/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 NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 02:10:33,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 02:10:33,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 02:10:33,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 02:10:33,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 02:10:33,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 02:10:34,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 02:10:34,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 02:10:34,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 02:10:34,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 02:10:34,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 02:10:34,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 02:10:34,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 02:10:34,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 02:10:34,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 02:10:34,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 02:10:34,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 02:10:34,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 02:10:34,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 02:10:34,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 02:10:34,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 02:10:34,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 02:10:34,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 02:10:34,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 02:10:34,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 02:10:34,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 02:10:34,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 02:10:34,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 02:10:34,033 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 02:10:34,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 02:10:34,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 02:10:34,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 02:10:34,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 02:10:34,049 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 02:10:34,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 02:10:34,050 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 02:10:34,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 02:10:34,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 02:10:34,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 02:10:34,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 02:10:34,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 02:10:34,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 02:10:34,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 02:10:34,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 02:10:34,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 02:10:34,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 02:10:34,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 02:10:34,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 02:10:34,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 02:10:34,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 02:10:34,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 02:10:34,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 02:10:34,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 02:10:34,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 02:10:34,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 02:10:34,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 02:10:34,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 02:10:34,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 02:10:34,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 02:10:34,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 02:10:34,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 02:10:34,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 02:10:34,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 02:10:34,368 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 02:10:34,368 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 02:10:34,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7aaa1c4/68e0f2a940ea47adb4954ef6a768e809/FLAG5b6bda4d9 [2020-07-20 02:10:35,164 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 02:10:35,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 02:10:35,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7aaa1c4/68e0f2a940ea47adb4954ef6a768e809/FLAG5b6bda4d9 [2020-07-20 02:10:35,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7aaa1c4/68e0f2a940ea47adb4954ef6a768e809 [2020-07-20 02:10:35,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 02:10:35,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 02:10:35,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 02:10:35,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 02:10:35,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 02:10:35,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:10:35" (1/1) ... [2020-07-20 02:10:35,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f73b250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:35, skipping insertion in model container [2020-07-20 02:10:35,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:10:35" (1/1) ... [2020-07-20 02:10:35,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 02:10:35,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 02:10:36,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 02:10:36,932 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 02:10:37,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 02:10:37,828 INFO L208 MainTranslator]: Completed translation [2020-07-20 02:10:37,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37 WrapperNode [2020-07-20 02:10:37,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 02:10:37,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 02:10:37,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 02:10:37,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 02:10:37,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (1/1) ... [2020-07-20 02:10:37,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (1/1) ... [2020-07-20 02:10:37,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (1/1) ... [2020-07-20 02:10:37,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (1/1) ... [2020-07-20 02:10:37,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (1/1) ... [2020-07-20 02:10:38,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (1/1) ... [2020-07-20 02:10:38,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (1/1) ... [2020-07-20 02:10:38,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 02:10:38,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 02:10:38,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 02:10:38,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 02:10:38,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (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 02:10:38,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 02:10:38,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 02:10:38,132 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 02:10:38,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 02:10:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 02:10:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 02:10:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-07-20 02:10:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-20 02:10:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-07-20 02:10:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 02:10:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 02:10:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-07-20 02:10:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-07-20 02:10:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-07-20 02:10:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-07-20 02:10:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-07-20 02:10:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-07-20 02:10:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-20 02:10:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-20 02:10:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 02:10:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 02:10:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 02:10:41,557 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 02:10:41,558 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 02:10:41,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:10:41 BoogieIcfgContainer [2020-07-20 02:10:41,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 02:10:41,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 02:10:41,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 02:10:41,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 02:10:41,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:10:35" (1/3) ... [2020-07-20 02:10:41,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c38f827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:10:41, skipping insertion in model container [2020-07-20 02:10:41,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:10:37" (2/3) ... [2020-07-20 02:10:41,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c38f827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:10:41, skipping insertion in model container [2020-07-20 02:10:41,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:10:41" (3/3) ... [2020-07-20 02:10:41,592 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 02:10:41,604 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 02:10:41,618 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-07-20 02:10:41,638 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-07-20 02:10:41,678 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 02:10:41,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 02:10:41,679 