/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 06:28:54,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 06:28:54,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 06:28:54,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 06:28:54,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 06:28:54,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 06:28:54,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 06:28:54,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 06:28:54,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 06:28:54,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 06:28:54,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 06:28:54,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 06:28:54,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 06:28:54,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 06:28:54,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 06:28:54,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 06:28:54,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 06:28:54,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 06:28:54,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 06:28:54,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 06:28:54,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 06:28:54,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 06:28:54,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 06:28:54,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 06:28:54,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 06:28:54,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 06:28:54,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 06:28:54,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 06:28:54,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 06:28:54,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 06:28:54,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 06:28:54,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 06:28:54,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 06:28:54,635 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 06:28:54,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 06:28:54,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 06:28:54,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 06:28:54,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 06:28:54,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 06:28:54,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 06:28:54,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 06:28:54,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 06:28:54,637 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 06:28:54,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 06:28:54,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 06:28:54,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 06:28:54,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 06:28:54,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 06:28:54,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 06:28:54,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 06:28:54,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 06:28:54,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 06:28:54,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 06:28:54,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 06:28:54,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 06:28:54,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 06:28:54,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 06:28:54,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 06:28:54,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 06:28:54,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 06:28:54,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 06:28:54,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 06:28:54,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 06:28:54,954 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 06:28:54,954 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 06:28:55,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30bbde88f/9bffe8f9269847b19cf3b30032e8764f/FLAG861eb5b43 [2020-07-20 06:28:55,734 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 06:28:55,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 06:28:55,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30bbde88f/9bffe8f9269847b19cf3b30032e8764f/FLAG861eb5b43 [2020-07-20 06:28:55,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30bbde88f/9bffe8f9269847b19cf3b30032e8764f [2020-07-20 06:28:55,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 06:28:55,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 06:28:55,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 06:28:55,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 06:28:55,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 06:28:55,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:28:55" (1/1) ... [2020-07-20 06:28:55,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403ec8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:55, skipping insertion in model container [2020-07-20 06:28:55,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:28:55" (1/1) ... [2020-07-20 06:28:55,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 06:28:56,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 06:28:57,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:28:57,505 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 06:28:58,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:28:58,462 INFO L208 MainTranslator]: Completed translation [2020-07-20 06:28:58,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58 WrapperNode [2020-07-20 06:28:58,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 06:28:58,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 06:28:58,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 06:28:58,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 06:28:58,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (1/1) ... [2020-07-20 06:28:58,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (1/1) ... [2020-07-20 06:28:58,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (1/1) ... [2020-07-20 06:28:58,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (1/1) ... [2020-07-20 06:28:58,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (1/1) ... [2020-07-20 06:28:58,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (1/1) ... [2020-07-20 06:28:58,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (1/1) ... [2020-07-20 06:28:58,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 06:28:58,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 06:28:58,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 06:28:58,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 06:28:58,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (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 [2020-07-20 06:28:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 06:28:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 06:28:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 06:28:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 06:28:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 06:28:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 06:28:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-07-20 06:28:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-20 06:28:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-07-20 06:28:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 06:28:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 06:28:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-07-20 06:28:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-07-20 06:28:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-07-20 06:28:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-07-20 06:28:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-07-20 06:28:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-07-20 06:28:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-20 06:28:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-20 06:28:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 06:28:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 06:28:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 06:29:01,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 06:29:01,866 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 06:29:01,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:29:01 BoogieIcfgContainer [2020-07-20 06:29:01,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 06:29:01,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 06:29:01,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 06:29:01,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 06:29:01,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:28:55" (1/3) ... [2020-07-20 06:29:01,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a852c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:29:01, skipping insertion in model container [2020-07-20 06:29:01,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:28:58" (2/3) ... [2020-07-20 06:29:01,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a852c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:29:01, skipping insertion in model container [2020-07-20 06:29:01,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:29:01" (3/3) ... [2020-07-20 06:29:01,897 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 06:29:01,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 06:29:01,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-07-20 06:29:01,941 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-07-20 06:29:01,980 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 06:29:01,981 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 06:29:01,981 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 06:29:01,981 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 06:29:01,981 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 