/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 DAGSIZE --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.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 04:24:14,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 04:24:14,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 04:24:14,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 04:24:14,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 04:24:14,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 04:24:14,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 04:24:14,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 04:24:14,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 04:24:14,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 04:24:14,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 04:24:14,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 04:24:14,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 04:24:14,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 04:24:14,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 04:24:14,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 04:24:14,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 04:24:14,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 04:24:14,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 04:24:14,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 04:24:14,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 04:24:14,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 04:24:14,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 04:24:14,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 04:24:14,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 04:24:14,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 04:24:14,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 04:24:14,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 04:24:14,379 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 04:24:14,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 04:24:14,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 04:24:14,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 04:24:14,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 04:24:14,407 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 04:24:14,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 04:24:14,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 04:24:14,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 04:24:14,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 04:24:14,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 04:24:14,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 04:24:14,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 04:24:14,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 04:24:14,409 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 04:24:14,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 04:24:14,409 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 04:24:14,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 04:24:14,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 04:24:14,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 04:24:14,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 04:24:14,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 04:24:14,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 04:24:14,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 04:24:14,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 04:24:14,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 04:24:14,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 04:24:14,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 04:24:14,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 04:24:14,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 04:24:14,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE 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 04:24:14,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 04:24:14,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 04:24:14,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 04:24:14,706 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 04:24:14,707 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 04:24:14,708 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 04:24:14,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4144eeea2/cb94f3bc60fc4d64bf78b5129dc3a4e1/FLAG1ceb9f921 [2020-07-20 04:24:15,500 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 04:24:15,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 04:24:15,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4144eeea2/cb94f3bc60fc4d64bf78b5129dc3a4e1/FLAG1ceb9f921 [2020-07-20 04:24:15,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4144eeea2/cb94f3bc60fc4d64bf78b5129dc3a4e1 [2020-07-20 04:24:15,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 04:24:15,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 04:24:15,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 04:24:15,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 04:24:15,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 04:24:15,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:15" (1/1) ... [2020-07-20 04:24:15,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fe2c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:15, skipping insertion in model container [2020-07-20 04:24:15,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:15" (1/1) ... [2020-07-20 04:24:15,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 04:24:15,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 04:24:17,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:24:17,402 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 04:24:18,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:24:18,364 INFO L208 MainTranslator]: Completed translation [2020-07-20 04:24:18,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18 WrapperNode [2020-07-20 04:24:18,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 04:24:18,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 04:24:18,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 04:24:18,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 04:24:18,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (1/1) ... [2020-07-20 04:24:18,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (1/1) ... [2020-07-20 04:24:18,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (1/1) ... [2020-07-20 04:24:18,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (1/1) ... [2020-07-20 04:24:18,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (1/1) ... [2020-07-20 04:24:18,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (1/1) ... [2020-07-20 04:24:18,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (1/1) ... [2020-07-20 04:24:18,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 04:24:18,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 04:24:18,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 04:24:18,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 04:24:18,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (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 04:24:18,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 04:24:18,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 04:24:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 04:24:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 04:24:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 04:24:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 04:24:18,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-07-20 04:24:18,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-20 04:24:18,652 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-07-20 04:24:18,652 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 04:24:18,652 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 04:24:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-07-20 04:24:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-07-20 04:24:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-07-20 04:24:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-07-20 04:24:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-07-20 04:24:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-07-20 04:24:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-20 04:24:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-20 04:24:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 04:24:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 04:24:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 04:24:21,622 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 04:24:21,622 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 04:24:21,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:21 BoogieIcfgContainer [2020-07-20 04:24:21,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 04:24:21,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 04:24:21,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 04:24:21,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 04:24:21,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:24:15" (1/3) ... [2020-07-20 04:24:21,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71faf481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:21, skipping insertion in model container [2020-07-20 04:24:21,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:18" (2/3) ... [2020-07-20 04:24:21,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71faf481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:21, skipping insertion in model container [2020-07-20 04:24:21,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:21" (3/3) ... [2020-07-20 04:24:21,641 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 04:24:21,652 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 04:24:21,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-07-20 04:24:21,675 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-07-20 04:24:21,704 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 04:24:21,704 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 04:24:21,704 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 04:24:21,704 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 04:24:21,704 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 04:24:21,705 