/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:23:14,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:23:14,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:23:14,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:23:14,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:23:14,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:23:14,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:23:14,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:23:14,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:23:14,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:23:14,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:23:14,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:23:14,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:23:14,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:23:14,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:23:14,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:23:14,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:23:14,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:23:14,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:23:14,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:23:14,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:23:14,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:23:14,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:23:14,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:23:14,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:23:14,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:23:14,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:23:14,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:23:14,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:23:14,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:23:14,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:23:14,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:23:14,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:23:14,956 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:23:14,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:23:14,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:23:14,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:23:14,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:23:14,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:23:14,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:23:14,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:23:14,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:23:14,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:23:14,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:23:14,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:23:14,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:23:14,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:23:14,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:23:14,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:23:14,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:23:14,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:23:14,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:23:14,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:23:14,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:23:14,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:23:14,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:14,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:23:14,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:23:14,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:23:15,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:23:15,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:23:15,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:23:15,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:23:15,342 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:23:15,342 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-07-21 01:23:15,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeeccd8ea/a22f1e2f469043e09bebd08fba14378a/FLAG21777197b [2020-07-21 01:23:16,030 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:23:16,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-07-21 01:23:16,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeeccd8ea/a22f1e2f469043e09bebd08fba14378a/FLAG21777197b [2020-07-21 01:23:16,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeeccd8ea/a22f1e2f469043e09bebd08fba14378a [2020-07-21 01:23:16,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:23:16,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:23:16,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:16,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:23:16,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:23:16,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:16" (1/1) ... [2020-07-21 01:23:16,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28715b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:16, skipping insertion in model container [2020-07-21 01:23:16,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:16" (1/1) ... [2020-07-21 01:23:16,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:23:16,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:23:16,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:16,746 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:23:16,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:17,001 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:23:17,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17 WrapperNode [2020-07-21 01:23:17,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:17,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:23:17,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:23:17,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:23:17,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... [2020-07-21 01:23:17,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... [2020-07-21 01:23:17,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... [2020-07-21 01:23:17,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... [2020-07-21 01:23:17,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... [2020-07-21 01:23:17,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... [2020-07-21 01:23:17,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... [2020-07-21 01:23:17,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:23:17,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:23:17,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:23:17,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:23:17,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:23:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:23:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:23:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:23:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:23:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:23:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:23:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:23:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:23:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:23:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:23:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:23:18,357 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:23:18,357 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:23:18,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:18 BoogieIcfgContainer [2020-07-21 01:23:18,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:23:18,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:23:18,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:23:18,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:23:18,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:23:16" (1/3) ... [2020-07-21 01:23:18,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b89d19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:18, skipping insertion in model container [2020-07-21 01:23:18,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:17" (2/3) ... [2020-07-21 01:23:18,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b89d19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:18, skipping insertion in model container [2020-07-21 