/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:31:06,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:31:06,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:31:06,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:31:06,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:31:06,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:31:06,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:31:06,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:31:06,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:31:06,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:31:06,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:31:06,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:31:06,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:31:06,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:31:06,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:31:06,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:31:06,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:31:06,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:31:06,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:31:06,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:31:06,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:31:06,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:31:06,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:31:06,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:31:06,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:31:06,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:31:06,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:31:06,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:31:06,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:31:06,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:31:06,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:31:06,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:31:06,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:31:06,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:31:06,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:31:06,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:31:06,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:31:06,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:31:06,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:31:06,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:31:06,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:31:06,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 12:31:06,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:31:06,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:31:06,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:31:06,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:31:06,363 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:31:06,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:31:06,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:31:06,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:31:06,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:31:06,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:31:06,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:31:06,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:31:06,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:31:06,366 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:31:06,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:31:06,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:31:06,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:31:06,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:31:06,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:31:06,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:31:06,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:31:06,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:31:06,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:31:06,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:31:06,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:31:06,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:31:06,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:31:06,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:31:06,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:31:06,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:31:06,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:31:06,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:31:06,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:31:06,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:31:06,808 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:31:06,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2020-10-29 12:31:06,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5da645877/ceac7816aea8493e822e21cadc9dad12/FLAG77cef175d [2020-10-29 12:31:07,674 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:31:07,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2020-10-29 12:31:07,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5da645877/ceac7816aea8493e822e21cadc9dad12/FLAG77cef175d [2020-10-29 12:31:08,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5da645877/ceac7816aea8493e822e21cadc9dad12 [2020-10-29 12:31:08,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:31:08,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:31:08,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:31:08,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:31:08,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:31:08,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d7913b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08, skipping insertion in model container [2020-10-29 12:31:08,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:31:08,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:31:08,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:31:08,407 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:31:08,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:31:08,573 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:31:08,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08 WrapperNode [2020-10-29 12:31:08,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:31:08,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:31:08,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:31:08,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:31:08,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... [2020-10-29 12:31:08,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:31:08,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:31:08,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:31:08,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:31:08,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-29 12:31:08,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:31:08,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:31:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:31:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:31:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:31:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:31:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:31:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:31:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-29 12:31:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-29 12:31:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:31:08,830 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:31:08,830 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:31:08,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:31:08,830 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:31:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:31:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:31:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:31:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:31:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:31:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:31:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:31:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:31:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:31:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:31:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:31:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:31:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:31:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:31:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:31:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:31:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:31:10,038 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:31:10,038 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:31:10,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:31:10 BoogieIcfgContainer [2020-10-29 12:31:10,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:31:10,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:31:10,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:31:10,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:31:10,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:31:08" (1/3) ... [2020-10-29 12:31:10,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7dd6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:31:10, skipping insertion in model container [2020-10-29 12:31:10,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:31:08" (2/3) ... [2020-10-29 12:31:10,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7dd6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:31:10, skipping insertion in model container [2020-10-29 12:31:10,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:31:10" (3/3) ... [2020-10-29 12:31:10,051 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6_overflow.ufo.UNBOUNDED.pals.c [2020-10-29 12:31:10,064 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:31:10,070 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:31:10,084 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:31:10,114 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:31:10,114 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:31:10,114 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:31:10,115 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:31:10,115 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:31:10,115 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:31:10,115 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:31:10,115 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:31:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2020-10-29 12:31:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-29 12:31:10,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:10,153 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] [2020-10-29 12:31:10,153 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:10,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:10,161 INFO L82 PathProgramCache]: Analyzing trace with hash 151121957, now seen corresponding path program 1 times [2020-10-29 12:31:10,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:10,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226496575] [2020-10-29 12:31:10,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:10,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:10,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:10,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:31:10,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:10,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-29 12:31:10,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:10,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:10,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:10,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:31:10,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:10,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 12:31:11,538 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:31:11,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:11,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 