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 02:10:41,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 02:10:41,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 02:10:41,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 02:10:41,680 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 02:10:41,680 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 02:10:41,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states. [2020-07-20 02:10:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-20 02:10:41,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:10:41,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:10:41,779 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 02:10:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:10:41,786 INFO L82 PathProgramCache]: Analyzing trace with hash -179235525, now seen corresponding path program 1 times [2020-07-20 02:10:41,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:10:41,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673642983] [2020-07-20 02:10:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:10:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:10:44,076 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:10:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:10:44,253 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 02:10:44,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673642983] [2020-07-20 02:10:44,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:10:44,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:10:44,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908340919] [2020-07-20 02:10:44,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:10:44,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:10:44,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:10:44,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:10:44,283 INFO L87 Difference]: Start difference. First operand 1016 states. Second operand 4 states. [2020-07-20 02:10:45,224 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 02:10:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:10:52,764 INFO L93 Difference]: Finished difference Result 1776 states and 3147 transitions. [2020-07-20 02:10:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:10:52,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2020-07-20 02:10:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:10:52,815 INFO L225 Difference]: With dead ends: 1776 [2020-07-20 02:10:52,815 INFO L226 Difference]: Without dead ends: 1481 [2020-07-20 02:10:52,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 02:10:52,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2020-07-20 02:10:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1479. [2020-07-20 02:10:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2020-07-20 02:10:52,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2266 transitions. [2020-07-20 02:10:52,990 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2266 transitions. Word has length 324 [2020-07-20 02:10:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:10:52,997 INFO L479 AbstractCegarLoop]: Abstraction has 1479 states and 2266 transitions. [2020-07-20 02:10:52,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:10:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2266 transitions. [2020-07-20 02:10:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-20 02:10:53,006 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:10:53,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:10:53,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 02:10:53,007 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 02:10:53,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:10:53,008 INFO L82 PathProgramCache]: Analyzing trace with hash -220420006, now seen corresponding path program 1 times [2020-07-20 02:10:53,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:10:53,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444788291] [2020-07-20 02:10:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:10:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:10:54,105 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:10:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:10:54,461 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 02:10:54,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444788291] [2020-07-20 02:10:54,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:10:54,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:10:54,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001820235] [2020-07-20 02:10:54,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:10:54,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:10:54,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:10:54,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:10:54,469 INFO L87 Difference]: Start difference. First operand 1479 states and 2266 transitions. Second operand 4 states. [2020-07-20 02:10:55,081 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 02:11:01,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:11:01,312 INFO L93 Difference]: Finished difference Result 2852 states and 4423 transitions. [2020-07-20 02:11:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:11:01,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2020-07-20 02:11:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:11:01,327 INFO L225 Difference]: With dead ends: 2852 [2020-07-20 02:11:01,328 INFO L226 Difference]: Without dead ends: 2439 [2020-07-20 02:11:01,330 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 02:11:01,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2020-07-20 02:11:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2437. [2020-07-20 02:11:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2437 states. [2020-07-20 02:11:01,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3757 transitions. [2020-07-20 02:11:01,424 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3757 transitions. Word has length 324 [2020-07-20 02:11:01,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:11:01,425 INFO L479 AbstractCegarLoop]: Abstraction has 2437 states and 3757 transitions. [2020-07-20 02:11:01,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:11:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3757 transitions. [2020-07-20 02:11:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-20 02:11:01,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:11:01,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:11:01,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 02:11:01,438 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 02:11:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:11:01,438 INFO L82 PathProgramCache]: Analyzing trace with hash -578874774, now seen corresponding path program 1 times [2020-07-20 02:11:01,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:11:01,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919994349] [2020-07-20 02:11:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:11:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:02,572 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:11:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:02,815 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 02:11:02,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919994349] [2020-07-20 02:11:02,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:11:02,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 02:11:02,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792819304] [2020-07-20 02:11:02,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 02:11:02,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:11:02,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 02:11:02,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 02:11:02,819 INFO L87 Difference]: Start difference. First operand 2437 states and 3757 transitions. Second operand 5 states. [2020-07-20 02:11:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:11:12,479 INFO L93 Difference]: Finished difference Result 7199 states and 11086 transitions. [2020-07-20 02:11:12,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:11:12,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-07-20 02:11:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:11:12,503 INFO L225 Difference]: With dead ends: 7199 [2020-07-20 02:11:12,503 INFO L226 Difference]: Without dead ends: 4777 [2020-07-20 02:11:12,509 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 02:11:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2020-07-20 02:11:12,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 4653. [2020-07-20 02:11:12,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4653 states. [2020-07-20 02:11:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4653 states to 4653 states and 7163 transitions. [2020-07-20 02:11:12,705 INFO L78 Accepts]: Start accepts. Automaton has 4653 states and 7163 transitions. Word has length 324 [2020-07-20 02:11:12,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:11:12,705 INFO L479 AbstractCegarLoop]: Abstraction has 4653 states and 7163 transitions. [2020-07-20 02:11:12,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 02:11:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4653 states and 7163 transitions. [2020-07-20 02:11:12,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-07-20 02:11:12,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:11:12,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:11:12,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 02:11:12,725 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 02:11:12,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:11:12,726 INFO L82 PathProgramCache]: Analyzing trace with hash 76253758, now seen corresponding path program 1 times [2020-07-20 02:11:12,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:11:12,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952025508] [2020-07-20 