01:23:18,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:18" (3/3) ... [2020-07-21 01:23:18,372 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label04.c [2020-07-21 01:23:18,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:23:18,393 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:23:18,411 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:23:18,440 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:23:18,440 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:23:18,440 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:23:18,440 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:23:18,441 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:23:18,441 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:23:18,441 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:23:18,441 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:23:18,466 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:23:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-21 01:23:18,480 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:18,481 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, 1] [2020-07-21 01:23:18,481 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:18,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash 116556406, now seen corresponding path program 1 times [2020-07-21 01:23:18,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:18,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257529501] [2020-07-21 01:23:18,498 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:18,690 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:18,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:18,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:23:18,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:19,265 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:19,270 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:23:19,270 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:23:19,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:19,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:19,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257529501] [2020-07-21 01:23:19,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:19,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:23:19,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459591685] [2020-07-21 01:23:19,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:23:19,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:19,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:23:19,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:23:19,376 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:23:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:20,698 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:23:20,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:23:20,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 112 [2020-07-21 01:23:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:20,721 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:23:20,721 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:23:20,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:23:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:23:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:23:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:23:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:23:20,815 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 112 [2020-07-21 01:23:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:20,815 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:23:20,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:23:20,816 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:23:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 01:23:20,820 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:20,820 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, 1] [2020-07-21 01:23:21,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:21,034 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:21,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:21,035 INFO L82 PathProgramCache]: Analyzing trace with hash -360103577, now seen corresponding path program 1 times [2020-07-21 01:23:21,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:21,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401695827] [2020-07-21 01:23:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:21,171 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:21,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:21,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:23:21,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:21,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:22,146 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:23:22,148 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:23:22,149 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:23:22,152 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:23:22,156 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:23:22,183 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:23:22,184 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:23:22,218 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:22,291 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:22,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401695827] [2020-07-21 01:23:22,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:22,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:23:22,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902212607] [2020-07-21 01:23:22,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:23:22,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:22,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:23:22,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:23:22,415 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:23:23,468 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:23:24,622 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:23:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:26,150 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:23:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:23:26,151 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 121 [2020-07-21 01:23:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:26,159 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:23:26,160 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:23:26,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 219 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:23:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:23:26,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:23:26,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:23:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:23:26,198 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 121 [2020-07-21 01:23:26,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:26,198 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:23:26,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:23:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:23:26,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 01:23:26,202 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:26,203 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-07-21 01:23:26,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:26,409 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:26,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:26,410 INFO L82 PathProgramCache]: Analyzing trace with hash 2056155642, now seen corresponding path program 1 times [2020-07-21 01:23:26,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:26,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669907675] [2020-07-21 01:23:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:26,506 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:23:26,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:26,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:23:26,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:26,532 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:23:26,533 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:26,565 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:26,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:26,684 