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 04:24:21,705 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 04:24:21,705 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 04:24:21,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states. [2020-07-20 04:24:21,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 04:24:21,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:24:21,775 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 04:24:21,776 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 04:24:21,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:24:21,784 INFO L82 PathProgramCache]: Analyzing trace with hash -537993708, now seen corresponding path program 1 times [2020-07-20 04:24:21,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:24:21,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403100150] [2020-07-20 04:24:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:24:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:23,553 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:24:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:23,801 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 04:24:23,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403100150] [2020-07-20 04:24:23,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:24:23,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:24:23,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109305269] [2020-07-20 04:24:23,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:24:23,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:24:23,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:24:23,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:24:23,831 INFO L87 Difference]: Start difference. First operand 1027 states. Second operand 4 states. [2020-07-20 04:24:24,419 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 04:24:31,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:24:31,865 INFO L93 Difference]: Finished difference Result 1794 states and 3183 transitions. [2020-07-20 04:24:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:24:31,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 04:24:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:24:31,909 INFO L225 Difference]: With dead ends: 1794 [2020-07-20 04:24:31,909 INFO L226 Difference]: Without dead ends: 1483 [2020-07-20 04:24:31,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:24:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-07-20 04:24:32,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1481. [2020-07-20 04:24:32,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2020-07-20 04:24:32,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2263 transitions. [2020-07-20 04:24:32,055 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2263 transitions. Word has length 327 [2020-07-20 04:24:32,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:24:32,057 INFO L479 AbstractCegarLoop]: Abstraction has 1481 states and 2263 transitions. [2020-07-20 04:24:32,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:24:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2263 transitions. [2020-07-20 04:24:32,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 04:24:32,064 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:24:32,065 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 04:24:32,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 04:24:32,066 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 04:24:32,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:24:32,066 INFO L82 PathProgramCache]: Analyzing trace with hash 297127498, now seen corresponding path program 1 times [2020-07-20 04:24:32,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:24:32,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815818395] [2020-07-20 04:24:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:24:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:33,108 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:24:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:33,248 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 04:24:33,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815818395] [2020-07-20 04:24:33,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:24:33,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:24:33,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261824729] [2020-07-20 04:24:33,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:24:33,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:24:33,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:24:33,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:24:33,253 INFO L87 Difference]: Start difference. First operand 1481 states and 2263 transitions. Second operand 4 states. [2020-07-20 04:24:33,856 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 04:24:40,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:24:40,317 INFO L93 Difference]: Finished difference Result 2844 states and 4401 transitions. [2020-07-20 04:24:40,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:24:40,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 04:24:40,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:24:40,333 INFO L225 Difference]: With dead ends: 2844 [2020-07-20 04:24:40,334 INFO L226 Difference]: Without dead ends: 2425 [2020-07-20 04:24:40,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:24:40,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2020-07-20 04:24:40,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2423. [2020-07-20 04:24:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-20 04:24:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3727 transitions. [2020-07-20 04:24:40,462 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3727 transitions. Word has length 327 [2020-07-20 04:24:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:24:40,464 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3727 transitions. [2020-07-20 04:24:40,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:24:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3727 transitions. [2020-07-20 04:24:40,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 04:24:40,478 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:24:40,479 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 04:24:40,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 04:24:40,484 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 04:24:40,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:24:40,486 INFO L82 PathProgramCache]: Analyzing trace with hash -586459585, now seen corresponding path program 1 times [2020-07-20 04:24:40,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:24:40,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195647433] [2020-07-20 04:24:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:24:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:41,621 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:24:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:41,851 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 04:24:41,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195647433] [2020-07-20 04:24:41,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:24:41,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:24:41,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305412461] [2020-07-20 04:24:41,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:24:41,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:24:41,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:24:41,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:24:41,855 INFO L87 Difference]: Start difference. First operand 2423 states and 3727 transitions. Second operand 4 states. [2020-07-20 04:24:42,441 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 04:24:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:24:48,709 INFO L93 Difference]: Finished difference Result 5038 states and 7854 transitions. [2020-07-20 04:24:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:24:48,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 04:24:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:24:48,731 INFO L225 Difference]: With dead ends: 5038 [2020-07-20 04:24:48,731 INFO L226 Difference]: Without dead ends: 4361 [2020-07-20 04:24:48,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:24:48,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2020-07-20 04:24:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4359. [2020-07-20 04:24:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2020-07-20 04:24:48,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 6733 transitions. [2020-07-20 04:24:48,856 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 6733 transitions. Word has length 327 [2020-07-20 04:24:48,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:24:48,857 INFO L479 AbstractCegarLoop]: Abstraction has 4359 states and 6733 transitions. [2020-07-20 04:24:48,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:24:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 6733 transitions. [2020-07-20 04:24:48,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 04:24:48,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:24:48,870 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 04:24:48,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 04:24:48,870 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 04:24:48,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:24:48,871 INFO L82 PathProgramCache]: Analyzing trace with hash -586798209, now seen corresponding path program 1 times [2020-07-20 04:24:48,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:24:48,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859443524] [2020-07-20 04:24:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:24:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:50,097 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:24:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:24:50,387 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 04:24:50,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859443524] [2020-07-20 04:24:50,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:24:50,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:24:50,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217604919] [2020-07-20 