02:11:12,728 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:11:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:13,573 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:11:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:13,729 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 02:11:13,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952025508] [2020-07-20 02:11:13,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:11:13,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:11:13,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029895592] [2020-07-20 02:11:13,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:11:13,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:11:13,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:11:13,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:11:13,733 INFO L87 Difference]: Start difference. First operand 4653 states and 7163 transitions. Second operand 4 states. [2020-07-20 02:11:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:11:24,323 INFO L93 Difference]: Finished difference Result 13649 states and 20959 transitions. [2020-07-20 02:11:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:11:24,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2020-07-20 02:11:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:11:24,364 INFO L225 Difference]: With dead ends: 13649 [2020-07-20 02:11:24,364 INFO L226 Difference]: Without dead ends: 9125 [2020-07-20 02:11:24,375 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 02:11:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9125 states. [2020-07-20 02:11:24,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9125 to 9001. [2020-07-20 02:11:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9001 states. [2020-07-20 02:11:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9001 states to 9001 states and 13804 transitions. [2020-07-20 02:11:24,752 INFO L78 Accepts]: Start accepts. Automaton has 9001 states and 13804 transitions. Word has length 326 [2020-07-20 02:11:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:11:24,752 INFO L479 AbstractCegarLoop]: Abstraction has 9001 states and 13804 transitions. [2020-07-20 02:11:24,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:11:24,753 INFO L276 IsEmpty]: Start isEmpty. Operand 9001 states and 13804 transitions. [2020-07-20 02:11:24,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-07-20 02:11:24,772 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:11:24,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:11:24,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 02:11:24,774 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 02:11:24,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:11:24,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1985882685, now seen corresponding path program 1 times [2020-07-20 02:11:24,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:11:24,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905450072] [2020-07-20 02:11:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:11:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:25,453 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:11:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:25,603 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 02:11:25,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905450072] [2020-07-20 02:11:25,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:11:25,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:11:25,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927283952] [2020-07-20 02:11:25,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:11:25,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:11:25,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:11:25,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:11:25,608 INFO L87 Difference]: Start difference. First operand 9001 states and 13804 transitions. Second operand 4 states. [2020-07-20 02:11:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:11:36,236 INFO L93 Difference]: Finished difference Result 26928 states and 41288 transitions. [2020-07-20 02:11:36,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:11:36,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2020-07-20 02:11:36,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:11:36,311 INFO L225 Difference]: With dead ends: 26928 [2020-07-20 02:11:36,311 INFO L226 Difference]: Without dead ends: 17969 [2020-07-20 02:11:36,333 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 02:11:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17969 states. [2020-07-20 02:11:36,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17969 to 9020. [2020-07-20 02:11:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9020 states. [2020-07-20 02:11:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 13832 transitions. [2020-07-20 02:11:36,834 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 13832 transitions. Word has length 326 [2020-07-20 02:11:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:11:36,835 INFO L479 AbstractCegarLoop]: Abstraction has 9020 states and 13832 transitions. [2020-07-20 02:11:36,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:11:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 13832 transitions. [2020-07-20 02:11:36,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 02:11:36,858 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:11:36,859 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 02:11:36,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 02:11:36,859 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 02:11:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:11:36,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1229480868, now seen corresponding path program 1 times [2020-07-20 02:11:36,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:11:36,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960963269] [2020-07-20 02:11:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:11:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:37,570 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:11:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:37,676 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 02:11:37,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960963269] [2020-07-20 02:11:37,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:11:37,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:11:37,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208498340] [2020-07-20 02:11:37,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:11:37,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:11:37,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:11:37,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:11:37,685 INFO L87 Difference]: Start difference. First operand 9020 states and 13832 transitions. Second operand 4 states. [2020-07-20 02:11:48,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:11:48,416 INFO L93 Difference]: Finished difference Result 26947 states and 41309 transitions. [2020-07-20 02:11:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:11:48,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 02:11:48,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:11:48,450 INFO L225 Difference]: With dead ends: 26947 [2020-07-20 02:11:48,450 INFO L226 Difference]: Without dead ends: 17987 [2020-07-20 02:11:48,467 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 02:11:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17987 states. [2020-07-20 02:11:48,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17987 to 9038. [2020-07-20 02:11:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9038 states. [2020-07-20 02:11:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 13853 transitions. [2020-07-20 02:11:48,997 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 13853 transitions. Word has length 327 [2020-07-20 02:11:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:11:48,997 INFO L479 AbstractCegarLoop]: Abstraction has 9038 states and 13853 transitions. [2020-07-20 02:11:48,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:11:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 13853 transitions. [2020-07-20 02:11:49,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-07-20 02:11:49,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:11:49,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:11:49,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 02:11:49,017 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 02:11:49,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:11:49,018 INFO L82 PathProgramCache]: Analyzing trace with hash 588846425, now seen corresponding path program 1 times [2020-07-20 02:11:49,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:11:49,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609736973] [2020-07-20 02:11:49,019 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:11:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:49,937 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:11:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:11:50,117 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 02:11:50,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609736973] [2020-07-20 02:11:50,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:11:50,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:11:50,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217112926] [2020-07-20 02:11:50,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:11:50,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:11:50,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:11:50,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:11:50,122 INFO L87 Difference]: Start difference. First operand 9038 states and 13853 transitions. Second