06:29:01,981 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 06:29:01,982 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 06:29:01,982 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 06:29:02,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states. [2020-07-20 06:29:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-20 06:29:02,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:29:02,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:29:02,069 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:29:02,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:29:02,074 INFO L82 PathProgramCache]: Analyzing trace with hash -179235525, now seen corresponding path program 1 times [2020-07-20 06:29:02,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:29:02,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479980005] [2020-07-20 06:29:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:29:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:03,933 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:29:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:29:04,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479980005] [2020-07-20 06:29:04,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:29:04,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:29:04,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659330981] [2020-07-20 06:29:04,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:29:04,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:29:04,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:29:04,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:29:04,156 INFO L87 Difference]: Start difference. First operand 1016 states. Second operand 4 states. [2020-07-20 06:29:04,862 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 06:29:12,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:29:12,305 INFO L93 Difference]: Finished difference Result 1776 states and 3147 transitions. [2020-07-20 06:29:12,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:29:12,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2020-07-20 06:29:12,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:29:12,340 INFO L225 Difference]: With dead ends: 1776 [2020-07-20 06:29:12,340 INFO L226 Difference]: Without dead ends: 1481 [2020-07-20 06:29:12,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:29:12,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2020-07-20 06:29:12,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1479. [2020-07-20 06:29:12,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2020-07-20 06:29:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2266 transitions. [2020-07-20 06:29:12,504 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2266 transitions. Word has length 324 [2020-07-20 06:29:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:29:12,506 INFO L479 AbstractCegarLoop]: Abstraction has 1479 states and 2266 transitions. [2020-07-20 06:29:12,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:29:12,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2266 transitions. [2020-07-20 06:29:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-20 06:29:12,515 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:29:12,515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:29:12,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 06:29:12,516 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:29:12,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:29:12,517 INFO L82 PathProgramCache]: Analyzing trace with hash -220420006, now seen corresponding path program 1 times [2020-07-20 06:29:12,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:29:12,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838144445] [2020-07-20 06:29:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:29:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:13,775 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:29:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:29:14,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838144445] [2020-07-20 06:29:14,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:29:14,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:29:14,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559549325] [2020-07-20 06:29:14,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:29:14,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:29:14,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:29:14,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:29:14,151 INFO L87 Difference]: Start difference. First operand 1479 states and 2266 transitions. Second operand 4 states. [2020-07-20 06:29:14,737 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 06:29:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:29:21,049 INFO L93 Difference]: Finished difference Result 2852 states and 4423 transitions. [2020-07-20 06:29:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:29:21,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2020-07-20 06:29:21,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:29:21,073 INFO L225 Difference]: With dead ends: 2852 [2020-07-20 06:29:21,074 INFO L226 Difference]: Without dead ends: 2439 [2020-07-20 06:29:21,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:29:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2020-07-20 06:29:21,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2437. [2020-07-20 06:29:21,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2437 states. [2020-07-20 06:29:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3757 transitions. [2020-07-20 06:29:21,198 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3757 transitions. Word has length 324 [2020-07-20 06:29:21,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:29:21,200 INFO L479 AbstractCegarLoop]: Abstraction has 2437 states and 3757 transitions. [2020-07-20 06:29:21,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:29:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3757 transitions. [2020-07-20 06:29:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-20 06:29:21,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:29:21,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:29:21,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 06:29:21,224 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:29:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:29:21,226 INFO L82 PathProgramCache]: Analyzing trace with hash -578874774, now seen corresponding path program 1 times [2020-07-20 06:29:21,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:29:21,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445784050] [2020-07-20 06:29:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:29:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:22,956 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:29:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:29:23,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445784050] [2020-07-20 06:29:23,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:29:23,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:29:23,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554254249] [2020-07-20 06:29:23,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:29:23,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:29:23,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:29:23,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:29:23,224 INFO L87 Difference]: Start difference. First operand 2437 states and 3757 transitions. Second operand 5 states. [2020-07-20 06:29:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:29:33,203 INFO L93 Difference]: Finished difference Result 7199 states and 11086 transitions. [2020-07-20 06:29:33,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:29:33,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-07-20 06:29:33,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:29:33,227 INFO L225 Difference]: With dead ends: 7199 [2020-07-20 06:29:33,228 INFO L226 Difference]: Without dead ends: 4777 [2020-07-20 06:29:33,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:29:33,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2020-07-20 06:29:33,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4653. [2020-07-20 06:29:33,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4653 states. [2020-07-20 06:29:33,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4653 states to 4653 states and 7163 transitions. [2020-07-20 06:29:33,420 INFO L78 Accepts]: Start accepts. Automaton has 4653 states and 7163 transitions. Word has length 324 [2020-07-20 06:29:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:29:33,421 INFO L479 AbstractCegarLoop]: Abstraction has 4653 states and 7163 transitions. [2020-07-20 06:29:33,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:29:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4653 states and 7163 transitions. [2020-07-20 06:29:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-07-20 06:29:33,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:29:33,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:29:33,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 06:29:33,442 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:29:33,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:29:33,442 INFO L82 PathProgramCache]: Analyzing trace with hash 76253758, now seen corresponding path program 1 times [2020-07-20 06:29:33,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:29:33,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539797205] [2020-07-20 06:29:33,444 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:29:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:34,225 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:29:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:29:34,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539797205] [2020-07-20 