/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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:56:56,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:56:56,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:56:56,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:56:56,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:56:56,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:56:56,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:56:56,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:56:56,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:56:56,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:56:56,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:56:56,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:56:56,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:56:56,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:56:56,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:56:56,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:56:56,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:56:56,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:56:56,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:56:56,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:56:56,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:56:56,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:56:56,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:56:56,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:56:56,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:56:56,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:56:56,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:56:56,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:56:56,852 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 22:56:56,867 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:56:56,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:56:56,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:56:56,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:56:56,869 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:56:56,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:56:56,870 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:56:56,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:56:56,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:56:56,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:56:56,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:56:56,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:56:56,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:56:56,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:56:56,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:56:56,872 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:56:56,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:56:56,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:56:56,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:56:56,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:56:56,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:56:56,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:56:56,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:56:56,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:56:56,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:56:56,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:56:56,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:56,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:56:56,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:56:56,874 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 22:56:57,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:56:57,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:56:57,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:56:57,167 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:56:57,168 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:56:57,168 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 22:56:57,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db51fb694/49097288deff478085a296d8f2401c9a/FLAGfe7d9520d [2020-07-21 22:56:57,770 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:56:57,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 22:56:57,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db51fb694/49097288deff478085a296d8f2401c9a/FLAGfe7d9520d [2020-07-21 22:56:58,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db51fb694/49097288deff478085a296d8f2401c9a [2020-07-21 22:56:58,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:56:58,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:56:58,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:58,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:56:58,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:56:58,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6980433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58, skipping insertion in model container [2020-07-21 22:56:58,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:56:58,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:56:58,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:58,681 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:56:58,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:58,826 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:56:58,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58 WrapperNode [2020-07-21 22:56:58,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:58,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:56:58,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:56:58,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:56:58,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (1/1) ... [2020-07-21 22:56:58,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:56:58,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:56:58,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:56:58,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:56:58,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (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 22:56:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:56:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:56:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:56:58,992 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:56:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:56:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:56:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:56:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:56:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:56:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:56:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:57:00,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:57:00,179 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:57:00,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:00 BoogieIcfgContainer [2020-07-21 22:57:00,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:57:00,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:57:00,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:57:00,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:57:00,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:56:58" (1/3) ... [2020-07-21 22:57:00,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f61b622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:00, skipping insertion in model container [2020-07-21 22:57:00,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:58" (2/3) ... [2020-07-21 22:57:00,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f61b622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:00, skipping insertion in model container [2020-07-21 22:57:00,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:00" (3/3) ... [2020-07-21 22:57:00,207 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-07-21 22:57:00,218 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:57:00,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:57:00,243 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:57:00,276 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:57:00,277 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:57:00,278 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:57:00,278 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:57:00,278 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:57:00,278 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:57:00,278 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:57:00,279 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:57:00,300 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:57:00,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 