operand 4 states. [2020-07-20 02:12:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:12:00,858 INFO L93 Difference]: Finished difference Result 25493 states and 38963 transitions. [2020-07-20 02:12:00,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:12:00,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2020-07-20 02:12:00,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:12:00,894 INFO L225 Difference]: With dead ends: 25493 [2020-07-20 02:12:00,894 INFO L226 Difference]: Without dead ends: 16700 [2020-07-20 02:12:00,911 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 02:12:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16700 states. [2020-07-20 02:12:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16700 to 16576. [2020-07-20 02:12:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16576 states. [2020-07-20 02:12:01,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16576 states to 16576 states and 25242 transitions. [2020-07-20 02:12:01,524 INFO L78 Accepts]: Start accepts. Automaton has 16576 states and 25242 transitions. Word has length 328 [2020-07-20 02:12:01,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:12:01,524 INFO L479 AbstractCegarLoop]: Abstraction has 16576 states and 25242 transitions. [2020-07-20 02:12:01,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:12:01,525 INFO L276 IsEmpty]: Start isEmpty. Operand 16576 states and 25242 transitions. [2020-07-20 02:12:01,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-07-20 02:12:01,548 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:12:01,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:12:01,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-20 02:12:01,549 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 02:12:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:12:01,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1900100554, now seen corresponding path program 1 times [2020-07-20 02:12:01,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:12:01,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584300558] [2020-07-20 02:12:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:12:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:02,657 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:12:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:02,756 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 02:12:02,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584300558] [2020-07-20 02:12:02,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:12:02,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 02:12:02,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770651199] [2020-07-20 02:12:02,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 02:12:02,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:12:02,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 02:12:02,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 02:12:02,759 INFO L87 Difference]: Start difference. First operand 16576 states and 25242 transitions. Second operand 5 states. [2020-07-20 02:12:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:12:10,512 INFO L93 Difference]: Finished difference Result 34651 states and 52717 transitions. [2020-07-20 02:12:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:12:10,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-07-20 02:12:10,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:12:10,551 INFO L225 Difference]: With dead ends: 34651 [2020-07-20 02:12:10,551 INFO L226 Difference]: Without dead ends: 17567 [2020-07-20 02:12:10,583 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 02:12:10,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17567 states. [2020-07-20 02:12:11,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17567 to 17443. [2020-07-20 02:12:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17443 states. [2020-07-20 02:12:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17443 states to 17443 states and 26456 transitions. [2020-07-20 02:12:11,253 INFO L78 Accepts]: Start accepts. Automaton has 17443 states and 26456 transitions. Word has length 328 [2020-07-20 02:12:11,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:12:11,254 INFO L479 AbstractCegarLoop]: Abstraction has 17443 states and 26456 transitions. [2020-07-20 02:12:11,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 02:12:11,254 INFO L276 IsEmpty]: Start isEmpty. Operand 17443 states and 26456 transitions. [2020-07-20 02:12:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 02:12:11,279 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:12:11,280 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 02:12:11,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-20 02:12:11,280 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 02:12:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:12:11,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2122622970, now seen corresponding path program 1 times [2020-07-20 02:12:11,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:12:11,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018941526] [2020-07-20 02:12:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:12:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:12,080 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:12:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:12,185 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 02:12:12,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018941526] [2020-07-20 02:12:12,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:12:12,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:12:12,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654243375] [2020-07-20 02:12:12,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:12:12,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:12:12,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:12:12,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:12:12,188 INFO L87 Difference]: Start difference. First operand 17443 states and 26456 transitions. Second operand 4 states. [2020-07-20 02:12:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:12:19,196 INFO L93 Difference]: Finished difference Result 51457 states and 77891 transitions. [2020-07-20 02:12:19,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:12:19,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 02:12:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:12:19,247 INFO L225 Difference]: With dead ends: 51457 [2020-07-20 02:12:19,247 INFO L226 Difference]: Without dead ends: 34467 [2020-07-20 02:12:19,280 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 02:12:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34467 states. [2020-07-20 02:12:20,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34467 to 17501. [2020-07-20 02:12:20,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17501 states. [2020-07-20 02:12:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17501 states to 17501 states and 26531 transitions. [2020-07-20 02:12:20,049 INFO L78 Accepts]: Start accepts. Automaton has 17501 states and 26531 transitions. Word has length 330 [2020-07-20 02:12:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:12:20,049 INFO L479 AbstractCegarLoop]: Abstraction has 17501 states and 26531 transitions. [2020-07-20 02:12:20,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:12:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 17501 states and 26531 transitions. [2020-07-20 02:12:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 02:12:20,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:12:20,255 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 02:12:20,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-20 02:12:20,255 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 02:12:20,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:12:20,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1502657294, now seen corresponding path program 1 times [2020-07-20 02:12:20,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:12:20,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025760675] [2020-07-20 02:12:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:12:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:21,049 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:12:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:21,228 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 02:12:21,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025760675] [2020-07-20 02:12:21,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:12:21,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:12:21,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244380135] [2020-07-20 02:12:21,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:12:21,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:12:21,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:12:21,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:12:21,231 INFO L87 Difference]: Start difference. First operand 17501 states and 26531 transitions. Second operand 4 states. [2020-07-20 02:12:33,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:12:33,284 INFO L93 Difference]: Finished difference Result 51472 states and 77870 transitions. [2020-07-20 02:12:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:12:33,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 02:12:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:12:33,335 INFO L225 Difference]: With dead ends: 51472 [2020-07-20 02:12:33,336 INFO L226 Difference]: Without dead ends: 34256 [2020-07-20 02:12:33,356 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 02:12:33,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34256 states. [2020-07-20 02:12:34,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34256 to 34154. [2020-07-20 02:12:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34154 states. [2020-07-20 