06:29:34,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:29:34,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:29:34,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620419219] [2020-07-20 06:29:34,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:29:34,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:29:34,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:29:34,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:29:34,462 INFO L87 Difference]: Start difference. First operand 4653 states and 7163 transitions. Second operand 4 states. [2020-07-20 06:29:44,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:29:44,641 INFO L93 Difference]: Finished difference Result 13649 states and 20959 transitions. [2020-07-20 06:29:44,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:29:44,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2020-07-20 06:29:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:29:44,681 INFO L225 Difference]: With dead ends: 13649 [2020-07-20 06:29:44,682 INFO L226 Difference]: Without dead ends: 9125 [2020-07-20 06:29:44,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:29:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9125 states. [2020-07-20 06:29:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9125 to 9001. [2020-07-20 06:29:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9001 states. [2020-07-20 06:29:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9001 states to 9001 states and 13804 transitions. [2020-07-20 06:29:45,128 INFO L78 Accepts]: Start accepts. Automaton has 9001 states and 13804 transitions. Word has length 326 [2020-07-20 06:29:45,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:29:45,128 INFO L479 AbstractCegarLoop]: Abstraction has 9001 states and 13804 transitions. [2020-07-20 06:29:45,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:29:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9001 states and 13804 transitions. [2020-07-20 06:29:45,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-07-20 06:29:45,155 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:29:45,156 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:29:45,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 06:29:45,156 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:29:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:29:45,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1985882685, now seen corresponding path program 1 times [2020-07-20 06:29:45,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:29:45,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955380952] [2020-07-20 06:29:45,158 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:29:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:45,967 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:29:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:29:46,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955380952] [2020-07-20 06:29:46,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:29:46,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:29:46,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805571436] [2020-07-20 06:29:46,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:29:46,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:29:46,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:29:46,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:29:46,156 INFO L87 Difference]: Start difference. First operand 9001 states and 13804 transitions. Second operand 4 states. [2020-07-20 06:29:56,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:29:56,984 INFO L93 Difference]: Finished difference Result 26928 states and 41288 transitions. [2020-07-20 06:29:56,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:29:56,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2020-07-20 06:29:56,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:29:57,041 INFO L225 Difference]: With dead ends: 26928 [2020-07-20 06:29:57,042 INFO L226 Difference]: Without dead ends: 17969 [2020-07-20 06:29:57,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:29:57,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17969 states. [2020-07-20 06:29:57,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17969 to 9020. [2020-07-20 06:29:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9020 states. [2020-07-20 06:29:57,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 13832 transitions. [2020-07-20 06:29:57,476 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 13832 transitions. Word has length 326 [2020-07-20 06:29:57,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:29:57,476 INFO L479 AbstractCegarLoop]: Abstraction has 9020 states and 13832 transitions. [2020-07-20 06:29:57,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:29:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 13832 transitions. [2020-07-20 06:29:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 06:29:57,497 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:29:57,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:29:57,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 06:29:57,497 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:29:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:29:57,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1229480868, now seen corresponding path program 1 times [2020-07-20 06:29:57,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:29:57,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437269136] [2020-07-20 06:29:57,499 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:29:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:58,114 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:29:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:29:58,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:29:58,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437269136] [2020-07-20 06:29:58,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:29:58,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:29:58,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103855494] [2020-07-20 06:29:58,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:29:58,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:29:58,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:29:58,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:29:58,235 INFO L87 Difference]: Start difference. First operand 9020 states and 13832 transitions. Second operand 4 states. [2020-07-20 06:30:09,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:30:09,313 INFO L93 Difference]: Finished difference Result 26947 states and 41309 transitions. [2020-07-20 06:30:09,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:30:09,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 06:30:09,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:30:09,348 INFO L225 Difference]: With dead ends: 26947 [2020-07-20 06:30:09,348 INFO L226 Difference]: Without dead ends: 17987 [2020-07-20 06:30:09,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:30:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17987 states. [2020-07-20 06:30:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17987 to 9038. [2020-07-20 06:30:09,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9038 states. [2020-07-20 06:30:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 13853 transitions. [2020-07-20 06:30:09,761 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 13853 transitions. Word has length 327 [2020-07-20 06:30:09,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:30:09,762 INFO L479 AbstractCegarLoop]: Abstraction has 9038 states and 13853 transitions. [2020-07-20 06:30:09,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:30:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 13853 transitions. [2020-07-20 06:30:09,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-07-20 06:30:09,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:30:09,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:30:09,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 06:30:09,784 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:30:09,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:30:09,784 INFO L82 PathProgramCache]: Analyzing trace with hash 588846425, now seen corresponding path program 1 times [2020-07-20 06:30:09,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:30:09,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143365638] [2020-07-20 06:30:09,785 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:30:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:10,521 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:30:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:10,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:30:10,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143365638] [2020-07-20 06:30:10,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:30:10,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:30:10,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512880356] [2020-07-20 06:30:10,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:30:10,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:30:10,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:30:10,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:30:10,717 INFO L87 Difference]: Start difference. First operand 9038 states and 13853 transitions. Second operand 4 states. [2020-07-20 06:30:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:30:21,672 INFO L93 Difference]: Finished difference Result 25493 states and 38963 transitions. [2020-07-20 06:30:21,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:30:21,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2020-07-20 06:30:21,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:30:21,708 INFO L225 Difference]: With dead ends: 25493 [2020-07-20 06:30:21,708 INFO L226 Difference]: Without dead ends: 16700 [2020-07-20 06:30:21,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:30:21,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16700 states. [2020-07-20 