12:31:11,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:11,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:11,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:31:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:11,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:11,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:31:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:31:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:11,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:11,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:31:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:11,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:11,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:11,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:31:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:11,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:31:11,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:31:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:11,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:11,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:31:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:11,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:11,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 12:31:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:11,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:11,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:11,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 12:31:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:11,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:11,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:11,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:11,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:11,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:11,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:11,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:11,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226496575] [2020-10-29 12:31:11,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:11,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 12:31:11,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448980677] [2020-10-29 12:31:11,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 12:31:11,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:11,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 12:31:11,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:31:11,988 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 9 states. [2020-10-29 12:31:13,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:13,772 INFO L93 Difference]: Finished difference Result 243 states and 361 transitions. [2020-10-29 12:31:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 12:31:13,775 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-29 12:31:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:13,787 INFO L225 Difference]: With dead ends: 243 [2020-10-29 12:31:13,788 INFO L226 Difference]: Without dead ends: 145 [2020-10-29 12:31:13,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:13,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-29 12:31:13,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-29 12:31:13,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-29 12:31:13,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 220 transitions. [2020-10-29 12:31:13,862 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 220 transitions. Word has length 75 [2020-10-29 12:31:13,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:13,863 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 220 transitions. [2020-10-29 12:31:13,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 12:31:13,863 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2020-10-29 12:31:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-29 12:31:13,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:13,867 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] [2020-10-29 12:31:13,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:31:13,868 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:13,869 INFO L82 PathProgramCache]: Analyzing trace with hash 352945891, now seen corresponding path program 1 times [2020-10-29 12:31:13,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:13,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530859103] [2020-10-29 12:31:13,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:14,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:31:14,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-10-29 12:31:14,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:14,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:31:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:31:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:15,046 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:31:15,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:15,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:31:15,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:15,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:15,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:15,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:15,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:15,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:31:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:31:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:31:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:15,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:15,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:31:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:15,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:15,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:31:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:15,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:31:15,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:15,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:15,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:31:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:15,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:31:15,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:15,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:31:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:15,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:15,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:15,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:31:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:15,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:15,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:15,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:15,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 12:31:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:15,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:31:15,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:15,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 12:31:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:15,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:15,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:15,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:15,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:15,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:15,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:15,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:15,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:15,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530859103] [2020-10-29 12:31:15,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:15,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:15,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655779366] [2020-10-29 12:31:15,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:15,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:15,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:15,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:15,588 INFO L87 Difference]: Start difference. First operand 145 states and 220 transitions. Second operand 15 states. [2020-10-29 12:31:15,928 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:31:16,256 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-29 12:31:16,682 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:31:16,994 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:31:19,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:19,395 INFO L93 Difference]: Finished difference Result 238 states and 349 transitions. [2020-10-29 12:31:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 12:31:19,396 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 75 [2020-10-29 12:31:19,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:19,399 INFO L225 Difference]: With dead ends: 238 [2020-10-29 12:31:19,400 INFO L226 Difference]: Without dead ends: 145 [2020-10-29 12:31:19,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-29 12:31:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-29 12:31:19,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-29 12:31:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-29 12:31:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 180 transitions. [2020-10-29 12:31:19,427 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 180 transitions. Word has length 75 [2020-10-29 12:31:19,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:19,428 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 180 transitions. [2020-10-29 12:31:19,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:31:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 180 transitions. [2020-10-29 12:31:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-29 12:31:19,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:19,433 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] [2020-10-29 12:31:19,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:31:19,433 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:19,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:19,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1619156785, now seen corresponding path program 1 times [2020-10-29 12:31:19,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:19,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684732900] [2020-10-29 12:31:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:20,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 12:31:24,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:31:24,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 12:31:24,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-29 12:31:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:31:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:31:24,839 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:31:24,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:24,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 12:31:24,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:24,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:31:24,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:31:24,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 