02:12:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34154 states to 34154 states and 51428 transitions. [2020-07-20 02:12:34,616 INFO L78 Accepts]: Start accepts. Automaton has 34154 states and 51428 transitions. Word has length 330 [2020-07-20 02:12:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:12:34,616 INFO L479 AbstractCegarLoop]: Abstraction has 34154 states and 51428 transitions. [2020-07-20 02:12:34,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:12:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 34154 states and 51428 transitions. [2020-07-20 02:12:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 02:12:34,640 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:12:34,641 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 02:12:34,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-20 02:12:34,641 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 02:12:34,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:12:34,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1851884245, now seen corresponding path program 1 times [2020-07-20 02:12:34,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:12:34,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781904812] [2020-07-20 02:12:34,642 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:12:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:36,599 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:12:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:36,726 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 02:12:36,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781904812] [2020-07-20 02:12:36,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:12:36,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 02:12:36,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109960392] [2020-07-20 02:12:36,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 02:12:36,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:12:36,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 02:12:36,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 02:12:36,729 INFO L87 Difference]: Start difference. First operand 34154 states and 51428 transitions. Second operand 5 states. [2020-07-20 02:12:45,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:12:45,716 INFO L93 Difference]: Finished difference Result 72182 states and 108521 transitions. [2020-07-20 02:12:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:12:45,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2020-07-20 02:12:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:12:45,756 INFO L225 Difference]: With dead ends: 72182 [2020-07-20 02:12:45,757 INFO L226 Difference]: Without dead ends: 36830 [2020-07-20 02:12:45,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 02:12:45,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36830 states. [2020-07-20 02:12:47,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36830 to 36670. [2020-07-20 02:12:47,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36670 states. [2020-07-20 02:12:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36670 states to 36670 states and 54967 transitions. [2020-07-20 02:12:47,397 INFO L78 Accepts]: Start accepts. Automaton has 36670 states and 54967 transitions. Word has length 330 [2020-07-20 02:12:47,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:12:47,397 INFO L479 AbstractCegarLoop]: Abstraction has 36670 states and 54967 transitions. [2020-07-20 02:12:47,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 02:12:47,397 INFO L276 IsEmpty]: Start isEmpty. Operand 36670 states and 54967 transitions. [2020-07-20 02:12:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 02:12:47,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:12:47,428 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 02:12:47,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-20 02:12:47,430 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 02:12:47,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:12:47,430 INFO L82 PathProgramCache]: Analyzing trace with hash 786606060, now seen corresponding path program 1 times [2020-07-20 02:12:47,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:12:47,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072423257] [2020-07-20 02:12:47,431 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:12:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:48,447 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:12:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:12:48,614 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 02:12:48,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072423257] [2020-07-20 02:12:48,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:12:48,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 02:12:48,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34572733] [2020-07-20 02:12:48,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 02:12:48,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:12:48,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 02:12:48,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 02:12:48,616 INFO L87 Difference]: Start difference. First operand 36670 states and 54967 transitions. Second operand 5 states. [2020-07-20 02:13:03,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:13:03,587 INFO L93 Difference]: Finished difference Result 103074 states and 153908 transitions. [2020-07-20 02:13:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:13:03,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2020-07-20 02:13:03,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:13:03,659 INFO L225 Difference]: With dead ends: 103074 [2020-07-20 02:13:03,659 INFO L226 Difference]: Without dead ends: 68540 [2020-07-20 02:13:03,690 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 02:13:03,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68540 states. [2020-07-20 02:13:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68540 to 37269. [2020-07-20 02:13:05,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37269 states. [2020-07-20 02:13:05,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37269 states to 37269 states and 55855 transitions. [2020-07-20 02:13:05,849 INFO L78 Accepts]: Start accepts. Automaton has 37269 states and 55855 transitions. Word has length 330 [2020-07-20 02:13:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:13:05,849 INFO L479 AbstractCegarLoop]: Abstraction has 37269 states and 55855 transitions. [2020-07-20 02:13:05,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 02:13:05,849 INFO L276 IsEmpty]: Start isEmpty. Operand 37269 states and 55855 transitions. [2020-07-20 02:13:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 02:13:05,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:13:05,882 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 02:13:05,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-20 02:13:05,883 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 02:13:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:13:05,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2005785361, now seen corresponding path program 1 times [2020-07-20 02:13:05,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:13:05,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527582731] [2020-07-20 02:13:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:13:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:13:06,698 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:13:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:13:06,804 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 02:13:06,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527582731] [2020-07-20 02:13:06,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:13:06,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:13:06,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203922579] [2020-07-20 02:13:06,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:13:06,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:13:06,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:13:06,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:13:06,806 INFO L87 Difference]: Start difference. First operand 37269 states and 55855 transitions. Second operand 4 states. [2020-07-20 02:13:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:13:17,400 INFO L93 Difference]: Finished difference Result 84943 states and 128225 transitions. [2020-07-20 02:13:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:13:17,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 02:13:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:13:17,463 INFO L225 Difference]: With dead ends: 84943 [2020-07-20 02:13:17,463 INFO L226 Difference]: Without dead ends: 54627 [2020-07-20 02:13:17,494 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 02:13:17,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54627 states. [2020-07-20 02:13:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54627 to 44745. [2020-07-20 02:13:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44745 states. [2020-07-20 02:13:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44745 states to 44745 states and 67907 transitions. [2020-07-20 02:13:20,046 INFO L78 Accepts]: Start accepts. Automaton has 44745 states and 67907 transitions. Word has length 330 [2020-07-20 02:13:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:13:20,047 INFO L479 AbstractCegarLoop]: Abstraction has 44745 states and 67907 transitions. [2020-07-20 02:13:20,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:13:20,047 INFO L276 IsEmpty]: Start isEmpty. Operand 44745 states and 67907 transitions. [2020-07-20 02:13:20,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-20 02:13:20,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:13:20,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:13:20,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-20 