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1828. [2020-07-20 17:28:42,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-07-20 17:28:42,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2448 transitions. [2020-07-20 17:28:42,755 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2448 transitions. Word has length 134 [2020-07-20 17:28:42,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:42,757 INFO L479 AbstractCegarLoop]: Abstraction has 1828 states and 2448 transitions. [2020-07-20 17:28:42,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:28:42,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2448 transitions. [2020-07-20 17:28:42,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 17:28:42,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:42,769 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:42,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:42,983 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:42,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:42,984 INFO L82 PathProgramCache]: Analyzing trace with hash 349804708, now seen corresponding path program 2 times [2020-07-20 17:28:42,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:42,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281161001] [2020-07-20 17:28:42,986 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:43,097 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:43,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:43,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:43,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 17:28:43,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 17:28:43,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281161001] [2020-07-20 17:28:43,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:43,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:43,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577094529] [2020-07-20 17:28:43,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:43,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:43,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:43,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:43,221 INFO L87 Difference]: Start difference. First operand 1828 states and 2448 transitions. Second operand 7 states. [2020-07-20 17:28:44,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:44,766 INFO L93 Difference]: Finished difference Result 4385 states and 6475 transitions. [2020-07-20 17:28:44,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 17:28:44,766 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-20 17:28:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:44,784 INFO L225 Difference]: With dead ends: 4385 [2020-07-20 17:28:44,785 INFO L226 Difference]: Without dead ends: 2563 [2020-07-20 17:28:44,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-20 17:28:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2020-07-20 17:28:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2468. [2020-07-20 17:28:44,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2468 states. [2020-07-20 17:28:44,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3122 transitions. [2020-07-20 17:28:44,870 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3122 transitions. Word has length 137 [2020-07-20 17:28:44,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:44,871 INFO L479 AbstractCegarLoop]: Abstraction has 2468 states and 3122 transitions. [2020-07-20 17:28:44,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:44,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3122 transitions. [2020-07-20 17:28:44,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 17:28:44,877 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:44,877 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:45,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:45,091 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:45,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:45,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1845831279, now seen corresponding path program 1 times [2020-07-20 17:28:45,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:45,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812259603] [2020-07-20 17:28:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:45,222 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:45,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:45,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:45,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 17:28:45,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:45,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812259603] [2020-07-20 17:28:45,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:45,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:45,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895577999] [2020-07-20 17:28:45,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:45,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:45,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:45,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:45,257 INFO L87 Difference]: Start difference. First operand 2468 states and 3122 transitions. Second operand 3 states. [2020-07-20 17:28:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:45,832 INFO L93 Difference]: Finished difference Result 5522 states and 7106 transitions. [2020-07-20 17:28:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:45,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-20 17:28:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:45,849 INFO L225 Difference]: With dead ends: 5522 [2020-07-20 17:28:45,849 INFO L226 Difference]: Without dead ends: 3060 [2020-07-20 17:28:45,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:45,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-07-20 17:28:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3054. [2020-07-20 17:28:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2020-07-20 17:28:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3801 transitions. [2020-07-20 17:28:45,942 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3801 transitions. Word has length 138 [2020-07-20 17:28:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:45,943 INFO L479 AbstractCegarLoop]: Abstraction has 3054 states and 3801 transitions. [2020-07-20 17:28:45,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3801 transitions. [2020-07-20 17:28:45,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 17:28:45,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:45,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:46,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:46,166 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:46,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:46,167 INFO L82 PathProgramCache]: Analyzing trace with hash -161267733, now seen corresponding path program 1 times [2020-07-20 17:28:46,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:46,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425469043] [2020-07-20 17:28:46,168 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:46,270 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:46,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:46,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:28:46,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:46,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:46,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425469043] [2020-07-20 17:28:46,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:46,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:28:46,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417731360] [2020-07-20 17:28:46,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:28:46,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:46,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:28:46,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:46,363 INFO L87 Difference]: Start difference. First operand 3054 states and 3801 transitions. Second operand 5 states. [2020-07-20 17:28:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:47,231 INFO L93 Difference]: Finished difference Result 8247 states and 10820 transitions. [2020-07-20 17:28:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:47,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-07-20 17:28:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:47,254 INFO L225 Difference]: With dead ends: 8247 [2020-07-20 17:28:47,255 INFO L226 Difference]: Without dead ends: 5199 [2020-07-20 