06:30:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16700 to 16576. [2020-07-20 06:30:22,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16576 states. [2020-07-20 06:30:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16576 states to 16576 states and 25242 transitions. [2020-07-20 06:30:22,487 INFO L78 Accepts]: Start accepts. Automaton has 16576 states and 25242 transitions. Word has length 328 [2020-07-20 06:30:22,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:30:22,488 INFO L479 AbstractCegarLoop]: Abstraction has 16576 states and 25242 transitions. [2020-07-20 06:30:22,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:30:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 16576 states and 25242 transitions. [2020-07-20 06:30:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-07-20 06:30:22,516 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:30:22,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:30:22,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-20 06:30:22,517 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:30:22,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:30:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1900100554, now seen corresponding path program 1 times [2020-07-20 06:30:22,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:30:22,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480692359] [2020-07-20 06:30:22,518 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:30:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:23,554 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:30:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:30:23,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480692359] [2020-07-20 06:30:23,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:30:23,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:30:23,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250579658] [2020-07-20 06:30:23,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:30:23,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:30:23,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:30:23,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:30:23,686 INFO L87 Difference]: Start difference. First operand 16576 states and 25242 transitions. Second operand 5 states. [2020-07-20 06:30:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:30:31,578 INFO L93 Difference]: Finished difference Result 34651 states and 52717 transitions. [2020-07-20 06:30:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:30:31,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-07-20 06:30:31,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:30:31,611 INFO L225 Difference]: With dead ends: 34651 [2020-07-20 06:30:31,612 INFO L226 Difference]: Without dead ends: 17567 [2020-07-20 06:30:31,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:30:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17567 states. [2020-07-20 06:30:32,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17567 to 17443. [2020-07-20 06:30:32,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17443 states. [2020-07-20 06:30:32,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17443 states to 17443 states and 26456 transitions. [2020-07-20 06:30:32,335 INFO L78 Accepts]: Start accepts. Automaton has 17443 states and 26456 transitions. Word has length 328 [2020-07-20 06:30:32,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:30:32,335 INFO L479 AbstractCegarLoop]: Abstraction has 17443 states and 26456 transitions. [2020-07-20 06:30:32,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:30:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 17443 states and 26456 transitions. [2020-07-20 06:30:32,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 06:30:32,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:30:32,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:30:32,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-20 06:30:32,362 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:30:32,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:30:32,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2122622970, now seen corresponding path program 1 times [2020-07-20 06:30:32,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:30:32,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756881243] [2020-07-20 06:30:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:30:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:33,004 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:30:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:30:33,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756881243] [2020-07-20 06:30:33,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:30:33,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:30:33,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770651199] [2020-07-20 06:30:33,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:30:33,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:30:33,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:30:33,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:30:33,113 INFO L87 Difference]: Start difference. First operand 17443 states and 26456 transitions. Second operand 4 states. [2020-07-20 06:30:40,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:30:40,465 INFO L93 Difference]: Finished difference Result 51457 states and 77891 transitions. [2020-07-20 06:30:40,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:30:40,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 06:30:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:30:40,510 INFO L225 Difference]: With dead ends: 51457 [2020-07-20 06:30:40,510 INFO L226 Difference]: Without dead ends: 34467 [2020-07-20 06:30:40,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:30:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34467 states. [2020-07-20 06:30:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34467 to 17501. [2020-07-20 06:30:41,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17501 states. [2020-07-20 06:30:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17501 states to 17501 states and 26531 transitions. [2020-07-20 06:30:41,221 INFO L78 Accepts]: Start accepts. Automaton has 17501 states and 26531 transitions. Word has length 330 [2020-07-20 06:30:41,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:30:41,221 INFO L479 AbstractCegarLoop]: Abstraction has 17501 states and 26531 transitions. [2020-07-20 06:30:41,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:30:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 17501 states and 26531 transitions. [2020-07-20 06:30:41,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 06:30:41,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:30:41,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:30:41,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-20 06:30:41,240 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:30:41,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:30:41,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1502657294, now seen corresponding path program 1 times [2020-07-20 06:30:41,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:30:41,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494286064] [2020-07-20 06:30:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:30:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:42,150 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:30:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:30:42,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494286064] [2020-07-20 06:30:42,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:30:42,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:30:42,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284346290] [2020-07-20 06:30:42,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:30:42,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:30:42,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:30:42,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:30:42,342 INFO L87 Difference]: Start difference. First operand 17501 states and 26531 transitions. Second operand 4 states. [2020-07-20 06:30:55,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:30:55,037 INFO L93 Difference]: Finished difference Result 51472 states and 77870 transitions. [2020-07-20 06:30:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:30:55,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 06:30:55,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:30:55,070 INFO L225 Difference]: With dead ends: 51472 [2020-07-20 06:30:55,071 INFO L226 Difference]: Without dead ends: 34256 [2020-07-20 06:30:55,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:30:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34256 states. [2020-07-20 06:30:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34256 to 34154. [2020-07-20 06:30:56,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34154 states. [2020-07-20 06:30:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34154 states to 34154 states and 51428 transitions. [2020-07-20 06:30:56,244 INFO L78 Accepts]: Start accepts. Automaton has 34154 states and 51428 transitions. Word has length 330 [2020-07-20 06:30:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:30:56,244 INFO L479 AbstractCegarLoop]: Abstraction has 34154 states and 51428 transitions. [2020-07-20 06:30:56,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:30:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 34154 states and 51428 transitions. [2020-07-20 06:30:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 06:30:56,269 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:30:56,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:30:56,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-20 06:30:56,269 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:30:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:30:56,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1851884245, now seen