22:57:00,314 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:00,315 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, 1, 1, 1, 1] [2020-07-21 22:57:00,315 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:00,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1960329542, now seen corresponding path program 1 times [2020-07-21 22:57:00,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:00,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725237072] [2020-07-21 22:57:00,332 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 22:57:00,517 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:57:00,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:00,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:57:00,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:01,029 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:01,033 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:57:01,034 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:57:01,139 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 22:57:01,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:01,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725237072] [2020-07-21 22:57:01,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:01,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:57:01,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914591878] [2020-07-21 22:57:01,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:57:01,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:01,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:57:01,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:57:01,167 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:57:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:02,396 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:57:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:57:02,398 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 116 [2020-07-21 22:57:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:02,418 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:57:02,418 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:57:02,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:57:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:57:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:57:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:57:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:57:02,525 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 116 [2020-07-21 22:57:02,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:02,526 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:57:02,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:57:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:57:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 22:57:02,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:02,530 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, 1, 1, 1, 1] [2020-07-21 22:57:02,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:02,746 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:02,748 INFO L82 PathProgramCache]: Analyzing trace with hash 539238327, now seen corresponding path program 1 times [2020-07-21 22:57:02,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:02,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240528465] [2020-07-21 22:57:02,749 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 22:57:02,850 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:57:02,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:02,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:57:02,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:03,384 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 22:57:03,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:03,795 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:57:03,796 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:57:03,798 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:57:03,799 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:57:03,800 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:57:03,821 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:57:03,822 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:57:03,864 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:03,943 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:04,071 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 22:57:04,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240528465] [2020-07-21 22:57:04,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:04,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:57:04,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365765186] [2020-07-21 22:57:04,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:57:04,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:04,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:57:04,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:57:04,075 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:57:05,097 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:57:06,250 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:57:07,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:07,799 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 22:57:07,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:57:07,801 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 125 [2020-07-21 22:57:07,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:07,812 INFO L225 Difference]: With dead ends: 738 [2020-07-21 22:57:07,812 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 22:57:07,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 227 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 22:57:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 22:57:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 22:57:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:57:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 22:57:07,871 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 125 [2020-07-21 22:57:07,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:07,873 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 22:57:07,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:57:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 22:57:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 22:57:07,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:07,879 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, 1, 1, 1, 1] [2020-07-21 22:57:08,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:08,084 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:08,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:08,085 INFO L82 PathProgramCache]: Analyzing trace with hash -769077558, now seen corresponding path program 1 times [2020-07-21 22:57:08,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:08,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684517991] [2020-07-21 22:57:08,086 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 22:57:08,163 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:57:08,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:08,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:57:08,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:08,202 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:57:08,203 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:08,225 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:08,240 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 22:57:08,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:08,350 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:57:08,351 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:08,378 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:57:08,425 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:08,429 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:08,450 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 22:57:08,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684517991] [2020-07-21 22:57:08,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:08,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:08,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649814969] [2020-07-21 22:57:08,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:08,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:08,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:08,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:08,453 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 22:57:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:10,048 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 22:57:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:57:10,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-21 