04:24:50,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:24:50,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:24:50,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:24:50,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:24:50,391 INFO L87 Difference]: Start difference. First operand 4359 states and 6733 transitions. Second operand 5 states. [2020-07-20 04:25:00,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:25:00,224 INFO L93 Difference]: Finished difference Result 12898 states and 19904 transitions. [2020-07-20 04:25:00,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:25:00,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-07-20 04:25:00,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:25:00,265 INFO L225 Difference]: With dead ends: 12898 [2020-07-20 04:25:00,266 INFO L226 Difference]: Without dead ends: 8554 [2020-07-20 04:25:00,277 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 04:25:00,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2020-07-20 04:25:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 8347. [2020-07-20 04:25:00,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8347 states. [2020-07-20 04:25:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8347 states to 8347 states and 12864 transitions. [2020-07-20 04:25:00,651 INFO L78 Accepts]: Start accepts. Automaton has 8347 states and 12864 transitions. Word has length 327 [2020-07-20 04:25:00,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:25:00,652 INFO L479 AbstractCegarLoop]: Abstraction has 8347 states and 12864 transitions. [2020-07-20 04:25:00,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:25:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8347 states and 12864 transitions. [2020-07-20 04:25:00,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-07-20 04:25:00,678 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:25:00,679 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] [2020-07-20 04:25:00,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 04:25:00,680 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 04:25:00,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:25:00,680 INFO L82 PathProgramCache]: Analyzing trace with hash 318218777, now seen corresponding path program 1 times [2020-07-20 04:25:00,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:25:00,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405342924] [2020-07-20 04:25:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:25:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:01,625 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:25:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:01,818 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 04:25:01,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405342924] [2020-07-20 04:25:01,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:25:01,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:25:01,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128271254] [2020-07-20 04:25:01,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:25:01,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:25:01,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:25:01,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:25:01,823 INFO L87 Difference]: Start difference. First operand 8347 states and 12864 transitions. Second operand 4 states. [2020-07-20 04:25:12,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:25:12,645 INFO L93 Difference]: Finished difference Result 24596 states and 37840 transitions. [2020-07-20 04:25:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:25:12,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-07-20 04:25:12,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:25:12,704 INFO L225 Difference]: With dead ends: 24596 [2020-07-20 04:25:12,705 INFO L226 Difference]: Without dead ends: 16378 [2020-07-20 04:25:12,724 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 04:25:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16378 states. [2020-07-20 04:25:13,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16378 to 16171. [2020-07-20 04:25:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2020-07-20 04:25:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 24823 transitions. [2020-07-20 04:25:13,218 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 24823 transitions. Word has length 329 [2020-07-20 04:25:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:25:13,219 INFO L479 AbstractCegarLoop]: Abstraction has 16171 states and 24823 transitions. [2020-07-20 04:25:13,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:25:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 24823 transitions. [2020-07-20 04:25:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-07-20 04:25:13,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:25:13,254 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] [2020-07-20 04:25:13,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 04:25:13,254 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 04:25:13,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:25:13,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1871319948, now seen corresponding path program 1 times [2020-07-20 04:25:13,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:25:13,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029119843] [2020-07-20 04:25:13,257 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:25:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:13,880 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:25:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:14,077 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 04:25:14,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029119843] [2020-07-20 04:25:14,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:25:14,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:25:14,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708214013] [2020-07-20 04:25:14,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:25:14,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:25:14,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:25:14,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:25:14,080 INFO L87 Difference]: Start difference. First operand 16171 states and 24823 transitions. Second operand 4 states. [2020-07-20 04:25:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:25:25,096 INFO L93 Difference]: Finished difference Result 48438 states and 74345 transitions. [2020-07-20 04:25:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:25:25,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-07-20 04:25:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:25:25,166 INFO L225 Difference]: With dead ends: 48438 [2020-07-20 04:25:25,166 INFO L226 Difference]: Without dead ends: 32309 [2020-07-20 04:25:25,203 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 04:25:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32309 states. [2020-07-20 04:25:25,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32309 to 16190. [2020-07-20 04:25:25,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16190 states. [2020-07-20 04:25:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16190 states to 16190 states and 24851 transitions. [2020-07-20 04:25:25,735 INFO L78 Accepts]: Start accepts. Automaton has 16190 states and 24851 transitions. Word has length 329 [2020-07-20 04:25:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:25:25,736 INFO L479 AbstractCegarLoop]: Abstraction has 16190 states and 24851 transitions. [2020-07-20 04:25:25,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:25:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 16190 states and 24851 transitions. [2020-07-20 04:25:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 04:25:25,763 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:25:25,763 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 04:25:25,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 04:25:25,764 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 04:25:25,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:25:25,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1567258959, now seen corresponding path program 1 times [2020-07-20 04:25:25,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:25:25,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519894769] [2020-07-20 04:25:25,765 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:25:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:26,385 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:25:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:26,610 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 04:25:26,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519894769] [2020-07-20 04:25:26,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:25:26,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:25:26,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632523529] [2020-07-20 04:25:26,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:25:26,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:25:26,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:25:26,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:25:26,613 INFO L87 Difference]: Start difference. First operand 16190 states and 24851 transitions. Second operand 4 states. [2020-07-20 04:25:37,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:25:37,997 INFO L93 Difference]: Finished difference Result 48457 states and 74366 transitions. [2020-07-20 04:25:37,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:25:37,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 04:25:37,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:25:38,072 INFO L225 Difference]: With dead ends: 48457 [2020-07-20 04:25:38,072 INFO L226 Difference]: Without dead ends: 32327 [2020-07-20 04:25:38,104 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 04:25:38,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32327 states. [2020-07-20 04:25:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32327 to 16208. [2020-07-20 04:25:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16208 states. [2020-07-20 