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:26,685 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:26,712 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:26,767 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:26,776 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:26,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669907675] [2020-07-21 01:23:26,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:26,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:26,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247527541] [2020-07-21 01:23:26,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:26,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:26,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:26,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:26,796 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:23:28,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:28,682 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:23:28,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:23:28,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-07-21 01:23:28,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:28,691 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:23:28,691 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:23:28,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:23:28,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:23:28,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:23:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:23:28,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1272 transitions. [2020-07-21 01:23:28,758 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1272 transitions. Word has length 133 [2020-07-21 01:23:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:28,759 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1272 transitions. [2020-07-21 01:23:28,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:28,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1272 transitions. [2020-07-21 01:23:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 01:23:28,765 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:28,766 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:28,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:28,969 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash 551640631, now seen corresponding path program 1 times [2020-07-21 01:23:28,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:28,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006364197] [2020-07-21 01:23:28,971 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:29,113 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:29,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:29,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:29,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:29,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:29,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006364197] [2020-07-21 01:23:29,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:29,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:29,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55836858] [2020-07-21 01:23:29,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:29,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:29,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:29,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:29,189 INFO L87 Difference]: Start difference. First operand 1015 states and 1272 transitions. Second operand 3 states. [2020-07-21 01:23:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:29,819 INFO L93 Difference]: Finished difference Result 2323 states and 2938 transitions. [2020-07-21 01:23:29,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:29,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-07-21 01:23:29,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:29,833 INFO L225 Difference]: With dead ends: 2323 [2020-07-21 01:23:29,834 INFO L226 Difference]: Without dead ends: 1314 [2020-07-21 01:23:29,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-07-21 01:23:29,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-07-21 01:23:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-07-21 01:23:29,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1639 transitions. [2020-07-21 01:23:29,912 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1639 transitions. Word has length 147 [2020-07-21 01:23:29,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:29,913 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 1639 transitions. [2020-07-21 01:23:29,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:29,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1639 transitions. [2020-07-21 01:23:29,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 01:23:29,925 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:29,925 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:30,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:30,141 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:30,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:30,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1443602449, now seen corresponding path program 1 times [2020-07-21 01:23:30,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:30,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029435588] [2020-07-21 01:23:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:30,264 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:30,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:30,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:30,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:23:30,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:30,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029435588] [2020-07-21 01:23:30,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:30,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:30,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560307767] [2020-07-21 01:23:30,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:30,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:30,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:30,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:30,309 INFO L87 Difference]: Start difference. First operand 1314 states and 1639 transitions. Second operand 3 states. [2020-07-21 01:23:31,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:31,066 INFO L93 Difference]: Finished difference Result 3498 states and 4468 transitions. [2020-07-21 01:23:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:31,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-21 01:23:31,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:31,083 INFO L225 Difference]: With dead ends: 3498 [2020-07-21 01:23:31,083 INFO L226 Difference]: Without dead ends: 2190 [2020-07-21 01:23:31,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:31,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2020-07-21 01:23:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2043. [2020-07-21 01:23:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2020-07-21 01:23:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2601 transitions. [2020-07-21 01:23:31,176 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2601 transitions. Word has length 154 [2020-07-21 01:23:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:31,178 INFO L479 AbstractCegarLoop]: Abstraction has 2043 states and 2601 transitions. [2020-07-21 01:23:31,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2601 transitions. [2020-07-21 01:23:31,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 01:23:31,185 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:31,193 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:31,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:31,407 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:31,408 INFO L82 PathProgramCache]: Analyzing trace with hash -578387322, now seen corresponding path program 1 times [2020-07-21 01:23:31,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:31,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140381414] [2020-07-21 01:23:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:31,530 