22:57:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:10,058 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 22:57:10,058 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 22:57:10,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 273 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 22:57:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 22:57:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 22:57:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:57:10,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1271 transitions. [2020-07-21 22:57:10,130 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1271 transitions. Word has length 137 [2020-07-21 22:57:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:10,131 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1271 transitions. [2020-07-21 22:57:10,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1271 transitions. [2020-07-21 22:57:10,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 22:57:10,136 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:10,136 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, 1, 1, 1, 1] [2020-07-21 22:57:10,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:10,351 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:10,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:10,352 INFO L82 PathProgramCache]: Analyzing trace with hash 815995233, now seen corresponding path program 1 times [2020-07-21 22:57:10,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:10,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247566314] [2020-07-21 22:57:10,353 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 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 22:57:10,457 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:57:10,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:10,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:10,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:10,495 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 22:57:10,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:10,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247566314] [2020-07-21 22:57:10,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:10,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:57:10,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128590702] [2020-07-21 22:57:10,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:57:10,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:10,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:57:10,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:57:10,498 INFO L87 Difference]: Start difference. First operand 1015 states and 1271 transitions. Second operand 3 states. [2020-07-21 22:57:11,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:11,130 INFO L93 Difference]: Finished difference Result 2320 states and 3002 transitions. [2020-07-21 22:57:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:57:11,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-07-21 22:57:11,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:11,148 INFO L225 Difference]: With dead ends: 2320 [2020-07-21 22:57:11,148 INFO L226 Difference]: Without dead ends: 1311 [2020-07-21 22:57:11,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 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 22:57:11,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2020-07-21 22:57:11,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1307. [2020-07-21 22:57:11,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2020-07-21 22:57:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1677 transitions. [2020-07-21 22:57:11,213 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1677 transitions. Word has length 158 [2020-07-21 22:57:11,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:11,215 INFO L479 AbstractCegarLoop]: Abstraction has 1307 states and 1677 transitions. [2020-07-21 22:57:11,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:57:11,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1677 transitions. [2020-07-21 22:57:11,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 22:57:11,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:11,225 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:11,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:11,439 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:11,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1272993762, now seen corresponding path program 1 times [2020-07-21 22:57:11,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:11,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903061527] [2020-07-21 22:57:11,440 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 22:57:11,531 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:11,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:11,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:11,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:57:11,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:57:11,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903061527] [2020-07-21 22:57:11,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:11,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 22:57:11,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738297392] [2020-07-21 22:57:11,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:57:11,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:11,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:57:11,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:57:11,707 INFO L87 Difference]: Start difference. First operand 1307 states and 1677 transitions. Second operand 8 states. [2020-07-21 22:57:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:12,978 INFO L93 Difference]: Finished difference Result 3180 states and 4224 transitions. [2020-07-21 22:57:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:57:12,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-07-21 22:57:12,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:12,986 INFO L225 Difference]: With dead ends: 3180 [2020-07-21 22:57:12,986 INFO L226 Difference]: Without dead ends: 1278 [2020-07-21 22:57:12,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:57:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-07-21 22:57:13,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2020-07-21 22:57:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-07-21 22:57:13,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1566 transitions. [2020-07-21 22:57:13,029 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1566 transitions. Word has length 161 [2020-07-21 22:57:13,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:13,029 INFO L479 AbstractCegarLoop]: Abstraction has 1278 states and 1566 transitions. [2020-07-21 22:57:13,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:57:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1566 transitions. [2020-07-21 22:57:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 22:57:13,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:13,034 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:13,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:13,249 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:13,250 INFO L82 PathProgramCache]: Analyzing trace with hash 611682855, now seen corresponding path program 1 times [2020-07-21 22:57:13,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:13,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356183347] [2020-07-21 22:57:13,251 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 22:57:13,335 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:13,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:13,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:57:13,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:13,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:13,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356183347] [2020-07-21 22:57:13,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:13,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:13,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769990118] [2020-07-21 22:57:13,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:13,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:13,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:13,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:13,502 INFO L87 Difference]: Start difference. First operand 1278 states and 1566 transitions. Second operand 7 states. [2020-07-21 22:57:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:14,260 INFO L93 Difference]: Finished difference Result 