04:25:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16208 states to 16208 states and 24872 transitions. [2020-07-20 04:25:38,684 INFO L78 Accepts]: Start accepts. Automaton has 16208 states and 24872 transitions. Word has length 330 [2020-07-20 04:25:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:25:38,685 INFO L479 AbstractCegarLoop]: Abstraction has 16208 states and 24872 transitions. [2020-07-20 04:25:38,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:25:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 16208 states and 24872 transitions. [2020-07-20 04:25:38,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-07-20 04:25:38,705 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:25:38,706 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] [2020-07-20 04:25:38,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-20 04:25:38,706 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 04:25:38,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:25:38,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1372001314, now seen corresponding path program 1 times [2020-07-20 04:25:38,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:25:38,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577820663] [2020-07-20 04:25:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:25:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:39,578 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:25:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:39,870 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 04:25:39,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577820663] [2020-07-20 04:25:39,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:25:39,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:25:39,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705071686] [2020-07-20 04:25:39,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:25:39,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:25:39,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:25:39,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:25:39,884 INFO L87 Difference]: Start difference. First operand 16208 states and 24872 transitions. Second operand 4 states. [2020-07-20 04:25:52,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:25:52,138 INFO L93 Difference]: Finished difference Result 47657 states and 72993 transitions. [2020-07-20 04:25:52,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:25:52,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2020-07-20 04:25:52,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:25:52,177 INFO L225 Difference]: With dead ends: 47657 [2020-07-20 04:25:52,177 INFO L226 Difference]: Without dead ends: 31694 [2020-07-20 04:25:52,212 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 04:25:52,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31694 states. [2020-07-20 04:25:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31694 to 31487. [2020-07-20 04:25:53,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31487 states. [2020-07-20 04:25:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31487 states to 31487 states and 48052 transitions. [2020-07-20 04:25:53,367 INFO L78 Accepts]: Start accepts. Automaton has 31487 states and 48052 transitions. Word has length 331 [2020-07-20 04:25:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:25:53,368 INFO L479 AbstractCegarLoop]: Abstraction has 31487 states and 48052 transitions. [2020-07-20 04:25:53,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:25:53,368 INFO L276 IsEmpty]: Start isEmpty. Operand 31487 states and 48052 transitions. [2020-07-20 04:25:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-07-20 04:25:53,398 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:25:53,398 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] [2020-07-20 04:25:53,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-20 04:25:53,398 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 04:25:53,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:25:53,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1276054559, now seen corresponding path program 1 times [2020-07-20 04:25:53,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:25:53,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878285763] [2020-07-20 04:25:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:25:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:54,384 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:25:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:25:54,512 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 04:25:54,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878285763] [2020-07-20 04:25:54,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:25:54,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:25:54,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119485421] [2020-07-20 04:25:54,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:25:54,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:25:54,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:25:54,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:25:54,515 INFO L87 Difference]: Start difference. First operand 31487 states and 48052 transitions. Second operand 5 states. [2020-07-20 04:26:03,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:26:03,754 INFO L93 Difference]: Finished difference Result 64556 states and 98457 transitions. [2020-07-20 04:26:03,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:26:03,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-07-20 04:26:03,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:26:03,794 INFO L225 Difference]: With dead ends: 64556 [2020-07-20 04:26:03,794 INFO L226 Difference]: Without dead ends: 32561 [2020-07-20 04:26:03,825 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 04:26:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32561 states. [2020-07-20 04:26:04,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32561 to 32354. [2020-07-20 04:26:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32354 states. [2020-07-20 04:26:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32354 states to 32354 states and 49170 transitions. [2020-07-20 04:26:05,003 INFO L78 Accepts]: Start accepts. Automaton has 32354 states and 49170 transitions. Word has length 331 [2020-07-20 04:26:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:26:05,003 INFO L479 AbstractCegarLoop]: Abstraction has 32354 states and 49170 transitions. [2020-07-20 04:26:05,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:26:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 32354 states and 49170 transitions. [2020-07-20 04:26:05,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 04:26:05,023 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:26:05,023 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 04:26:05,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-20 04:26:05,024 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 04:26:05,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:26:05,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1240087947, now seen corresponding path program 1 times [2020-07-20 04:26:05,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:26:05,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442602095] [2020-07-20 04:26:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:26:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:05,682 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:26:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:05,778 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 04:26:05,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442602095] [2020-07-20 04:26:05,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:26:05,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:26:05,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138826592] [2020-07-20 04:26:05,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:26:05,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:26:05,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:26:05,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:26:05,780 INFO L87 Difference]: Start difference. First operand 32354 states and 49170 transitions. Second operand 4 states. [2020-07-20 04:26:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:26:13,644 INFO L93 Difference]: Finished difference Result 96190 states and 146033 transitions. [2020-07-20 04:26:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:26:13,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-20 04:26:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:26:13,713 INFO L225 Difference]: With dead ends: 96190 [2020-07-20 04:26:13,714 INFO L226 Difference]: Without dead ends: 64289 [2020-07-20 04:26:13,753 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 04:26:13,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64289 states. [2020-07-20 04:26:15,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64289 to 32412. [2020-07-20 04:26:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32412 states. [2020-07-20 04:26:15,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32412 states to 32412 states and 49245 transitions. [2020-07-20 04:26:15,314 INFO L78 Accepts]: Start accepts. Automaton has 32412 states and 49245 transitions. Word has length 333 [2020-07-20 04:26:15,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:26:15,314 INFO L479 AbstractCegarLoop]: Abstraction has 32412 states and 49245 transitions. [2020-07-20 04:26:15,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:26:15,314 INFO L276 IsEmpty]: Start isEmpty. Operand 32412 states and 49245 transitions. [2020-07-20 04:26:15,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 04:26:15,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:26:15,342 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 04:26:15,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-20 04:26:15,342 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 04:26:15,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:26:15,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1927314311, now seen corresponding path program 1 times [2020-07-20 