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:31,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:31,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:31,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:31,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:31,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140381414] [2020-07-21 01:23:31,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:31,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:23:31,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024020159] [2020-07-21 01:23:31,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:23:31,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:31,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:23:31,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:23:31,653 INFO L87 Difference]: Start difference. First operand 2043 states and 2601 transitions. Second operand 6 states. [2020-07-21 01:23:32,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:32,523 INFO L93 Difference]: Finished difference Result 5186 states and 7186 transitions. [2020-07-21 01:23:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:32,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-07-21 01:23:32,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:32,545 INFO L225 Difference]: With dead ends: 5186 [2020-07-21 01:23:32,546 INFO L226 Difference]: Without dead ends: 3149 [2020-07-21 01:23:32,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2020-07-21 01:23:32,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2805. [2020-07-21 01:23:32,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2805 states. [2020-07-21 01:23:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3617 transitions. [2020-07-21 01:23:32,655 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3617 transitions. Word has length 172 [2020-07-21 01:23:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:32,656 INFO L479 AbstractCegarLoop]: Abstraction has 2805 states and 3617 transitions. [2020-07-21 01:23:32,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:23:32,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3617 transitions. [2020-07-21 01:23:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 01:23:32,664 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:32,665 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:32,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:32,878 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:32,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:32,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1603998347, now seen corresponding path program 1 times [2020-07-21 01:23:32,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:32,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120833270] [2020-07-21 01:23:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:32,991 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:32,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:32,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:32,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:33,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:33,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120833270] [2020-07-21 01:23:33,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:33,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:23:33,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236045885] [2020-07-21 01:23:33,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:23:33,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:33,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:23:33,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:23:33,121 INFO L87 Difference]: Start difference. First operand 2805 states and 3617 transitions. Second operand 6 states. [2020-07-21 01:23:34,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:34,268 INFO L93 Difference]: Finished difference Result 6061 states and 7821 transitions. [2020-07-21 01:23:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:23:34,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 01:23:34,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:34,282 INFO L225 Difference]: With dead ends: 6061 [2020-07-21 01:23:34,282 INFO L226 Difference]: Without dead ends: 2525 [2020-07-21 01:23:34,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:34,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2020-07-21 01:23:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2374. [2020-07-21 01:23:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2374 states. [2020-07-21 01:23:34,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 2905 transitions. [2020-07-21 01:23:34,354 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 2905 transitions. Word has length 182 [2020-07-21 01:23:34,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:34,354 INFO L479 AbstractCegarLoop]: Abstraction has 2374 states and 2905 transitions. [2020-07-21 01:23:34,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:23:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 2905 transitions. [2020-07-21 01:23:34,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 01:23:34,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:34,362 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:34,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:34,577 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:34,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:34,577 INFO L82 PathProgramCache]: Analyzing trace with hash 252543852, now seen corresponding path program 1 times [2020-07-21 01:23:34,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:34,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868693911] [2020-07-21 01:23:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:34,683 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:34,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:34,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:34,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:34,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:34,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868693911] [2020-07-21 01:23:34,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:34,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:34,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038541650] [2020-07-21 01:23:34,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:34,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:34,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:34,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:34,811 INFO L87 Difference]: Start difference. First operand 2374 states and 2905 transitions. Second operand 7 states. [2020-07-21 01:23:36,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:36,054 INFO L93 Difference]: Finished difference Result 4897 states and 6006 transitions. [2020-07-21 01:23:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:23:36,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-21 01:23:36,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:36,068 INFO L225 Difference]: With dead ends: 4897 [2020-07-21 01:23:36,068 INFO L226 Difference]: Without dead ends: 2371 [2020-07-21 01:23:36,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:23:36,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2020-07-21 01:23:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2355. [2020-07-21 01:23:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2355 states. [2020-07-21 01:23:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 2625 transitions. [2020-07-21 01:23:36,129 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 2625 transitions. Word has length 181 [2020-07-21 01:23:36,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:36,130 INFO L479 AbstractCegarLoop]: Abstraction has 2355 states and 2625 transitions. [2020-07-21 01:23:36,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 2625 transitions. [2020-07-21 01:23:36,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 01:23:36,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:36,138 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 01:23:36,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:36,352 