17:28:47,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:28:47,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2020-07-20 17:28:47,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5127. [2020-07-20 17:28:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5127 states. [2020-07-20 17:28:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6247 transitions. [2020-07-20 17:28:47,405 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6247 transitions. Word has length 142 [2020-07-20 17:28:47,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:47,406 INFO L479 AbstractCegarLoop]: Abstraction has 5127 states and 6247 transitions. [2020-07-20 17:28:47,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:28:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6247 transitions. [2020-07-20 17:28:47,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-20 17:28:47,421 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:47,421 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-07-20 17:28:47,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:47,635 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:47,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:47,635 INFO L82 PathProgramCache]: Analyzing trace with hash 455788955, now seen corresponding path program 1 times [2020-07-20 17:28:47,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:47,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766028856] [2020-07-20 17:28:47,636 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:47,765 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:47,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:47,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:47,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 17:28:47,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 17:28:47,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766028856] [2020-07-20 17:28:47,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:47,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:47,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057193559] [2020-07-20 17:28:47,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:47,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:47,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:47,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:47,970 INFO L87 Difference]: Start difference. First operand 5127 states and 6247 transitions. Second operand 6 states. [2020-07-20 17:28:48,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:48,516 INFO L93 Difference]: Finished difference Result 9839 states and 12352 transitions. [2020-07-20 17:28:48,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:28:48,516 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2020-07-20 17:28:48,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:48,538 INFO L225 Difference]: With dead ends: 9839 [2020-07-20 17:28:48,538 INFO L226 Difference]: Without dead ends: 4718 [2020-07-20 17:28:48,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2020-07-20 17:28:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4652. [2020-07-20 17:28:48,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-07-20 17:28:48,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 5508 transitions. [2020-07-20 17:28:48,674 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 5508 transitions. Word has length 211 [2020-07-20 17:28:48,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:48,674 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 5508 transitions. [2020-07-20 17:28:48,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:48,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 5508 transitions. [2020-07-20 17:28:48,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-20 17:28:48,693 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:48,693 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:48,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:48,907 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:48,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:48,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1716455552, now seen corresponding path program 1 times [2020-07-20 17:28:48,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:48,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751596891] [2020-07-20 17:28:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:49,125 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:49,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:49,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:49,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-07-20 17:28:49,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 133 proven. 54 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 17:28:49,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751596891] [2020-07-20 17:28:49,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:49,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:49,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539805622] [2020-07-20 17:28:49,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:49,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:49,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:49,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:49,306 INFO L87 Difference]: Start difference. First operand 4652 states and 5508 transitions. Second operand 6 states. [2020-07-20 17:28:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:50,133 INFO L93 Difference]: Finished difference Result 8881 states and 10565 transitions. [2020-07-20 17:28:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:50,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-07-20 17:28:50,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:50,150 INFO L225 Difference]: With dead ends: 8881 [2020-07-20 17:28:50,150 INFO L226 Difference]: Without dead ends: 4379 [2020-07-20 17:28:50,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:50,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2020-07-20 17:28:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4375. [2020-07-20 17:28:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2020-07-20 17:28:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5103 transitions. [2020-07-20 17:28:50,252 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5103 transitions. Word has length 241 [2020-07-20 17:28:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:50,253 INFO L479 AbstractCegarLoop]: Abstraction has 4375 states and 5103 transitions. [2020-07-20 17:28:50,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5103 transitions. [2020-07-20 17:28:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-07-20 17:28:50,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:50,268 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:50,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:50,483 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:50,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:50,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1657714952, now seen corresponding path program 1 times [2020-07-20 17:28:50,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:50,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377197033] [2020-07-20 17:28:50,485 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 [2020-07-20 17:28:50,648 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:50,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:50,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:50,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:50,738 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 17:28:50,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:50,870 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-20 17:28:50,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377197033] [2020-07-20 17:28:50,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:50,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:50,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448231943] [2020-07-20 17:28:50,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:50,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:50,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:50,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:50,874 INFO L87 Difference]: Start difference. First operand 4375 states and 5103 transitions. Second operand 7 states. [2020-07-20 17:28:52,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:52,166 INFO L93 Difference]: Finished difference Result 10612 states and 12330 transitions. [2020-07-20 