3139 states and 4082 transitions. [2020-07-21 22:57:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:57:14,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-07-21 22:57:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:14,271 INFO L225 Difference]: With dead ends: 3139 [2020-07-21 22:57:14,271 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 22:57:14,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 22:57:14,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1879. [2020-07-21 22:57:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2020-07-21 22:57:14,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2253 transitions. [2020-07-21 22:57:14,338 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2253 transitions. Word has length 167 [2020-07-21 22:57:14,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:14,338 INFO L479 AbstractCegarLoop]: Abstraction has 1879 states and 2253 transitions. [2020-07-21 22:57:14,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2253 transitions. [2020-07-21 22:57:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 22:57:14,346 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:14,347 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:14,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:14,561 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:14,562 INFO L82 PathProgramCache]: Analyzing trace with hash 2057670802, now seen corresponding path program 1 times [2020-07-21 22:57:14,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:14,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743466722] [2020-07-21 22:57:14,563 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 22:57:14,668 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:14,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:14,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:57:14,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:14,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:14,811 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:14,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743466722] [2020-07-21 22:57:14,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:14,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:14,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201510079] [2020-07-21 22:57:14,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:14,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:14,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:14,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:14,813 INFO L87 Difference]: Start difference. First operand 1879 states and 2253 transitions. Second operand 7 states. [2020-07-21 22:57:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:15,897 INFO L93 Difference]: Finished difference Result 5391 states and 6700 transitions. [2020-07-21 22:57:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:57:15,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-07-21 22:57:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:15,913 INFO L225 Difference]: With dead ends: 5391 [2020-07-21 22:57:15,913 INFO L226 Difference]: Without dead ends: 3572 [2020-07-21 22:57:15,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2020-07-21 22:57:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3571. [2020-07-21 22:57:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3571 states. [2020-07-21 22:57:16,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4237 transitions. [2020-07-21 22:57:16,005 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4237 transitions. Word has length 178 [2020-07-21 22:57:16,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:16,005 INFO L479 AbstractCegarLoop]: Abstraction has 3571 states and 4237 transitions. [2020-07-21 22:57:16,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4237 transitions. [2020-07-21 22:57:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 22:57:16,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:16,013 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:57:16,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:16,229 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:16,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:16,230 INFO L82 PathProgramCache]: Analyzing trace with hash 810545344, now seen corresponding path program 1 times [2020-07-21 22:57:16,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:16,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071217244] [2020-07-21 22:57:16,231 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 22:57:16,330 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:16,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:16,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:16,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:57:16,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 99 proven. 12 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 22:57:16,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071217244] [2020-07-21 22:57:16,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:16,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:16,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524936306] [2020-07-21 22:57:16,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:16,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:16,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:16,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:16,502 INFO L87 Difference]: Start difference. First operand 3571 states and 4237 transitions. Second operand 7 states. [2020-07-21 22:57:17,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:17,548 INFO L93 Difference]: Finished difference Result 6463 states and 7631 transitions. [2020-07-21 22:57:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:57:17,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-21 22:57:17,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:17,560 INFO L225 Difference]: With dead ends: 6463 [2020-07-21 22:57:17,561 INFO L226 Difference]: Without dead ends: 2952 [2020-07-21 22:57:17,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:17,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2020-07-21 22:57:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2928. [2020-07-21 22:57:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2020-07-21 22:57:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 3198 transitions. [2020-07-21 22:57:17,634 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 3198 transitions. Word has length 198 [2020-07-21 22:57:17,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:17,634 INFO L479 AbstractCegarLoop]: Abstraction has 2928 states and 3198 transitions. [2020-07-21 22:57:17,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 3198 transitions. [2020-07-21 22:57:17,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-21 22:57:17,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:17,644 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:17,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:17,858 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:17,858 INFO L82 PathProgramCache]: Analyzing trace with hash 123399608, now seen corresponding path program 1 times [2020-07-21 22:57:17,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:17,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182667603] [2020-07-21 22:57:17,859 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 22:57:17,973 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:17,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:17,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:17,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 22:57:18,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 22:57:18,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182667603] [2020-07-21 22:57:18,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:18,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:57:18,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563040886] [2020-07-21 22:57:18,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:57:18,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:18,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:57:18,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:57:18,128 INFO L87 Difference]: Start difference. First operand 2928 states and 3198 transitions. Second operand 6 states. [2020-07-21 22:57:18,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:18,921 INFO L93 Difference]: Finished difference Result 4455 states and 4874 transitions. [2020-07-21 22:57:18,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:57:18,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2020-07-21 