02:13:20,081 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 02:13:20,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:13:20,082 INFO L82 PathProgramCache]: Analyzing trace with hash 488749142, now seen corresponding path program 1 times [2020-07-20 02:13:20,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:13:20,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904298794] [2020-07-20 02:13:20,082 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:13:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:13:20,781 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:13:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:13:20,876 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 02:13:20,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904298794] [2020-07-20 02:13:20,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:13:20,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:13:20,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328351967] [2020-07-20 02:13:22,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:13:22,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:13:22,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:13:22,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:13:22,365 INFO L87 Difference]: Start difference. First operand 44745 states and 67907 transitions. Second operand 4 states. [2020-07-20 02:13:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:13:34,132 INFO L93 Difference]: Finished difference Result 103117 states and 157559 transitions. [2020-07-20 02:13:34,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:13:34,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2020-07-20 02:13:34,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:13:34,208 INFO L225 Difference]: With dead ends: 103117 [2020-07-20 02:13:34,208 INFO L226 Difference]: Without dead ends: 66729 [2020-07-20 02:13:34,246 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 02:13:34,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66729 states. [2020-07-20 02:13:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66729 to 58117. [2020-07-20 02:13:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58117 states. [2020-07-20 02:13:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58117 states to 58117 states and 89475 transitions. [2020-07-20 02:13:37,650 INFO L78 Accepts]: Start accepts. Automaton has 58117 states and 89475 transitions. Word has length 332 [2020-07-20 02:13:37,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:13:37,650 INFO L479 AbstractCegarLoop]: Abstraction has 58117 states and 89475 transitions. [2020-07-20 02:13:37,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:13:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 58117 states and 89475 transitions. [2020-07-20 02:13:37,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-20 02:13:37,677 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:13:37,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:13:37,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-20 02:13:37,677 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 02:13:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:13:37,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1851970655, now seen corresponding path program 1 times [2020-07-20 02:13:37,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:13:37,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730554624] [2020-07-20 02:13:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:13:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:13:38,351 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:13:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:13:38,429 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 02:13:38,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730554624] [2020-07-20 02:13:38,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:13:38,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:13:38,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227929457] [2020-07-20 02:13:38,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:13:38,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:13:38,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:13:38,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:13:38,431 INFO L87 Difference]: Start difference. First operand 58117 states and 89475 transitions. Second operand 4 states. [2020-07-20 02:13:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:13:58,150 INFO L93 Difference]: Finished difference Result 168405 states and 258851 transitions. [2020-07-20 02:13:58,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:13:58,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2020-07-20 02:13:58,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:13:58,289 INFO L225 Difference]: With dead ends: 168405 [2020-07-20 02:13:58,289 INFO L226 Difference]: Without dead ends: 112995 [2020-07-20 02:13:58,343 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 02:13:58,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112995 states. [2020-07-20 02:14:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112995 to 58445. [2020-07-20 02:14:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58445 states. [2020-07-20 02:14:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58445 states to 58445 states and 89913 transitions. [2020-07-20 02:14:02,148 INFO L78 Accepts]: Start accepts. Automaton has 58445 states and 89913 transitions. Word has length 332 [2020-07-20 02:14:02,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:14:02,149 INFO L479 AbstractCegarLoop]: Abstraction has 58445 states and 89913 transitions. [2020-07-20 02:14:02,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:14:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 58445 states and 89913 transitions. [2020-07-20 02:14:02,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 02:14:02,173 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:14:02,173 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 02:14:02,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-20 02:14:02,173 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 02:14:02,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:14:02,174 INFO L82 PathProgramCache]: Analyzing trace with hash -998110810, now seen corresponding path program 1 times [2020-07-20 02:14:02,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:14:02,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889791918] [2020-07-20 02:14:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:14:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:14:02,877 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:14:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:14:02,991 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 02:14:02,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889791918] [2020-07-20 02:14:02,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:14:02,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:14:02,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548777611] [2020-07-20 02:14:02,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:14:02,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:14:02,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:14:02,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:14:02,996 INFO L87 Difference]: Start difference. First operand 58445 states and 89913 transitions. Second operand 4 states. [2020-07-20 02:14:22,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:14:22,082 INFO L93 Difference]: Finished difference Result 168681 states and 259125 transitions. [2020-07-20 02:14:22,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:14:22,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-20 02:14:22,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:14:22,232 INFO L225 Difference]: With dead ends: 168681 [2020-07-20 02:14:22,232 INFO L226 Difference]: Without dead ends: 113291 [2020-07-20 02:14:22,285 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 02:14:22,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113291 states. [2020-07-20 02:14:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113291 to 58773. [2020-07-20 02:14:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58773 states. [2020-07-20 02:14:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58773 states to 58773 states and 90281 transitions. [2020-07-20 02:14:27,978 INFO L78 Accepts]: Start accepts. Automaton has 58773 states and 90281 transitions. Word has length 333 [2020-07-20 02:14:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:14:27,978 INFO L479 AbstractCegarLoop]: Abstraction has 58773 states and 90281 transitions. [2020-07-20 02:14:27,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:14:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 58773 states and 90281 transitions. [2020-07-20 02:14:28,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 02:14:28,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:14:28,003 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 02:14:28,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-20 02:14:28,003 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 02:14:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:14:28,004 INFO L82 PathProgramCache]: Analyzing trace with hash 174227197, now seen corresponding path program 1 times [2020-07-20 02:14:28,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:14:28,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16308954] [2020-07-20 02:14:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:14:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:14:28,877 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:14:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:14:29,030 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 02:14:29,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16308954] [2020-07-20 