corresponding path program 1 times [2020-07-20 06:30:56,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:30:56,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240285349] [2020-07-20 06:30:56,270 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:30:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:57,576 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:30:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:30:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:30:57,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240285349] [2020-07-20 06:30:57,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:30:57,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:30:57,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124504263] [2020-07-20 06:30:57,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:30:57,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:30:57,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:30:57,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:30:57,703 INFO L87 Difference]: Start difference. First operand 34154 states and 51428 transitions. Second operand 5 states. [2020-07-20 06:31:06,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:31:06,841 INFO L93 Difference]: Finished difference Result 72182 states and 108521 transitions. [2020-07-20 06:31:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:31:06,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2020-07-20 06:31:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:31:06,881 INFO L225 Difference]: With dead ends: 72182 [2020-07-20 06:31:06,882 INFO L226 Difference]: Without dead ends: 36830 [2020-07-20 06:31:06,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:31:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36830 states. [2020-07-20 06:31:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36830 to 36670. [2020-07-20 06:31:08,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36670 states. [2020-07-20 06:31:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36670 states to 36670 states and 54967 transitions. [2020-07-20 06:31:08,464 INFO L78 Accepts]: Start accepts. Automaton has 36670 states and 54967 transitions. Word has length 330 [2020-07-20 06:31:08,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:31:08,464 INFO L479 AbstractCegarLoop]: Abstraction has 36670 states and 54967 transitions. [2020-07-20 06:31:08,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:31:08,464 INFO L276 IsEmpty]: Start isEmpty. Operand 36670 states and 54967 transitions. [2020-07-20 06:31:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 06:31:08,502 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:31:08,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:31:08,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-20 06:31:08,502 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:31:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:31:08,503 INFO L82 PathProgramCache]: Analyzing trace with hash 786606060, now seen corresponding path program 1 times [2020-07-20 06:31:08,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:31:08,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164318820] [2020-07-20 06:31:08,504 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:31:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:09,739 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:31:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:31:09,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164318820] [2020-07-20 06:31:09,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:31:09,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:31:09,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039419620] [2020-07-20 06:31:09,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:31:09,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:31:09,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:31:09,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:31:09,869 INFO L87 Difference]: Start difference. First operand 36670 states and 54967 transitions. Second operand 5 states. [2020-07-20 06:31:25,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:31:25,177 INFO L93 Difference]: Finished difference Result 103074 states and 153908 transitions. [2020-07-20 06:31:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:31:25,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2020-07-20 06:31:25,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:31:25,249 INFO L225 Difference]: With dead ends: 103074 [2020-07-20 06:31:25,250 INFO L226 Difference]: Without dead ends: 68540 [2020-07-20 06:31:25,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:31:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68540 states. [2020-07-20 06:31:27,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68540 to 37269. [2020-07-20 06:31:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37269 states. [2020-07-20 06:31:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37269 states to 37269 states and 55855 transitions. [2020-07-20 06:31:27,384 INFO L78 Accepts]: Start accepts. Automaton has 37269 states and 55855 transitions. Word has length 330 [2020-07-20 06:31:27,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:31:27,385 INFO L479 AbstractCegarLoop]: Abstraction has 37269 states and 55855 transitions. [2020-07-20 06:31:27,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:31:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand 37269 states and 55855 transitions. [2020-07-20 06:31:27,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 06:31:27,420 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:31:27,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:31:27,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-20 06:31:27,421 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:31:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:31:27,422 INFO L82 PathProgramCache]: Analyzing trace with hash 2005785361, now seen corresponding path program 1 times [2020-07-20 06:31:27,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:31:27,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182322241] [2020-07-20 06:31:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:31:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:28,268 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:31:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:31:28,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182322241] [2020-07-20 06:31:28,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:31:28,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:31:28,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864423176] [2020-07-20 06:31:28,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:31:28,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:31:28,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:31:28,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:31:28,457 INFO L87 Difference]: Start difference. First operand 37269 states and 55855 transitions. Second operand 4 states. [2020-07-20 06:31:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:31:39,568 INFO L93 Difference]: Finished difference Result 84943 states and 128225 transitions. [2020-07-20 06:31:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:31:39,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 06:31:39,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:31:39,630 INFO L225 Difference]: With dead ends: 84943 [2020-07-20 06:31:39,630 INFO L226 Difference]: Without dead ends: 54627 [2020-07-20 06:31:39,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:31:39,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54627 states. [2020-07-20 06:31:43,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54627 to 44745. [2020-07-20 06:31:43,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44745 states. [2020-07-20 06:31:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44745 states to 44745 states and 67907 transitions. [2020-07-20 06:31:43,321 INFO L78 Accepts]: Start accepts. Automaton has 44745 states and 67907 transitions. Word has length 330 [2020-07-20 06:31:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:31:43,322 INFO L479 AbstractCegarLoop]: Abstraction has 44745 states and 67907 transitions. [2020-07-20 06:31:43,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:31:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 44745 states and 67907 transitions. [2020-07-20 06:31:43,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-20 06:31:43,346 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:31:43,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:31:43,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-20 06:31:43,347 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:31:43,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:31:43,348 INFO L82 PathProgramCache]: Analyzing trace with hash 488749142, now seen corresponding path program 1 times [2020-07-20 06:31:43,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:31:43,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86811655] [2020-07-20 06:31:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:31:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:44,038 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:31:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:31:44,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86811655] [2020-07-20 06:31:44,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:31:44,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:31:44,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395051229] [2020-07-20 06:31:44,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:31:44,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:31:44,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:31:44,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:31:44,153 INFO L87 Difference]: Start difference. First operand 44745 states and 67907 transitions. Second operand 4 states. [2020-07-20 