22:57:18,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:18,939 INFO L225 Difference]: With dead ends: 4455 [2020-07-21 22:57:18,940 INFO L226 Difference]: Without dead ends: 2933 [2020-07-21 22:57:18,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 400 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 22:57:18,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-07-21 22:57:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2921. [2020-07-21 22:57:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2020-07-21 22:57:19,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 3161 transitions. [2020-07-21 22:57:19,005 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 3161 transitions. Word has length 202 [2020-07-21 22:57:19,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:19,006 INFO L479 AbstractCegarLoop]: Abstraction has 2921 states and 3161 transitions. [2020-07-21 22:57:19,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:57:19,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 3161 transitions. [2020-07-21 22:57:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-21 22:57:19,014 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:19,014 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 22:57:19,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:19,228 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:19,229 INFO L82 PathProgramCache]: Analyzing trace with hash 568944774, now seen corresponding path program 1 times [2020-07-21 22:57:19,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:19,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118576804] [2020-07-21 22:57:19,230 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 22:57:19,322 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:57:19,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:19,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:57:19,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-07-21 22:57:19,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 156 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 22:57:19,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118576804] [2020-07-21 22:57:19,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:19,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:57:19,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203289530] [2020-07-21 22:57:19,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:57:19,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:19,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:57:19,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:19,471 INFO L87 Difference]: Start difference. First operand 2921 states and 3161 transitions. Second operand 7 states. [2020-07-21 22:57:20,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:20,423 INFO L93 Difference]: Finished difference Result 3659 states and 3982 transitions. [2020-07-21 22:57:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:57:20,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2020-07-21 22:57:20,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:20,435 INFO L225 Difference]: With dead ends: 3659 [2020-07-21 22:57:20,435 INFO L226 Difference]: Without dead ends: 1388 [2020-07-21 22:57:20,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-07-21 22:57:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1388. [2020-07-21 22:57:20,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-07-21 22:57:20,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1468 transitions. [2020-07-21 22:57:20,467 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1468 transitions. Word has length 251 [2020-07-21 22:57:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:20,467 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 1468 transitions. [2020-07-21 22:57:20,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:57:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1468 transitions. [2020-07-21 22:57:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-07-21 22:57:20,472 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:20,472 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:20,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:20,686 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:20,687 INFO L82 PathProgramCache]: Analyzing trace with hash -540772443, now seen corresponding path program 1 times [2020-07-21 22:57:20,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:20,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244999179] [2020-07-21 22:57:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:20,820 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:57:20,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:20,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:20,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:20,881 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 22:57:20,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:20,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244999179] [2020-07-21 22:57:20,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:20,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:57:20,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332307710] [2020-07-21 22:57:20,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:57:20,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:20,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:57:20,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:57:20,884 INFO L87 Difference]: Start difference. First operand 1388 states and 1468 transitions. Second operand 3 states. [2020-07-21 22:57:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:21,288 INFO L93 Difference]: Finished difference Result 2859 states and 3046 transitions. [2020-07-21 22:57:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:57:21,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-07-21 22:57:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:21,290 INFO L225 Difference]: With dead ends: 2859 [2020-07-21 22:57:21,290 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:57:21,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 256 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 22:57:21,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:57:21,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:57:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:57:21,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:57:21,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2020-07-21 22:57:21,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:21,299 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:57:21,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:57:21,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:57:21,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:57:21,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:21,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:57:21,887 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 91 [2020-07-21 22:57:21,989 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 102 [2020-07-21 22:57:23,192 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 148 DAG size of output: 98 [2020-07-21 22:57:23,809 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 52 [2020-07-21 22:57:24,483 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2020-07-21 22:57:24,487 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:57:24,488 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:57:24,488 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:57:24,488 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,488 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,488 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,489 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,489 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,489 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:57:24,489 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:57:24,489 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:57:24,489 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:57:24,490 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:57:24,491 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:57:24,492 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,493 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 502) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:57:24,494 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,495 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:57:24,496 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,497 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:57:24,498 