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:36,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:36,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1614354183, now seen corresponding path program 1 times [2020-07-21 01:23:36,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:36,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639602210] [2020-07-21 01:23:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:36,470 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:36,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:36,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:23:36,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 01:23:36,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 128 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 01:23:36,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639602210] [2020-07-21 01:23:36,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:36,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:36,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965842558] [2020-07-21 01:23:36,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:36,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:36,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:36,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:36,703 INFO L87 Difference]: Start difference. First operand 2355 states and 2625 transitions. Second operand 7 states. [2020-07-21 01:23:37,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:37,320 INFO L93 Difference]: Finished difference Result 4377 states and 4892 transitions. [2020-07-21 01:23:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:37,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-07-21 01:23:37,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:37,334 INFO L225 Difference]: With dead ends: 4377 [2020-07-21 01:23:37,334 INFO L226 Difference]: Without dead ends: 2028 [2020-07-21 01:23:37,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2020-07-21 01:23:37,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1880. [2020-07-21 01:23:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1880 states. [2020-07-21 01:23:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2060 transitions. [2020-07-21 01:23:37,381 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2060 transitions. Word has length 212 [2020-07-21 01:23:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:37,381 INFO L479 AbstractCegarLoop]: Abstraction has 1880 states and 2060 transitions. [2020-07-21 01:23:37,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2060 transitions. [2020-07-21 01:23:37,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-07-21 01:23:37,387 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:37,388 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:23:37,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:37,603 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:37,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:37,604 INFO L82 PathProgramCache]: Analyzing trace with hash -289838194, now seen corresponding path program 1 times [2020-07-21 01:23:37,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:37,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698187024] [2020-07-21 01:23:37,605 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:37,750 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:37,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:37,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:37,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:23:37,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:37,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698187024] [2020-07-21 01:23:37,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:37,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:37,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949710446] [2020-07-21 01:23:37,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:37,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:37,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:37,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:37,795 INFO L87 Difference]: Start difference. First operand 1880 states and 2060 transitions. Second operand 3 states. [2020-07-21 01:23:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:38,288 INFO L93 Difference]: Finished difference Result 3694 states and 4055 transitions. [2020-07-21 01:23:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:38,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-07-21 01:23:38,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:38,290 INFO L225 Difference]: With dead ends: 3694 [2020-07-21 01:23:38,291 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:23:38,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:38,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:23:38,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:23:38,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:23:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:23:38,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2020-07-21 01:23:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:38,302 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:23:38,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:23:38,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:23:38,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:38,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:23:40,152 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 98 [2020-07-21 01:23:40,626 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 52 [2020-07-21 01:23:41,097 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 52 [2020-07-21 01:23:41,101 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:41,101 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) (not (= 1 ~a21~0))) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:23:41,102 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:41,102 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,102 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,102 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,102 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,102 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,102 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:23:41,103 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,104 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:41,105 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,106 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,107 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,107 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,107 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 490) no Hoare annotation was computed. [2020-07-21 01:23:41,107 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:41,107 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:23:41,107 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:41,108 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:23:41,108 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:23:41,108 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:23:41,108 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:23:41,108 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:23:41,108 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:23:41,108 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:23:41,109 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:23:41,110 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:23:41,110 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:23:41,119 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,120 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:23:41,121 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,122 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:23:41,123 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:23:41,124 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:23:41,125 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:23:41,126 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:23:41,127 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:23:41,128 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:23:41,129 