06:31:55,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:31:55,551 INFO L93 Difference]: Finished difference Result 103117 states and 157559 transitions. [2020-07-20 06:31:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:31:55,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2020-07-20 06:31:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:31:55,651 INFO L225 Difference]: With dead ends: 103117 [2020-07-20 06:31:55,652 INFO L226 Difference]: Without dead ends: 66729 [2020-07-20 06:31:55,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:31:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66729 states. [2020-07-20 06:31:58,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66729 to 58117. [2020-07-20 06:31:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58117 states. [2020-07-20 06:31:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58117 states to 58117 states and 89475 transitions. [2020-07-20 06:31:59,001 INFO L78 Accepts]: Start accepts. Automaton has 58117 states and 89475 transitions. Word has length 332 [2020-07-20 06:31:59,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:31:59,002 INFO L479 AbstractCegarLoop]: Abstraction has 58117 states and 89475 transitions. [2020-07-20 06:31:59,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:31:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 58117 states and 89475 transitions. [2020-07-20 06:31:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-20 06:31:59,028 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:31:59,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:31:59,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-20 06:31:59,029 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:31:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:31:59,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1851970655, now seen corresponding path program 1 times [2020-07-20 06:31:59,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:31:59,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356533447] [2020-07-20 06:31:59,029 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:31:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:59,673 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:31:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:31:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:31:59,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356533447] [2020-07-20 06:31:59,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:31:59,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:31:59,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43717112] [2020-07-20 06:31:59,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:31:59,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:31:59,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:31:59,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:31:59,752 INFO L87 Difference]: Start difference. First operand 58117 states and 89475 transitions. Second operand 4 states. [2020-07-20 06:32:18,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:32:18,295 INFO L93 Difference]: Finished difference Result 168405 states and 258851 transitions. [2020-07-20 06:32:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:32:18,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2020-07-20 06:32:18,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:32:18,430 INFO L225 Difference]: With dead ends: 168405 [2020-07-20 06:32:18,430 INFO L226 Difference]: Without dead ends: 112995 [2020-07-20 06:32:18,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:32:18,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112995 states. [2020-07-20 06:32:23,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112995 to 58445. [2020-07-20 06:32:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58445 states. [2020-07-20 06:32:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58445 states to 58445 states and 89913 transitions. [2020-07-20 06:32:23,701 INFO L78 Accepts]: Start accepts. Automaton has 58445 states and 89913 transitions. Word has length 332 [2020-07-20 06:32:23,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:32:23,701 INFO L479 AbstractCegarLoop]: Abstraction has 58445 states and 89913 transitions. [2020-07-20 06:32:23,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:32:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 58445 states and 89913 transitions. [2020-07-20 06:32:23,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 06:32:23,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:32:23,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:32:23,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-20 06:32:23,728 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:32:23,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:32:23,728 INFO L82 PathProgramCache]: Analyzing trace with hash -998110810, now seen corresponding path program 1 times [2020-07-20 06:32:23,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:32:23,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155716291] [2020-07-20 06:32:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:32:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:32:24,444 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:32:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:32:24,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:32:24,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155716291] [2020-07-20 06:32:24,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:32:24,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:32:24,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836588427] [2020-07-20 06:32:24,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:32:24,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:32:24,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:32:24,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:32:24,562 INFO L87 Difference]: Start difference. First operand 58445 states and 89913 transitions. Second operand 4 states. [2020-07-20 06:32:42,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:32:42,648 INFO L93 Difference]: Finished difference Result 168681 states and 259125 transitions. [2020-07-20 06:32:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:32:42,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-20 06:32:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:32:42,787 INFO L225 Difference]: With dead ends: 168681 [2020-07-20 06:32:42,788 INFO L226 Difference]: Without dead ends: 113291 [2020-07-20 06:32:42,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:32:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113291 states. [2020-07-20 06:32:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113291 to 58773. [2020-07-20 06:32:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58773 states. [2020-07-20 06:32:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58773 states to 58773 states and 90281 transitions. [2020-07-20 06:32:48,372 INFO L78 Accepts]: Start accepts. Automaton has 58773 states and 90281 transitions. Word has length 333 [2020-07-20 06:32:48,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:32:48,373 INFO L479 AbstractCegarLoop]: Abstraction has 58773 states and 90281 transitions. [2020-07-20 06:32:48,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:32:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 58773 states and 90281 transitions. [2020-07-20 06:32:48,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 06:32:48,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:32:48,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:32:48,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-20 06:32:48,400 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:32:48,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:32:48,401 INFO L82 PathProgramCache]: Analyzing trace with hash 174227197, now seen corresponding path program 1 times [2020-07-20 06:32:48,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:32:48,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790308619] [2020-07-20 06:32:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:32:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:32:49,150 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:32:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:32:49,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:32:49,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790308619] [2020-07-20 06:32:49,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:32:49,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:32:49,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147167875] [2020-07-20 06:32:49,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 06:32:49,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:32:49,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 06:32:49,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:32:49,419 INFO L87 Difference]: Start difference. First operand 58773 states and 90281 transitions. Second operand 6 states. [2020-07-20 06:32:50,062 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-07-20 06:33:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:33:00,419 INFO L93 Difference]: Finished difference Result 110009 states and 169376 transitions. [2020-07-20 06:33:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 06:33:00,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 333 [2020-07-20 06:33:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:33:00,489 INFO L225 Difference]: With dead ends: 110009 [2020-07-20 06:33:00,489 INFO L226 Difference]: Without dead ends: 58773 [2020-07-20 06:33:00,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 06:33:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58773 states. [2020-07-20 06:33:04,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58773 to 58773. [2020-07-20 06:33:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58773 states. [2020-07-20 06:33:04,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58773 states to 