17:28:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:52,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-07-20 17:28:52,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:52,200 INFO L225 Difference]: With dead ends: 10612 [2020-07-20 17:28:52,200 INFO L226 Difference]: Without dead ends: 6387 [2020-07-20 17:28:52,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:52,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2020-07-20 17:28:52,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 6097. [2020-07-20 17:28:52,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6097 states. [2020-07-20 17:28:52,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6097 states to 6097 states and 6840 transitions. [2020-07-20 17:28:52,342 INFO L78 Accepts]: Start accepts. Automaton has 6097 states and 6840 transitions. Word has length 245 [2020-07-20 17:28:52,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:52,343 INFO L479 AbstractCegarLoop]: Abstraction has 6097 states and 6840 transitions. [2020-07-20 17:28:52,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:52,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6097 states and 6840 transitions. [2020-07-20 17:28:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-20 17:28:52,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:52,361 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:52,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:52,576 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:52,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:52,576 INFO L82 PathProgramCache]: Analyzing trace with hash -186224720, now seen corresponding path program 1 times [2020-07-20 17:28:52,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:52,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021617298] [2020-07-20 17:28:52,577 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 [2020-07-20 17:28:52,733 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:52,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:52,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:52,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 17:28:52,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:52,938 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 186 proven. 36 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-20 17:28:52,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021617298] [2020-07-20 17:28:52,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:52,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:52,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971126689] [2020-07-20 17:28:52,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:52,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:52,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:52,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:52,941 INFO L87 Difference]: Start difference. First operand 6097 states and 6840 transitions. Second operand 7 states. [2020-07-20 17:28:54,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:54,167 INFO L93 Difference]: Finished difference Result 11181 states and 12535 transitions. [2020-07-20 17:28:54,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:28:54,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-07-20 17:28:54,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:54,185 INFO L225 Difference]: With dead ends: 11181 [2020-07-20 17:28:54,186 INFO L226 Difference]: Without dead ends: 5503 [2020-07-20 17:28:54,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 499 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-07-20 17:28:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5497. [2020-07-20 17:28:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5497 states. [2020-07-20 17:28:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6061 transitions. [2020-07-20 17:28:54,291 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6061 transitions. Word has length 252 [2020-07-20 17:28:54,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:54,291 INFO L479 AbstractCegarLoop]: Abstraction has 5497 states and 6061 transitions. [2020-07-20 17:28:54,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:54,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6061 transitions. [2020-07-20 17:28:54,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-20 17:28:54,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:54,310 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:28:54,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:54,523 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:54,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:54,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1332464188, now seen corresponding path program 1 times [2020-07-20 17:28:54,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:54,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7568396] [2020-07-20 17:28:54,525 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:54,742 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:54,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:54,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:28:54,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-20 17:28:54,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-20 17:28:54,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7568396] [2020-07-20 17:28:54,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:54,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:54,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737658376] [2020-07-20 17:28:54,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:54,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:54,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:54,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:54,988 INFO L87 Difference]: Start difference. First operand 5497 states and 6061 transitions. Second operand 7 states. [2020-07-20 17:28:56,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:56,078 INFO L93 Difference]: Finished difference Result 10238 states and 11289 transitions. [2020-07-20 17:28:56,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:28:56,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 277 [2020-07-20 17:28:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:56,079 INFO L225 Difference]: With dead ends: 10238 [2020-07-20 17:28:56,079 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:28:56,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:56,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:28:56,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:28:56,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:28:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:28:56,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 277 [2020-07-20 17:28:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:56,097 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:28:56,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:56,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:28:56,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:28:56,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:56,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:28:56,877 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-20 17:28:57,096 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-20 17:28:58,800 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 157 DAG size of output: 82 [2020-07-20 17:28:59,538 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-20 17:29:00,302 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-20 17:29:00,306 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,307 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 17:29:00,307 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,307 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,307 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,307 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,308 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,308 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,308 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:29:00,308 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:29:00,308 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:29:00,308 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,309 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:29:00,310 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:29:00,311 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 487) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:29:00,312 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:29:00,313 