02:14:29,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:14:29,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 02:14:29,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817083863] [2020-07-20 02:14:29,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 02:14:29,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:14:29,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 02:14:29,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 02:14:29,033 INFO L87 Difference]: Start difference. First operand 58773 states and 90281 transitions. Second operand 6 states. [2020-07-20 02:14:29,717 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-07-20 02:14:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:14:40,530 INFO L93 Difference]: Finished difference Result 110009 states and 169376 transitions. [2020-07-20 02:14:40,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 02:14:40,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 333 [2020-07-20 02:14:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:14:40,596 INFO L225 Difference]: With dead ends: 110009 [2020-07-20 02:14:40,596 INFO L226 Difference]: Without dead ends: 58773 [2020-07-20 02:14:40,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 02:14:40,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58773 states. [2020-07-20 02:14:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58773 to 58773. [2020-07-20 02:14:44,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58773 states. [2020-07-20 02:14:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58773 states to 58773 states and 89583 transitions. [2020-07-20 02:14:44,596 INFO L78 Accepts]: Start accepts. Automaton has 58773 states and 89583 transitions. Word has length 333 [2020-07-20 02:14:44,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:14:44,597 INFO L479 AbstractCegarLoop]: Abstraction has 58773 states and 89583 transitions. [2020-07-20 02:14:44,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 02:14:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 58773 states and 89583 transitions. [2020-07-20 02:14:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 02:14:44,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:14:44,624 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 02:14:44,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-20 02:14:44,624 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 02:14:44,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:14:44,624 INFO L82 PathProgramCache]: Analyzing trace with hash 517892770, now seen corresponding path program 1 times [2020-07-20 02:14:44,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:14:44,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41084657] [2020-07-20 02:14:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:14:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:14:45,701 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:14:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:14:45,913 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 02:14:45,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41084657] [2020-07-20 02:14:45,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:14:45,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 02:14:45,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704808395] [2020-07-20 02:14:45,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 02:14:45,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:14:45,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 02:14:45,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-20 02:14:45,915 INFO L87 Difference]: Start difference. First operand 58773 states and 89583 transitions. Second operand 10 states. [2020-07-20 02:14:46,809 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-07-20 02:15:08,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:15:08,777 INFO L93 Difference]: Finished difference Result 191011 states and 295933 transitions. [2020-07-20 02:15:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 02:15:08,778 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 333 [2020-07-20 02:15:08,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:15:08,947 INFO L225 Difference]: With dead ends: 191011 [2020-07-20 02:15:08,947 INFO L226 Difference]: Without dead ends: 140423 [2020-07-20 02:15:08,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2020-07-20 02:15:09,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140423 states. [2020-07-20 02:15:18,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140423 to 103491. [2020-07-20 02:15:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103491 states. [2020-07-20 02:15:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103491 states to 103491 states and 158471 transitions. [2020-07-20 02:15:19,099 INFO L78 Accepts]: Start accepts. Automaton has 103491 states and 158471 transitions. Word has length 333 [2020-07-20 02:15:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:15:19,100 INFO L479 AbstractCegarLoop]: Abstraction has 103491 states and 158471 transitions. [2020-07-20 02:15:19,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 02:15:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 103491 states and 158471 transitions. [2020-07-20 02:15:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 02:15:19,130 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:15:19,130 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 02:15:19,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-20 02:15:19,130 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 02:15:19,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:15:19,131 INFO L82 PathProgramCache]: Analyzing trace with hash 72101730, now seen corresponding path program 1 times [2020-07-20 02:15:19,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:15:19,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647547930] [2020-07-20 02:15:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:15:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:15:20,032 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:15:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:15:20,148 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 02:15:20,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647547930] [2020-07-20 02:15:20,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:15:20,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 02:15:20,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591347744] [2020-07-20 02:15:20,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 02:15:20,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:15:20,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 02:15:20,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 02:15:20,150 INFO L87 Difference]: Start difference. First operand 103491 states and 158471 transitions. Second operand 5 states. [2020-07-20 02:15:47,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:15:47,868 INFO L93 Difference]: Finished difference Result 304088 states and 465816 transitions. [2020-07-20 02:15:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:15:47,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2020-07-20 02:15:47,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:15:48,143 INFO L225 Difference]: With dead ends: 304088 [2020-07-20 02:15:48,143 INFO L226 Difference]: Without dead ends: 201428 [2020-07-20 02:15:48,231 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 02:15:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201428 states. [2020-07-20 02:16:10,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201428 to 201312. [2020-07-20 02:16:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201312 states. [2020-07-20 02:16:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201312 states to 201312 states and 307058 transitions. [2020-07-20 02:16:10,642 INFO L78 Accepts]: Start accepts. Automaton has 201312 states and 307058 transitions. Word has length 333 [2020-07-20 02:16:10,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:16:10,643 INFO L479 AbstractCegarLoop]: Abstraction has 201312 states and 307058 transitions. [2020-07-20 02:16:10,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 02:16:10,643 INFO L276 IsEmpty]: Start isEmpty. Operand 201312 states and 307058 transitions. [2020-07-20 02:16:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-07-20 02:16:10,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:16:10,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:16:10,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-20 02:16:10,699 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 02:16:10,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:16:10,699 INFO L82 PathProgramCache]: Analyzing trace with hash 790630548, now seen corresponding path program 1 times [2020-07-20 02:16:10,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:16:10,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085301351] [2020-07-20 02:16:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:16:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:16:11,519 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:16:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:16:11,604 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 02:16:11,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085301351] [2020-07-20 02:16:11,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:16:11,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 02:16:11,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329466491] [2020-07-20 02:16:11,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 02:16:11,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:16:11,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 02:16:11,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 02:16:11,606 INFO L87 Difference]: Start difference. First operand 201312 states and 307058 transitions. Second