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:57:24,499 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:57:24,500 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:57:24,501 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:57:24,502 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:57:24,503 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:57:24,504 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:57:24,505 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:57:24,506 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:57:24,507 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:57:24,507 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:57:24,507 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:57:24,507 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,507 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,507 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (not (= 8 |old(~a17~0)|))) (.cse7 (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|)))) (.cse6 (= 8 ~a17~0)) (.cse5 (<= ~a11~0 |old(~a11~0)|)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse18 (not (<= |old(~a28~0)| 10))) (.cse21 (= 1 ~a11~0)) (.cse16 (<= ~a28~0 10)) (.cse17 (= 1 ~a25~0)) (.cse12 (= ~a11~0 |old(~a11~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse14 (< ~a17~0 9)) (.cse0 (<= |old(~a28~0)| ~a28~0)) (.cse1 (= ~a25~0 |old(~a25~0)|)) (.cse8 (not (= 1 ~a21~0))) (.cse9 (not (<= |old(~a11~0)| 0))) (.cse3 (not (= 1 |old(~a19~0)|))) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse20 (not (<= |old(~a28~0)| 9))) (.cse19 (not (= 1 |old(~a25~0)|))) (.cse10 (not (< |old(~a17~0)| 9))) (.cse15 (not (= 1 |old(~a11~0)|)))) (and (or (and (<= ~a17~0 |old(~a17~0)|) .cse0 .cse1) .cse2) (or .cse3 (not (= 10 |old(~a28~0)|)) .cse4 (and (= 1 ~a19~0) .cse5 (= 10 ~a28~0) .cse6) .cse7 .cse8 .cse9) (or .cse3 .cse4 (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) .cse7 .cse8 .cse6 .cse9) (or (not (<= |old(~a28~0)| 7)) .cse10 (and .cse11 .cse12 .cse13 .cse14 .cse0 .cse1) .cse15) (or (and .cse12 .cse16 .cse13 .cse14 .cse0 .cse17) .cse18 .cse19 .cse10 .cse8 .cse9) (or .cse3 .cse20 .cse10 (and .cse21 (<= ~a28~0 9) .cse13 .cse14 .cse0 .cse1) (not (< 8 |old(~a28~0)|)) .cse15) (or .cse5 .cse2 .cse8 .cse9) (or .cse3 (and .cse12 .cse11 .cse13 .cse14 .cse0 .cse17) .cse19 .cse10 .cse8 .cse9) (or .cse3 .cse18 .cse19 .cse10 (and .cse21 .cse16 .cse13 .cse14 .cse0 .cse17) .cse15) (or (and .cse12 .cse11 .cse13 .cse14 .cse0 .cse1) .cse20 .cse10 .cse8 .cse9) (or .cse3 .cse11 .cse20 .cse19 .cse10 .cse15))) [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:57:24,508 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:57:24,509 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:57:24,510 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:57:24,511 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:57:24,512 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:57:24,513 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:57:24,514 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:57:24,515 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:57:24,515 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:57:24,515 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:57:24,515 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 22:57:24,515 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:57:24,515 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:57:24,516 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)|)) (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)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:57:24,516 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse5 (<= ~a28~0 9)) (.cse0 (= 1 ~a19~0)) (.cse4 (<= ~a28~0 10)) (.cse3 (= 1 ~a25~0)) (.cse6 (= 1 ~a11~0)) (.cse2 (< ~a17~0 9))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse5 .cse2) (and .cse0 .cse6 .cse5 .cse2 (<= 9 ~a28~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (and .cse0 .cse6 .cse4 .cse2 .cse3) (and .cse6 .cse2 (<= ~a28~0 7)))) [2020-07-21 22:57:24,516 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:57:24,516 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:57:24,516 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse5 (<= ~a28~0 9)) (.cse0 (= 1 ~a19~0)) (.cse4 (<= ~a28~0 10)) (.cse3 (= 1 ~a25~0)) (.cse6 (= 1 ~a11~0)) (.cse2 (< ~a17~0 9))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse1 .cse5 .cse2) (and .cse0 .cse6 .cse5 .cse2 (<= 9 ~a28~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a11~0 0) (= 10 ~a28~0) (= 8 ~a17~0) (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0))) (<= ~a17~0 7) (and .cse0 .cse6 .cse4 .cse2 .cse3) (and .cse6 .cse2 (<= ~a28~0 7)))) [2020-07-21 22:57:24,517 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:57:24,517 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:57:24,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:57:24 BoogieIcfgContainer [2020-07-21 22:57:24,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:57:24,562 INFO L168 Benchmark]: Toolchain (without parser) took 26470.78 ms. Allocated memory was 135.8 MB in the beginning and 548.4 MB in the end (delta: 412.6 MB). Free memory was 99.2 MB in the beginning and 499.1 MB in the end (delta: -399.9 MB). Peak memory consumption was 435.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:24,562 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 22:57:24,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.84 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 98.8 MB in the beginning and 168.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:24,564 INFO L168 Benchmark]: Boogie Preprocessor took 110.98 ms. Allocated memory is still 202.4 MB. Free memory was 168.5 MB in the beginning and 163.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:24,565 INFO L168 Benchmark]: RCFGBuilder took 1254.15 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 163.9 MB in the beginning and 179.5 MB in the end (delta: -15.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:24,565 INFO L168 Benchmark]: TraceAbstraction took 24365.69 ms. Allocated memory was 230.7 MB in the beginning and 548.4 MB in the end (delta: 317.7 MB). Free memory was 179.5 MB in the beginning and 499.1 MB in the end (delta: -319.6 MB). Peak memory consumption was 421.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:57:24,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.84 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 98.8 MB in the beginning and 168.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.98 ms. Allocated memory is still 202.4 MB. Free memory was 168.5 MB in the beginning and 163.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1254.15 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 163.9 MB in the beginning and 179.5 MB in the end (delta: -15.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24365.69 ms. Allocated memory was 230.7 MB in the beginning and 548.4 MB in the end (delta: 317.7 MB). Free memory was 179.5 MB in the beginning and 499.1 MB in the end (delta: -319.6 MB). Peak memory consumption was 421.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 502]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || (((1 == a19 && a11 == \old(a11)) && a17 < 9) && 1 == a25)) || (((a11 == \old(a11) && a28 <= 10) && a17 < 9) && 1 == a25)) || !(7 == \old(a28))) || ((a11 == \old(a11) && a28 <= 9) && a17 < 9)) || ((((1 == a19 && 1 == a11) && a28 <= 9) && a17 < 9) && 9 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a11 <= 0) && 10 == a28) && 8 == a17)) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || a17 <= 7) || ((((1 == a19 && 1 == a11) && a28 <= 10) && a17 < 9) && 1 == a25)) || ((1 == a11 && a17 < 9) && a28 <= 7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.2s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 899 SDtfs, 6095 SDslu, 897 SDs, 0 SdLazy, 10674 SolverSat, 1395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3424 GetRequests, 3306 SyntacticMatches, 7 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3571occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 145 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 123 PreInvPairs, 173 NumberOfFragments, 725 HoareAnnotationTreeSize, 123 FomulaSimplifications, 1835 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3832 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1951 NumberOfCodeBlocks, 1155 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3351 ConstructedInterpolants, 0 QuantifiedInterpolants, 1803882 SizeOfPredicates, 39 NumberOfNonLiveVariables, 3982 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 1720/1778 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...