04:26:15,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:26:15,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780149779] [2020-07-20 04:26:15,344 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:26:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:16,231 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:26:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:16,317 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 04:26:16,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780149779] [2020-07-20 04:26:16,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:26:16,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:26:16,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782286526] [2020-07-20 04:26:16,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:26:16,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:26:16,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:26:16,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:26:16,321 INFO L87 Difference]: Start difference. First operand 32412 states and 49245 transitions. Second operand 5 states. [2020-07-20 04:26:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:26:34,649 INFO L93 Difference]: Finished difference Result 119792 states and 181623 transitions. [2020-07-20 04:26:34,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 04:26:34,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2020-07-20 04:26:34,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:26:34,740 INFO L225 Difference]: With dead ends: 119792 [2020-07-20 04:26:34,740 INFO L226 Difference]: Without dead ends: 88207 [2020-07-20 04:26:34,769 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 04:26:34,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88207 states. [2020-07-20 04:26:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88207 to 32661. [2020-07-20 04:26:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32661 states. [2020-07-20 04:26:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32661 states to 32661 states and 49637 transitions. [2020-07-20 04:26:36,615 INFO L78 Accepts]: Start accepts. Automaton has 32661 states and 49637 transitions. Word has length 333 [2020-07-20 04:26:36,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:26:36,615 INFO L479 AbstractCegarLoop]: Abstraction has 32661 states and 49637 transitions. [2020-07-20 04:26:36,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:26:36,615 INFO L276 IsEmpty]: Start isEmpty. Operand 32661 states and 49637 transitions. [2020-07-20 04:26:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 04:26:36,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:26:36,643 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 04:26:36,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-20 04:26:36,643 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 04:26:36,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:26:36,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1238335886, now seen corresponding path program 1 times [2020-07-20 04:26:36,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:26:36,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095735315] [2020-07-20 04:26:36,644 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:26:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:37,470 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:26:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:37,544 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 04:26:37,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095735315] [2020-07-20 04:26:37,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:26:37,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:26:37,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179299791] [2020-07-20 04:26:37,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:26:37,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:26:37,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:26:37,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:26:37,546 INFO L87 Difference]: Start difference. First operand 32661 states and 49637 transitions. Second operand 4 states. [2020-07-20 04:26:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:26:47,461 INFO L93 Difference]: Finished difference Result 81798 states and 125255 transitions. [2020-07-20 04:26:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:26:47,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-20 04:26:47,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:26:47,521 INFO L225 Difference]: With dead ends: 81798 [2020-07-20 04:26:47,522 INFO L226 Difference]: Without dead ends: 51671 [2020-07-20 04:26:47,549 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 04:26:47,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51671 states. [2020-07-20 04:26:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51671 to 40853. [2020-07-20 04:26:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40853 states. [2020-07-20 04:26:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40853 states to 40853 states and 63079 transitions. [2020-07-20 04:26:50,571 INFO L78 Accepts]: Start accepts. Automaton has 40853 states and 63079 transitions. Word has length 333 [2020-07-20 04:26:50,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:26:50,572 INFO L479 AbstractCegarLoop]: Abstraction has 40853 states and 63079 transitions. [2020-07-20 04:26:50,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:26:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 40853 states and 63079 transitions. [2020-07-20 04:26:50,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-20 04:26:50,593 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:26:50,593 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] [2020-07-20 04:26:50,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-20 04:26:50,594 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 04:26:50,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:26:50,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1655619516, now seen corresponding path program 1 times [2020-07-20 04:26:50,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:26:50,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851764973] [2020-07-20 04:26:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:26:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:51,302 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:26:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:26:51,407 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 04:26:51,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851764973] [2020-07-20 04:26:51,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:26:51,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:26:51,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325456340] [2020-07-20 04:26:51,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:26:51,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:26:51,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:26:51,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:26:51,409 INFO L87 Difference]: Start difference. First operand 40853 states and 63079 transitions. Second operand 4 states. [2020-07-20 04:27:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:27:02,532 INFO L93 Difference]: Finished difference Result 102490 states and 159469 transitions. [2020-07-20 04:27:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:27:02,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2020-07-20 04:27:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:27:02,633 INFO L225 Difference]: With dead ends: 102490 [2020-07-20 04:27:02,633 INFO L226 Difference]: Without dead ends: 64639 [2020-07-20 04:27:02,667 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 04:27:02,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64639 states. [2020-07-20 04:27:06,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64639 to 55509. [2020-07-20 04:27:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55509 states. [2020-07-20 04:27:06,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55509 states to 55509 states and 86991 transitions. [2020-07-20 04:27:06,868 INFO L78 Accepts]: Start accepts. Automaton has 55509 states and 86991 transitions. Word has length 335 [2020-07-20 04:27:06,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:27:06,868 INFO L479 AbstractCegarLoop]: Abstraction has 55509 states and 86991 transitions. [2020-07-20 04:27:06,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:27:06,868 INFO L276 IsEmpty]: Start isEmpty. Operand 55509 states and 86991 transitions. [2020-07-20 04:27:06,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-20 04:27:06,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:27:06,889 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] [2020-07-20 04:27:06,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-20 04:27:06,890 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 04:27:06,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:27:06,890 INFO L82 PathProgramCache]: Analyzing trace with hash -846909920, now seen corresponding path program 1 times [2020-07-20 04:27:06,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:27:06,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217017021] [2020-07-20 04:27:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:27:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:27:07,551 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:27:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:27:07,640 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 04:27:07,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217017021] [2020-07-20 04:27:07,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:27:07,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:27:07,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133982380] [2020-07-20 04:27:07,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:27:07,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:27:07,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:27:07,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:27:07,642 INFO L87 Difference]: Start difference. First operand 55509 states and 86991 transitions. Second operand 4 states. [2020-07-20 04:27:24,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:27:24,058 INFO L93 Difference]: Finished difference Result 164121 states and 256973 transitions. [2020-07-20 04:27:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:27:24,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2020-07-20 04:27:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:27:24,221 INFO L225 Difference]: With dead ends: 164121 [2020-07-20 04:27:24,221 INFO L226 Difference]: Without dead ends: 109760 [2020-07-20 04:27:24,276 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 04:27:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109760 states. [2020-07-20 04:27:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109760 to 55607. [2020-07-20 04:27:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55607 states. [2020-07-20 04:27:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55607 states to 55607 states and 87127 transitions. [2020-07-20 04:27:27,584 INFO L78 Accepts]: Start accepts. Automaton has 55607 states and 87127 transitions. Word has length 335 [2020-07-20 04:27:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:27:27,584 INFO L479 AbstractCegarLoop]: Abstraction has 55607 states and 87127 transitions. [2020-07-20 04:27:27,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:27:27,584 INFO L276 IsEmpty]: Start isEmpty. Operand 55607 states and 87127 transitions. [2020-07-20 04:27:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 04:27:27,605 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:27:27,606 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] [2020-07-20 04:27:27,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-20 04:27:27,606 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 04:27:27,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:27:27,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2051963875, now seen corresponding path program 1 times [2020-07-20 04:27:27,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:27:27,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781080892] [2020-07-20 04:27:27,607 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:27:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:27:29,682 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:27:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:27:29,749 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 04:27:29,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781080892] [2020-07-20 04:27:29,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:27:29,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:27:29,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119070015] [2020-07-20 04:27:29,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:27:29,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:27:29,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:27:29,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:27:29,751 INFO L87 Difference]: Start difference. First operand 55607 states and 87127 transitions. Second operand 4 states. [2020-07-20 04:27:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:27:47,006 INFO L93 Difference]: Finished difference Result 164377 states and 257303 transitions. [2020-07-20 04:27:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:27:47,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 336 [2020-07-20 04:27:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:27:47,151 INFO L225 Difference]: With dead ends: 164377 [2020-07-20 04:27:47,151 INFO L226 Difference]: Without dead ends: 110016 [2020-07-20 04:27:47,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:27:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110016 states. [2020-07-20 04:27:50,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110016 to 55715. [2020-07-20 04:27:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55715 states. [2020-07-20 04:27:50,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55715 states to 55715 states and 87239 transitions. [2020-07-20 04:27:50,709 INFO L78 Accepts]: Start accepts. Automaton has 55715 states and 87239 transitions. Word has length 336 [2020-07-20 04:27:50,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:27:50,709 INFO L479 AbstractCegarLoop]: Abstraction has 55715 states and 87239 transitions. [2020-07-20 04:27:50,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:27:50,710 INFO L276 IsEmpty]: Start isEmpty. Operand 55715 states and 87239 transitions. [2020-07-20 04:27:50,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 04:27:50,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:27:50,731 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] [2020-07-20 04:27:50,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-20 04:27:50,731 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 04:27:50,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:27:50,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1325903080, now seen corresponding path program 1 times [2020-07-20 04:27:50,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:27:50,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746869118] [2020-07-20 04:27:50,732 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:27:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:27:51,949 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:27:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:27:52,092 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 04:27:52,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746869118] [2020-07-20 04:27:52,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:27:52,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:27:52,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105968262] [2020-07-20 04:27:52,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 04:27:52,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:27:52,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 04:27:52,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 04:27:52,097 INFO L87 Difference]: Start difference. First operand 55715 states and 87239 transitions. Second operand 6 states. [2020-07-20 04:27:52,733 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-07-20 04:28:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:28:03,484 INFO L93 Difference]: Finished difference Result 108714 states and 170358 transitions. [2020-07-20 04:28:03,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 04:28:03,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 336 [2020-07-20 04:28:03,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:28:03,557 INFO L225 Difference]: With dead ends: 108714 [2020-07-20 04:28:03,557 INFO L226 Difference]: Without dead ends: 55715 [2020-07-20 04:28:03,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 04:28:03,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55715 states. [2020-07-20 04:28:06,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55715 to 55715. [2020-07-20 04:28:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55715 states. [2020-07-20 04:28:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55715 states to 55715 states and 86569 transitions. [2020-07-20 04:28:07,286 INFO L78 Accepts]: Start accepts. Automaton has 55715 states and 86569 transitions. Word has length 336 [2020-07-20 04:28:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:28:07,286 INFO L479 AbstractCegarLoop]: Abstraction has 55715 states and 86569 transitions. [2020-07-20 04:28:07,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 04:28:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 55715 states and 86569 transitions. [2020-07-20 04:28:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 04:28:07,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:28:07,307 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] [2020-07-20 04:28:07,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-20 04:28:07,307 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 04:28:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:28:07,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1613957357, now seen corresponding path program 1 times [2020-07-20 04:28:07,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:28:07,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897455885] [2020-07-20 04:28:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:28:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:28:08,327 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:28:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:28:08,473 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 04:28:08,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897455885] [2020-07-20 04:28:08,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:28:08,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 04:28:08,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058121] [2020-07-20 04:28:08,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 04:28:08,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:28:08,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 04:28:08,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-20 04:28:08,476 INFO L87 Difference]: Start difference. First operand 55715 states and 86569 transitions. Second operand 9 states. [2020-07-20 04:28:09,134 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-07-20 04:28:27,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:28:27,829 INFO L93 Difference]: Finished difference Result 164828 states and 256932 transitions. [2020-07-20 04:28:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-20 04:28:27,830 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 336 [2020-07-20 04:28:27,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:28:27,990 INFO L225 Difference]: With dead ends: 164828 [2020-07-20 04:28:27,990 INFO L226 Difference]: Without dead ends: 112045 [2020-07-20 04:28:28,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-07-20 04:28:28,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112045 states. [2020-07-20 04:28:33,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112045 to 72683. [2020-07-20 04:28:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72683 states. [2020-07-20 04:28:33,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72683 states to 72683 states and 110493 transitions. [2020-07-20 04:28:33,580 INFO L78 Accepts]: Start accepts. Automaton has 