58773 states and 89583 transitions. [2020-07-20 06:33:04,759 INFO L78 Accepts]: Start accepts. Automaton has 58773 states and 89583 transitions. Word has length 333 [2020-07-20 06:33:04,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:33:04,760 INFO L479 AbstractCegarLoop]: Abstraction has 58773 states and 89583 transitions. [2020-07-20 06:33:04,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 06:33:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 58773 states and 89583 transitions. [2020-07-20 06:33:04,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 06:33:04,786 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:04,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:33:04,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-20 06:33:04,787 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:04,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:04,787 INFO L82 PathProgramCache]: Analyzing trace with hash 517892770, now seen corresponding path program 1 times [2020-07-20 06:33:04,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:04,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940339935] [2020-07-20 06:33:04,788 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:33:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:06,185 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:33:06,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940339935] [2020-07-20 06:33:06,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:06,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 06:33:06,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104460027] [2020-07-20 06:33:06,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 06:33:06,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:06,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 06:33:06,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:33:06,464 INFO L87 Difference]: Start difference. First operand 58773 states and 89583 transitions. Second operand 10 states. [2020-07-20 06:33:07,107 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-07-20 06:33:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:33:28,248 INFO L93 Difference]: Finished difference Result 191011 states and 295933 transitions. [2020-07-20 06:33:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 06:33:28,249 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 333 [2020-07-20 06:33:28,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:33:28,625 INFO L225 Difference]: With dead ends: 191011 [2020-07-20 06:33:28,625 INFO L226 Difference]: Without dead ends: 140423 [2020-07-20 06:33:28,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2020-07-20 06:33:28,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140423 states. [2020-07-20 06:33:38,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140423 to 103491. [2020-07-20 06:33:38,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103491 states. [2020-07-20 06:33:38,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103491 states to 103491 states and 158471 transitions. [2020-07-20 06:33:38,397 INFO L78 Accepts]: Start accepts. Automaton has 103491 states and 158471 transitions. Word has length 333 [2020-07-20 06:33:38,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:33:38,398 INFO L479 AbstractCegarLoop]: Abstraction has 103491 states and 158471 transitions. [2020-07-20 06:33:38,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 06:33:38,398 INFO L276 IsEmpty]: Start isEmpty. Operand 103491 states and 158471 transitions. [2020-07-20 06:33:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 06:33:38,425 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:38,425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:33:38,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-20 06:33:38,425 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:38,426 INFO L82 PathProgramCache]: Analyzing trace with hash 72101730, now seen corresponding path program 1 times [2020-07-20 06:33:38,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:38,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830000132] [2020-07-20 06:33:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:33:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:39,362 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:33:39,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830000132] [2020-07-20 06:33:39,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:39,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:33:39,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699243282] [2020-07-20 06:33:39,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:33:39,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:39,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:33:39,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:33:39,559 INFO L87 Difference]: Start difference. First operand 103491 states and 158471 transitions. Second operand 5 states. [2020-07-20 06:34:07,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:34:07,039 INFO L93 Difference]: Finished difference Result 304088 states and 465816 transitions. [2020-07-20 06:34:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:34:07,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2020-07-20 06:34:07,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:34:07,346 INFO L225 Difference]: With dead ends: 304088 [2020-07-20 06:34:07,347 INFO L226 Difference]: Without dead ends: 201428 [2020-07-20 06:34:07,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:34:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201428 states. [2020-07-20 06:34:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201428 to 201312. [2020-07-20 06:34:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201312 states. [2020-07-20 06:34:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201312 states to 201312 states and 307058 transitions. [2020-07-20 06:34:28,717 INFO L78 Accepts]: Start accepts. Automaton has 201312 states and 307058 transitions. Word has length 333 [2020-07-20 06:34:28,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:34:28,718 INFO L479 AbstractCegarLoop]: Abstraction has 201312 states and 307058 transitions. [2020-07-20 06:34:28,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:34:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 201312 states and 307058 transitions. [2020-07-20 06:34:28,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-07-20 06:34:28,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:34:28,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:34:28,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-20 06:34:28,778 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:34:28,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:34:28,778 INFO L82 PathProgramCache]: Analyzing trace with hash 790630548, now seen corresponding path program 1 times [2020-07-20 06:34:28,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:34:28,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954852506] [2020-07-20 06:34:28,779 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:34:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:30,129 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:34:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:34:30,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954852506] [2020-07-20 06:34:30,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:34:30,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:34:30,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512605871] [2020-07-20 06:34:30,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:34:30,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:34:30,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:34:30,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:34:30,224 INFO L87 Difference]: Start difference. First operand 201312 states and 307058 transitions. Second operand 5 states. [2020-07-20 06:34:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:34:59,060 INFO L93 Difference]: Finished difference Result 289743 states and 441453 transitions. [2020-07-20 06:34:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:34:59,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2020-07-20 06:34:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:34:59,753 INFO L225 Difference]: With dead ends: 289743 [2020-07-20 06:34:59,753 INFO L226 Difference]: Without dead ends: 201488 [2020-07-20 06:34:59,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:34:59,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201488 states. [2020-07-20 06:35:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201488 to 197050. [2020-07-20 06:35:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197050 states. [2020-07-20 06:35:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197050 states to 197050 states and 300946 transitions. [2020-07-20 06:35:19,649 INFO L78 Accepts]: Start accepts. Automaton has 197050 states and 300946 transitions. Word has length 334 [2020-07-20 06:35:19,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:35:19,649 INFO L479 AbstractCegarLoop]: Abstraction has 197050 states and 300946 transitions. [2020-07-20 06:35:19,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:35:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 197050 states and 300946 transitions. [2020-07-20 06:35:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-07-20 06:35:19,704 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:35:19,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:35:19,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-20 06:35:19,705 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:35:19,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:35:19,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1635709975, now seen corresponding path program 1 times [2020-07-20 06:35:19,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:35:19,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267442418] [2020-07-20 06:35:19,706 