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:23:41,129 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:23:41,129 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:23:41,129 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,129 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,129 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,130 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse3 (not (= 1 ~a21~0))) (.cse13 (= 1 |old(~a25~0)|)) (.cse14 (<= ~a11~0 |old(~a11~0)|)) (.cse18 (<= ~a17~0 |old(~a17~0)|)) (.cse8 (= ~a19~0 |old(~a19~0)|)) (.cse11 (<= |old(~a28~0)| ~a28~0)) (.cse17 (= ~a25~0 |old(~a25~0)|))) (let ((.cse2 (and .cse14 .cse18 .cse8 .cse11 .cse17)) (.cse6 (not .cse13)) (.cse12 (= 1 ~a25~0)) (.cse7 (<= ~a28~0 |old(~a28~0)|)) (.cse10 (= 8 ~a17~0)) (.cse15 (not (<= |old(~a28~0)| 9))) (.cse5 (not (= 8 |old(~a17~0)|))) (.cse4 (not (<= |old(~a11~0)| 0))) (.cse1 (not (<= |old(~a17~0)| 7))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse9 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse3)) (.cse19 (not (<= 10 |old(~a28~0)|))) (.cse16 (not (< |old(~a28~0)| 11)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12)) (or (and .cse13 (not (< 9 |old(~a28~0)|))) .cse2 .cse1 (not (< 8 |old(~a28~0)|)) .cse3 .cse4) (or .cse14 .cse5 .cse15 .cse3 .cse4) (or .cse14 .cse5 .cse6 .cse3 .cse4 .cse16) (or .cse5 (and .cse7 .cse8 .cse10 .cse11 .cse12) .cse6 .cse16) (or .cse15 .cse6 .cse1 (and .cse7 (= ~a17~0 |old(~a17~0)|) .cse8 .cse9 .cse11 .cse12)) (or (and .cse7 .cse8 .cse10 .cse11 .cse17) .cse5 .cse15) (or .cse0 .cse14 (not (= 10 |old(~a28~0)|)) .cse5 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|))) .cse3 .cse4) (or (and .cse18 .cse8 .cse11 .cse17) .cse1 .cse19) (or .cse0 (not (<= 8 |old(~a17~0)|)) (and .cse18 (<= 8 ~a17~0) (< ~a28~0 11) .cse8 .cse9 .cse11 .cse17) .cse19 .cse16)))) [2020-07-21 01:23:41,130 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,130 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,130 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,130 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:23:41,130 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:23:41,130 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:23:41,131 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:23:41,132 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:23:41,133 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,134 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:23:41,135 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:41,136 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:23:41,137 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:23:41,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:41,137 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:23:41,137 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:23:41,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:41,137 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 01:23:41,138 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (< ~a28~0 11)) (.cse5 (= 1 ~a19~0)) (.cse0 (<= ~a11~0 0)) (.cse6 (<= 10 ~a28~0)) (.cse3 (= 8 ~a17~0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and (< 8 ~a28~0) .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse5 (<= ~a17~0 |old(~a17~0)|) .cse2 .cse6) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse3 .cse4) (and .cse5 .cse0 .cse1) (and .cse1 .cse6) (not (= 1 ~a21~0)) (and (<= ~a28~0 9) .cse3) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse4) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)))) [2020-07-21 01:23:41,138 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:41,138 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:41,138 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (< ~a28~0 11)) (.cse5 (= 1 ~a19~0)) (.cse0 (<= ~a11~0 0)) (.cse6 (<= 10 ~a28~0)) (.cse3 (= 8 ~a17~0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and (< 8 ~a28~0) .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse5 (<= ~a17~0 |old(~a17~0)|) .cse2 .cse6) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse3 .cse4) (and .cse5 .cse0 .cse1) (and .cse1 .cse6) (not (= 1 ~a21~0)) (and (<= ~a28~0 9) .cse3) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse4) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)))) [2020-07-21 01:23:41,138 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:23:41,138 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:23:41,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:23:41 BoogieIcfgContainer [2020-07-21 01:23:41,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:23:41,164 INFO L168 Benchmark]: Toolchain (without parser) took 24907.69 ms. Allocated memory was 140.5 MB in the beginning and 496.0 MB in the end (delta: 355.5 MB). Free memory was 103.0 MB in the beginning and 446.7 MB in the end (delta: -343.6 MB). Peak memory consumption was 375.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:41,166 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 140.5 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 01:23:41,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.17 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.6 MB in the beginning and 172.9 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:41,168 INFO L168 Benchmark]: Boogie Preprocessor took 117.62 ms. Allocated memory is still 205.5 MB. Free memory was 172.9 MB in the beginning and 168.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:41,176 INFO L168 Benchmark]: RCFGBuilder took 1243.01 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 168.2 MB in the beginning and 181.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:41,177 INFO L168 Benchmark]: TraceAbstraction took 22797.56 ms. Allocated memory was 239.1 MB in the beginning and 496.0 MB in the end (delta: 256.9 MB). Free memory was 181.4 MB in the beginning and 446.7 MB in the end (delta: -265.3 MB). Peak memory consumption was 354.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:41,184 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 140.5 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.17 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.6 MB in the beginning and 172.9 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.62 ms. Allocated memory is still 205.5 MB. Free memory was 172.9 MB in the beginning and 168.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1243.01 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 168.2 MB in the beginning and 181.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22797.56 ms. Allocated memory was 239.1 MB in the beginning and 496.0 MB in the end (delta: 256.9 MB). Free memory was 181.4 MB in the beginning and 446.7 MB in the end (delta: -265.3 MB). Peak memory consumption was 354.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 490]: 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)) || ((8 < a28 && a11 <= 0) && a17 <= 7)) || ((a28 < 11 && 8 == a17) && 1 == a25)) || (((1 == a19 && a17 <= \old(a17)) && a28 < 11) && 10 <= a28)) || !(7 == \old(a28))) || ((1 == a19 && 8 == a17) && 1 == a25)) || ((1 == a19 && a11 <= 0) && a17 <= 7)) || (a17 <= 7 && 10 <= a28)) || !(1 == a21)) || (a28 <= 9 && 8 == a17)) || !(\old(a11) <= 0)) || (a17 <= 7 && 1 == a25)) || !(8 == \old(a17))) || !(\old(a25) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.0s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 880 SDtfs, 5017 SDslu, 711 SDs, 0 SdLazy, 8226 SolverSat, 1283 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2684 GetRequests, 2577 SyntacticMatches, 7 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2805occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 868 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 126 PreInvPairs, 170 NumberOfFragments, 656 HoareAnnotationTreeSize, 126 FomulaSimplifications, 3247 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5075 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1632 NumberOfCodeBlocks, 1106 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2617 ConstructedInterpolants, 0 QuantifiedInterpolants, 1616063 SizeOfPredicates, 39 NumberOfNonLiveVariables, 3557 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1187/1234 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...