72683 states and 110493 transitions. Word has length 336 [2020-07-20 04:28:33,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:28:33,581 INFO L479 AbstractCegarLoop]: Abstraction has 72683 states and 110493 transitions. [2020-07-20 04:28:33,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 04:28:33,581 INFO L276 IsEmpty]: Start isEmpty. Operand 72683 states and 110493 transitions. [2020-07-20 04:28:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 04:28:33,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:28:33,611 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] [2020-07-20 04:28:33,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-20 04:28:33,612 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 04:28:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:28:33,612 INFO L82 PathProgramCache]: Analyzing trace with hash -301490402, now seen corresponding path program 1 times [2020-07-20 04:28:33,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:28:33,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641689878] [2020-07-20 04:28:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:28:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:28:34,839 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:28:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:28:35,009 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 04:28:35,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641689878] [2020-07-20 04:28:35,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:28:35,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:28:35,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561302990] [2020-07-20 04:28:35,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:28:35,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:28:35,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:28:35,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:28:35,012 INFO L87 Difference]: Start difference. First operand 72683 states and 110493 transitions. Second operand 5 states. [2020-07-20 04:28:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:28:57,291 INFO L93 Difference]: Finished difference Result 214089 states and 325687 transitions. [2020-07-20 04:28:57,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:28:57,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2020-07-20 04:28:57,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:28:57,499 INFO L225 Difference]: With dead ends: 214089 [2020-07-20 04:28:57,500 INFO L226 Difference]: Without dead ends: 141748 [2020-07-20 04:28:57,582 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 04:28:57,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141748 states. [2020-07-20 04:29:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141748 to 141557. [2020-07-20 04:29:10,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141557 states. [2020-07-20 04:29:10,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141557 states to 141557 states and 214601 transitions. [2020-07-20 04:29:10,792 INFO L78 Accepts]: Start accepts. Automaton has 141557 states and 214601 transitions. Word has length 336 [2020-07-20 04:29:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:29:10,792 INFO L479 AbstractCegarLoop]: Abstraction has 141557 states and 214601 transitions. [2020-07-20 04:29:10,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:29:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand 141557 states and 214601 transitions. [2020-07-20 04:29:10,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-07-20 04:29:10,856 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:29:10,857 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 04:29:10,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-20 04:29:10,857 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 04:29:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:29:10,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1521744755, now seen corresponding path program 1 times [2020-07-20 04:29:10,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:29:10,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165107309] [2020-07-20 04:29:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:29:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:29:11,850 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:29:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:29:11,927 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 04:29:11,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165107309] [2020-07-20 04:29:11,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:29:11,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:29:11,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813083854] [2020-07-20 04:29:11,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:29:11,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:29:11,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:29:11,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:29:11,929 INFO L87 Difference]: Start difference. First operand 141557 states and 214601 transitions. Second operand 5 states. [2020-07-20 04:29:36,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:29:36,628 INFO L93 Difference]: Finished difference Result 210385 states and 318804 transitions. [2020-07-20 04:29:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:29:36,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2020-07-20 04:29:36,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:29:36,805 INFO L225 Difference]: With dead ends: 210385 [2020-07-20 04:29:36,805 INFO L226 Difference]: Without dead ends: 141776 [2020-07-20 04:29:36,874 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 04:29:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141776 states. [2020-07-20 04:29:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141776 to 140007. [2020-07-20 04:29:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140007 states. [2020-07-20 04:29:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140007 states to 140007 states and 212348 transitions. [2020-07-20 04:29:50,881 INFO L78 Accepts]: Start accepts. Automaton has 140007 states and 212348 transitions. Word has length 337 [2020-07-20 04:29:50,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:29:50,881 INFO L479 AbstractCegarLoop]: Abstraction has 140007 states and 212348 transitions. [2020-07-20 04:29:50,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:29:50,882 INFO L276 IsEmpty]: Start isEmpty. Operand 140007 states and 212348 transitions. [2020-07-20 04:29:50,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-07-20 04:29:50,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:29:50,942 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, 1] [2020-07-20 04:29:50,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-20 04:29:50,942 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 04:29:50,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:29:50,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1681776216, now seen corresponding path program 1 times [2020-07-20 04:29:50,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:29:50,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59514557] [2020-07-20 04:29:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:29:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:29:51,587 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:29:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:29:51,652 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 04:29:51,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59514557] [2020-07-20 04:29:51,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:29:51,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:29:51,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91408857] [2020-07-20 04:29:51,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:29:51,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:29:51,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:29:51,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:29:51,654 INFO L87 Difference]: Start difference. First operand 140007 states and 212348 transitions. Second operand 4 states. [2020-07-20 04:30:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:30:27,606 INFO L93 Difference]: Finished difference Result 418677 states and 634855 transitions. [2020-07-20 04:30:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:30:27,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2020-07-20 04:30:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:30:27,999 INFO L225 Difference]: With dead ends: 418677 [2020-07-20 04:30:27,999 INFO L226 Difference]: Without dead ends: 279360 [2020-07-20 04:30:28,124 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 04:30:28,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279360 states. [2020-07-20 04:30:45,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279360 to 140145. [2020-07-20 04:30:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140145 states. [2020-07-20 04:30:45,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140145 states to 140145 states and 212500 transitions. [2020-07-20 04:30:45,603 INFO L78 Accepts]: Start accepts. Automaton has 140145 states and 212500 transitions. Word has length 340 [2020-07-20 04:30:45,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:30:45,603 INFO L479 AbstractCegarLoop]: Abstraction has 140145 states and 212500 transitions. [2020-07-20 04:30:45,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:30:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 140145 states and 212500 transitions. [2020-07-20 04:30:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-07-20 04:30:45,658 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:30:45,659 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, 1] [2020-07-20 04:30:45,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-20 04:30:45,659 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 04:30:45,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:30:45,660 INFO L82 PathProgramCache]: Analyzing trace with hash 19768850, now seen corresponding path program 1 times [2020-07-20 04:30:45,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:30:45,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671910943] [2020-07-20 