operand 5 states. [2020-07-20 02:16:41,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:16:41,294 INFO L93 Difference]: Finished difference Result 289743 states and 441453 transitions. [2020-07-20 02:16:41,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 02:16:41,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2020-07-20 02:16:41,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:16:41,589 INFO L225 Difference]: With dead ends: 289743 [2020-07-20 02:16:41,589 INFO L226 Difference]: Without dead ends: 201488 [2020-07-20 02:16:41,667 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 02:16:41,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201488 states. [2020-07-20 02:17:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201488 to 197050. [2020-07-20 02:17:02,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197050 states. [2020-07-20 02:17:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197050 states to 197050 states and 300946 transitions. [2020-07-20 02:17:02,637 INFO L78 Accepts]: Start accepts. Automaton has 197050 states and 300946 transitions. Word has length 334 [2020-07-20 02:17:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:17:02,637 INFO L479 AbstractCegarLoop]: Abstraction has 197050 states and 300946 transitions. [2020-07-20 02:17:02,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 02:17:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 197050 states and 300946 transitions. [2020-07-20 02:17:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-07-20 02:17:02,692 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:17:02,692 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 02:17:02,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-20 02:17:02,693 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 02:17:02,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:17:02,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1635709975, now seen corresponding path program 1 times [2020-07-20 02:17:02,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:17:02,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201160340] [2020-07-20 02:17:02,693 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:17:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:17:03,340 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:17:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:17:03,883 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 02:17:03,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201160340] [2020-07-20 02:17:03,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:17:03,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:17:03,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653018647] [2020-07-20 02:17:03,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:17:03,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:17:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:17:03,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:17:03,886 INFO L87 Difference]: Start difference. First operand 197050 states and 300946 transitions. Second operand 4 states. [2020-07-20 02:17:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:17:55,400 INFO L93 Difference]: Finished difference Result 587256 states and 896670 transitions. [2020-07-20 02:17:55,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:17:55,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 337 [2020-07-20 02:17:55,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:17:55,918 INFO L225 Difference]: With dead ends: 587256 [2020-07-20 02:17:55,918 INFO L226 Difference]: Without dead ends: 391820 [2020-07-20 02:17:56,068 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 02:17:56,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391820 states. [2020-07-20 02:18:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391820 to 197394. [2020-07-20 02:18:21,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197394 states. [2020-07-20 02:18:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197394 states to 197394 states and 301314 transitions. [2020-07-20 02:18:21,394 INFO L78 Accepts]: Start accepts. Automaton has 197394 states and 301314 transitions. Word has length 337 [2020-07-20 02:18:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:18:21,395 INFO L479 AbstractCegarLoop]: Abstraction has 197394 states and 301314 transitions. [2020-07-20 02:18:21,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:18:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 197394 states and 301314 transitions. [2020-07-20 02:18:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-07-20 02:18:21,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:18:21,451 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 02:18:21,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-20 02:18:21,451 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 02:18:21,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:18:21,452 INFO L82 PathProgramCache]: Analyzing trace with hash -887460974, now seen corresponding path program 1 times [2020-07-20 02:18:21,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:18:21,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017261555] [2020-07-20 02:18:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:18:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:18:22,235 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:18:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:18:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 02:18:22,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017261555] [2020-07-20 02:18:22,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:18:22,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:18:22,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753516441] [2020-07-20 02:18:22,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:18:22,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:18:22,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:18:22,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:18:22,342 INFO L87 Difference]: Start difference. First operand 197394 states and 301314 transitions. Second operand 4 states. [2020-07-20 02:19:12,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:19:12,722 INFO L93 Difference]: Finished difference Result 549591 states and 837872 transitions. [2020-07-20 02:19:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:19:12,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 337 [2020-07-20 02:19:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:19:13,306 INFO L225 Difference]: With dead ends: 549591 [2020-07-20 02:19:13,306 INFO L226 Difference]: Without dead ends: 357437 [2020-07-20 02:19:13,469 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 02:19:13,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357437 states. [2020-07-20 02:19:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357437 to 357329. [2020-07-20 02:19:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357329 states. [2020-07-20 02:19:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357329 states to 357329 states and 541960 transitions. [2020-07-20 02:19:56,554 INFO L78 Accepts]: Start accepts. Automaton has 357329 states and 541960 transitions. Word has length 337 [2020-07-20 02:19:56,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:19:56,554 INFO L479 AbstractCegarLoop]: Abstraction has 357329 states and 541960 transitions. [2020-07-20 02:19:56,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 02:19:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 357329 states and 541960 transitions. [2020-07-20 02:19:56,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-20 02:19:56,664 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:19:56,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:19:56,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-20 02:19:56,665 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 02:19:56,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:19:56,665 INFO L82 PathProgramCache]: Analyzing trace with hash 116359141, now seen corresponding path program 1 times [2020-07-20 02:19:56,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:19:56,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205190473] [2020-07-20 02:19:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3a6e7d42 [2020-07-20 02:19:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:19:57,369 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 02:19:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:19:58,204 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 02:19:58,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205190473] [2020-07-20 02:19:58,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 02:19:58,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 02:19:58,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132259938] [2020-07-20 02:19:58,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 02:19:58,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:19:58,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 02:19:58,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 02:19:58,206 INFO L87 Difference]: Start difference. First operand 357329 states and 541960 transitions. Second operand 4 states. [2020-07-20 02:21:30,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:21:30,094 INFO L93 Difference]: Finished difference Result 1034004 states and 1567254 transitions. [2020-07-20 02:21:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 02:21:30,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 339 [2020-07-20 02:21:30,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:21:31,419 INFO L225 Difference]: With dead ends: 1034004 [2020-07-20 02:21:31,419 INFO L226 Difference]: Without dead ends: 679457 [2020-07-20 02:21:31,691 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 02:21:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679457 states.