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:29:00,313 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:29:00,313 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:29:00,313 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:29:00,313 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:29:00,313 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:29:00,313 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:29:00,314 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:29:00,315 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,316 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:29:00,317 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:29:00,318 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,319 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:29:00,320 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:29:00,321 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:29:00,322 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,323 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:29:00,324 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:29:00,325 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:29:00,326 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,326 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,326 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,326 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse25 (<= ~a11~0 0))) (let ((.cse18 (= 1 ~a25~0)) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse22 (or .cse25 (< 0 |old(~a11~0)|))) (.cse23 (<= ~a25~0 |old(~a25~0)|)) (.cse26 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (<= ~a17~0 8)) (.cse14 (<= 8 ~a17~0)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse17 (<= |old(~a28~0)| ~a28~0)) (.cse27 (= ~a25~0 |old(~a25~0)|))) (let ((.cse9 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse27)) (.cse1 (and .cse21 .cse26 .cse22 .cse23 .cse16 .cse17)) (.cse19 (and .cse25 .cse26 .cse13 .cse14 .cse16 .cse17 .cse18)) (.cse5 (not (<= |old(~a17~0)| 7))) (.cse24 (<= ~a28~0 9)) (.cse12 (not (= 1 |old(~a25~0)|))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse2 (not (<= |old(~a28~0)| 10))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse15 (<= ~a28~0 10)) (.cse6 (not (<= |old(~a28~0)| 9))) (.cse7 (not (<= 8 |old(~a17~0)|))) (.cse4 (not (<= |old(~a25~0)| 0))) (.cse8 (not (<= |old(~a19~0)| 0))) (.cse10 (not (<= |old(~a17~0)| 8))) (.cse20 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse4 .cse8 .cse9 .cse10) (or .cse11 .cse7 .cse8 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse7 .cse12 .cse10 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse0 .cse1 .cse11 .cse5) (or .cse0 .cse7 .cse12 .cse19 .cse10 .cse20) (or .cse2 .cse3 .cse4 .cse8 .cse5 (and .cse21 .cse22 .cse15 .cse23 .cse16 .cse17)) (or .cse2 .cse3 .cse7 .cse12 .cse8 .cse19 .cse10 .cse20) (or .cse0 .cse3 .cse6 .cse4 .cse24 .cse10) (or .cse0 .cse11 .cse4 (and .cse25 .cse26 .cse13 .cse16 .cse17 .cse27) .cse10 .cse20) (or .cse0 .cse11 .cse7 .cse12 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse18) .cse10) (or .cse3 .cse6 .cse8 .cse5 (and .cse21 .cse22 .cse24 .cse23 .cse16 .cse17)) (or .cse0 .cse3 .cse6 .cse24 .cse7 .cse12 .cse10) (or .cse25 .cse11 .cse7 .cse8 .cse10 .cse20) (or .cse0 .cse2 .cse3 .cse7 .cse4 (and .cse22 .cse13 .cse14 .cse15 .cse16 .cse17 .cse27) .cse10) (or .cse25 .cse6 .cse7 .cse4 .cse8 .cse10 .cse20))))) [2020-07-20 17:29:00,326 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:29:00,327 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,328 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:29:00,329 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:29:00,330 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:29:00,331 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:29:00,332 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:29:00,333 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,334 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 17:29:00,334 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:29:00,334 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,334 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 17:29:00,334 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-20 17:29:00,334 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:29:00,335 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:29:00,335 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-20 17:29:00,335 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:29:00,335 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:29:00,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:29:00 BoogieIcfgContainer [2020-07-20 17:29:00,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:29:00,373 INFO L168 Benchmark]: Toolchain (without parser) took 25245.41 ms. Allocated memory was 141.6 MB in the beginning and 647.0 MB in the end (delta: 505.4 MB). Free memory was 101.2 MB in the beginning and 513.5 MB in the end (delta: -412.3 MB). Peak memory consumption was 534.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,374 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 141.6 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.38 ms. Allocated memory was 141.6 MB in the beginning and 206.6 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 173.7 MB in the end (delta: -72.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,375 INFO L168 Benchmark]: Boogie Preprocessor took 104.57 ms. Allocated memory is still 206.6 MB. Free memory was 173.7 MB in the beginning and 168.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,376 INFO L168 Benchmark]: RCFGBuilder took 1247.48 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 168.9 MB in the beginning and 185.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,377 INFO L168 Benchmark]: TraceAbstraction took 23103.41 ms. Allocated memory was 240.6 MB in the beginning and 647.0 MB in the end (delta: 406.3 MB). Free memory was 183.6 MB in the beginning and 513.5 MB in the end (delta: -329.9 MB). Peak memory consumption was 517.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,380 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 141.6 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.38 ms. Allocated memory was 141.6 MB in the beginning and 206.6 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 173.7 MB in the end (delta: -72.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.57 ms. Allocated memory is still 206.6 MB. Free memory was 173.7 MB in the beginning and 168.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1247.48 ms. Allocated memory was 206.6 MB in the beginning and 240.6 MB in the end (delta: 34.1 MB). Free memory was 168.9 MB in the beginning and 185.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23103.41 ms. Allocated memory was 240.6 MB in the beginning and 647.0 MB in the end (delta: 406.3 MB). Free memory was 183.6 MB in the beginning and 513.5 MB in the end (delta: -329.9 MB). Peak memory consumption was 517.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 487]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a19)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || ((((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && a19 <= 0) && 9 <= a28)) || !(\old(a11) <= 0)) || ((((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && 9 <= a28) && a19 <= 0) && 1 == a25)) || !(\old(a25) <= 0)) || ((((1 == a19 && a17 <= 8) && a17 <= 7) && 7 < \old(a17)) && a28 <= 7)) || (((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 7 < \old(a17)) && 9 <= a28)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.9s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 977 SDtfs, 5524 SDslu, 662 SDs, 0 SdLazy, 8262 SolverSat, 1178 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3774 GetRequests, 3702 SyntacticMatches, 14 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6097occurred 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: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 575 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 266 PreInvPairs, 342 NumberOfFragments, 1130 HoareAnnotationTreeSize, 266 FomulaSimplifications, 8585 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4842 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2136 NumberOfCodeBlocks, 2136 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3733 ConstructedInterpolants, 0 QuantifiedInterpolants, 1402655 SizeOfPredicates, 15 NumberOfNonLiveVariables, 5517 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 2597/2863 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...