04:30:45,660 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:30:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:30:46,412 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:30:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:30:46,529 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 04:30:46,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671910943] [2020-07-20 04:30:46,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:30:46,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:30:46,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654477443] [2020-07-20 04:30:46,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:30:46,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:30:46,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:30:46,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:30:46,532 INFO L87 Difference]: Start difference. First operand 140145 states and 212500 transitions. Second operand 4 states. [2020-07-20 04:31:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:31:27,336 INFO L93 Difference]: Finished difference Result 411893 states and 624614 transitions. [2020-07-20 04:31:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:31:27,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2020-07-20 04:31:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:31:27,736 INFO L225 Difference]: With dead ends: 411893 [2020-07-20 04:31:27,736 INFO L226 Difference]: Without dead ends: 273579 [2020-07-20 04:31:27,856 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 04:31:28,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273579 states. [2020-07-20 04:31:55,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273579 to 273396. [2020-07-20 04:31:55,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273396 states. [2020-07-20 04:31:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273396 states to 273396 states and 413005 transitions. [2020-07-20 04:31:56,319 INFO L78 Accepts]: Start accepts. Automaton has 273396 states and 413005 transitions. Word has length 340 [2020-07-20 04:31:56,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:31:56,319 INFO L479 AbstractCegarLoop]: Abstraction has 273396 states and 413005 transitions. [2020-07-20 04:31:56,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:31:56,319 INFO L276 IsEmpty]: Start isEmpty. Operand 273396 states and 413005 transitions. [2020-07-20 04:31:56,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-07-20 04:31:56,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:31:56,457 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, 1, 1] [2020-07-20 04:31:56,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-20 04:31:56,457 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 04:31:56,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:31:56,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1028603420, now seen corresponding path program 1 times [2020-07-20 04:31:56,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:31:56,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741391545] [2020-07-20 04:31:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:31:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:31:57,313 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:31:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:31:57,399 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 04:31:57,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741391545] [2020-07-20 04:31:57,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:31:57,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:31:57,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697569664] [2020-07-20 04:31:57,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:31:57,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:31:57,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:31:57,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:31:57,402 INFO L87 Difference]: Start difference. First operand 273396 states and 413005 transitions. Second operand 5 states. [2020-07-20 04:32:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:32:39,861 INFO L93 Difference]: Finished difference Result 552601 states and 834095 transitions. [2020-07-20 04:32:39,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 04:32:39,862 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-07-20 04:32:39,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:32:40,546 INFO L225 Difference]: With dead ends: 552601 [2020-07-20 04:32:40,547 INFO L226 Difference]: Without dead ends: 277360 [2020-07-20 04:32:40,739 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 04:32:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277360 states. [2020-07-20 04:33:06,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277360 to 277109. [2020-07-20 04:33:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277109 states. [2020-07-20 04:33:07,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277109 states to 277109 states and 416222 transitions. [2020-07-20 04:33:07,170 INFO L78 Accepts]: Start accepts. Automaton has 277109 states and 416222 transitions. Word has length 341 [2020-07-20 04:33:07,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:33:07,170 INFO L479 AbstractCegarLoop]: Abstraction has 277109 states and 416222 transitions. [2020-07-20 04:33:07,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:33:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 277109 states and 416222 transitions. [2020-07-20 04:33:07,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-20 04:33:07,293 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:33:07,294 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, 1, 1, 1] [2020-07-20 04:33:07,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-20 04:33:07,294 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 04:33:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:33:07,294 INFO L82 PathProgramCache]: Analyzing trace with hash 39063962, now seen corresponding path program 1 times [2020-07-20 04:33:07,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:33:07,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93949949] [2020-07-20 04:33:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:33:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:33:08,049 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:33:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:33:08,144 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 04:33:08,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93949949] [2020-07-20 04:33:08,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:33:08,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:33:08,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659173256] [2020-07-20 04:33:08,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:33:08,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:33:08,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:33:08,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:33:08,146 INFO L87 Difference]: Start difference. First operand 277109 states and 416222 transitions. Second operand 4 states. [2020-07-20 04:34:21,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:34:21,191 INFO L93 Difference]: Finished difference Result 803777 states and 1206515 transitions. [2020-07-20 04:34:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 04:34:21,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 342 [2020-07-20 04:34:21,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:34:22,043 INFO L225 Difference]: With dead ends: 803777 [2020-07-20 04:34:22,043 INFO L226 Difference]: Without dead ends: 528345 [2020-07-20 04:34:22,276 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 04:34:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528345 states. [2020-07-20 04:35:21,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528345 to 528234. [2020-07-20 04:35:21,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528234 states. [2020-07-20 04:35:22,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528234 states to 528234 states and 788166 transitions. [2020-07-20 04:35:22,379 INFO L78 Accepts]: Start accepts. Automaton has 528234 states and 788166 transitions. Word has length 342 [2020-07-20 04:35:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:35:22,379 INFO L479 AbstractCegarLoop]: Abstraction has 528234 states and 788166 transitions. [2020-07-20 04:35:22,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 04:35:22,379 INFO L276 IsEmpty]: Start isEmpty. Operand 528234 states and 788166 transitions. [2020-07-20 04:35:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-20 04:35:22,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:35:22,637 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, 1, 1, 1] [2020-07-20 04:35:22,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-20 04:35:22,637 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 04:35:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:35:22,637 INFO L82 PathProgramCache]: Analyzing trace with hash 2088068717, now seen corresponding path program 1 times [2020-07-20 04:35:22,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:35:22,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226419689] [2020-07-20 04:35:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f2876b3 [2020-07-20 04:35:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:35:23,397 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 04:35:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:35:23,505 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 04:35:23,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226419689] [2020-07-20 04:35:23,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:35:23,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 04:35:23,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584153035] [2020-07-20 04:35:23,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 04:35:23,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:35:23,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 04:35:23,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 04:35:23,508 INFO L87 Difference]: Start difference. First operand 528234 states and 788166 transitions. Second operand 4 states.