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:35:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:20,555 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:35:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:20,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:35:20,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267442418] [2020-07-20 06:35:20,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:35:20,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:35:20,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269931744] [2020-07-20 06:35:20,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:35:20,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:35:20,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:35:20,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:35:20,685 INFO L87 Difference]: Start difference. First operand 197050 states and 300946 transitions. Second operand 4 states. [2020-07-20 06:36:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:36:10,675 INFO L93 Difference]: Finished difference Result 587256 states and 896670 transitions. [2020-07-20 06:36:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:36:10,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 337 [2020-07-20 06:36:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:36:11,234 INFO L225 Difference]: With dead ends: 587256 [2020-07-20 06:36:11,234 INFO L226 Difference]: Without dead ends: 391820 [2020-07-20 06:36:11,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:36:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391820 states. [2020-07-20 06:36:34,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391820 to 197394. [2020-07-20 06:36:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197394 states. [2020-07-20 06:36:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197394 states to 197394 states and 301314 transitions. [2020-07-20 06:36:35,252 INFO L78 Accepts]: Start accepts. Automaton has 197394 states and 301314 transitions. Word has length 337 [2020-07-20 06:36:35,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:36:35,252 INFO L479 AbstractCegarLoop]: Abstraction has 197394 states and 301314 transitions. [2020-07-20 06:36:35,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:36:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 197394 states and 301314 transitions. [2020-07-20 06:36:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-07-20 06:36:35,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:36:35,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:36:35,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-20 06:36:35,306 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:36:35,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:36:35,306 INFO L82 PathProgramCache]: Analyzing trace with hash -887460974, now seen corresponding path program 1 times [2020-07-20 06:36:35,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:36:35,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652933729] [2020-07-20 06:36:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:36:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:36,390 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:36:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:36:36,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652933729] [2020-07-20 06:36:36,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:36:36,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:36:36,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110034471] [2020-07-20 06:36:36,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:36:36,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:36:36,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:36:36,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:36:36,514 INFO L87 Difference]: Start difference. First operand 197394 states and 301314 transitions. Second operand 4 states. [2020-07-20 06:37:27,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:37:27,046 INFO L93 Difference]: Finished difference Result 549591 states and 837872 transitions. [2020-07-20 06:37:27,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:37:27,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 337 [2020-07-20 06:37:27,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:37:27,619 INFO L225 Difference]: With dead ends: 549591 [2020-07-20 06:37:27,619 INFO L226 Difference]: Without dead ends: 357437 [2020-07-20 06:37:27,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:37:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357437 states. [2020-07-20 06:38:05,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357437 to 357329. [2020-07-20 06:38:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357329 states. [2020-07-20 06:38:05,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357329 states to 357329 states and 541960 transitions. [2020-07-20 06:38:05,936 INFO L78 Accepts]: Start accepts. Automaton has 357329 states and 541960 transitions. Word has length 337 [2020-07-20 06:38:05,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:38:05,936 INFO L479 AbstractCegarLoop]: Abstraction has 357329 states and 541960 transitions. [2020-07-20 06:38:05,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:38:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 357329 states and 541960 transitions. [2020-07-20 06:38:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-20 06:38:06,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:38:06,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:38:06,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-20 06:38:06,061 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:38:06,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:38:06,061 INFO L82 PathProgramCache]: Analyzing trace with hash 116359141, now seen corresponding path program 1 times [2020-07-20 06:38:06,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:38:06,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677471687] [2020-07-20 06:38:06,062 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:38:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:38:06,838 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:38:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:38:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:38:07,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677471687] [2020-07-20 06:38:07,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:38:07,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:38:07,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685713526] [2020-07-20 06:38:07,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:38:07,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:38:07,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:38:07,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:38:07,682 INFO L87 Difference]: Start difference. First operand 357329 states and 541960 transitions. Second operand 4 states. [2020-07-20 06:39:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:39:33,704 INFO L93 Difference]: Finished difference Result 1034004 states and 1567254 transitions. [2020-07-20 06:39:33,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:39:33,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 339 [2020-07-20 06:39:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:39:34,806 INFO L225 Difference]: With dead ends: 1034004 [2020-07-20 06:39:34,806 INFO L226 Difference]: Without dead ends: 679457 [2020-07-20 06:39:35,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:39:35,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679457 states. [2020-07-20 06:40:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679457 to 679383. [2020-07-20 06:40:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679383 states. [2020-07-20 06:40:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679383 states to 679383 states and 1022833 transitions. [2020-07-20 06:40:58,250 INFO L78 Accepts]: Start accepts. Automaton has 679383 states and 1022833 transitions. Word has length 339 [2020-07-20 06:40:58,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:40:58,251 INFO L479 AbstractCegarLoop]: Abstraction has 679383 states and 1022833 transitions. [2020-07-20 06:40:58,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:40:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 679383 states and 1022833 transitions. [2020-07-20 06:40:58,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-20 06:40:58,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:40:58,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:40:58,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-20 06:40:58,511 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:40:58,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:40:58,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1526432742, now seen corresponding path program 1 times [2020-07-20 06:40:58,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:40:58,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671104637] [2020-07-20 06:40:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5830c1e [2020-07-20 06:40:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:40:59,356 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:40:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:40:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:40:59,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671104637] [2020-07-20 06:40:59,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:40:59,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:40:59,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438321259] [2020-07-20 06:40:59,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:40:59,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:40:59,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:40:59,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:40:59,451 INFO L87 Difference]: Start difference. First operand 679383 states and 1022833 transitions. Second operand 5 states.