12:31:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:31:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:24,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:24,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:24,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:31:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:25,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:25,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:31:25,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:25,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:25,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:25,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:25,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:31:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:25,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:25,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:25,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:25,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:25,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:25,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:25,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:31:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:25,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:25,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:25,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:25,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:25,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:25,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:25,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:25,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:25,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:25,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:25,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:25,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:25,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:25,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:31:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:25,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:25,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:25,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:25,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:25,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:25,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:25,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:25,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:25,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 12:31:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:25,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:25,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:25,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:31:25,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:25,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:25,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:25,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:31:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:25,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:25,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:25,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:25,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:25,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:25,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:25,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:25,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684732900] [2020-10-29 12:31:25,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:25,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:31:25,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774346923] [2020-10-29 12:31:25,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:31:25,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:25,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:31:25,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:31:25,320 INFO L87 Difference]: Start difference. First operand 145 states and 180 transitions. Second operand 12 states. [2020-10-29 12:31:25,595 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:31:28,295 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:28,670 INFO L93 Difference]: Finished difference Result 313 states and 416 transitions. [2020-10-29 12:31:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:31:28,671 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-29 12:31:28,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:28,679 INFO L225 Difference]: With dead ends: 313 [2020-10-29 12:31:28,684 INFO L226 Difference]: Without dead ends: 226 [2020-10-29 12:31:28,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-29 12:31:28,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-29 12:31:28,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 223. [2020-10-29 12:31:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-29 12:31:28,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 290 transitions. [2020-10-29 12:31:28,753 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 290 transitions. Word has length 114 [2020-10-29 12:31:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:28,754 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 290 transitions. [2020-10-29 12:31:28,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:31:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 290 transitions. [2020-10-29 12:31:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-29 12:31:28,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:28,760 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] [2020-10-29 12:31:28,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:31:28,760 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash 497625625, now seen corresponding path program 1 times [2020-10-29 12:31:28,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:28,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059523426] [2020-10-29 12:31:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:28,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:28,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:28,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:33,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:33,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 12:31:33,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:31:33,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 12:31:33,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:33,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:33,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:31:33,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:31:33,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:31:33,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,162 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:31:34,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:34,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:34,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:31:34,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 12:31:34,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 12:31:34,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:31:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:34,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:34,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:31:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:31:34,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:34,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:34,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:31:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:31:34,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:31:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:31:34,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:34,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:34,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:31:34,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:34,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:34,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:31:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:31:34,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 12:31:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:31:34,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:31:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:34,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:31:34,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:34,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:31:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:31:34,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:34,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059523426] [2020-10-29 12:31:34,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:34,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-29 12:31:34,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714823083] [2020-10-29 12:31:34,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 12:31:34,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:34,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 12:31:34,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:31:34,929 INFO L87 Difference]: Start difference. First operand 223 states and 290 transitions. Second operand 22 states. [2020-10-29 12:31:35,327 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:31:35,676 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-29 12:31:35,981 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:31:36,296 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-29 12:31:36,646 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-29 12:31:36,990 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:31:37,340 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:31:37,667 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:38,350 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:39,295 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:40,596 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:41,593 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:31:42,307 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:42,520 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:31:43,546 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:31:43,880 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:31:44,188 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:31:44,491 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-29 12:31:44,783 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:31:46,136 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:31:48,130 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:48,907 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:31:49,059 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:31:49,956 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:50,104 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:50,257 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:31:50,765 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:31:50,909 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:31:51,502 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:51,645 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:51,783 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:31:52,282 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:31:52,880 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:53,023 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:53,649 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:31:54,110 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:31:54,255 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:54,395 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:31:54,550 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:31:55,029 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:31:56,299 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-29 12:31:56,798 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:31:56,969 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:31:57,196 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:31:57,378 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:57,607 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:31:57,782 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:57,999 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:31:58,181 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:58,399 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:31:58,583 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:58,727 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:58,979 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:31:59,140 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:31:59,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:59,407 INFO L93 Difference]: Finished difference Result 2446 states and 3467 transitions. [2020-10-29 12:31:59,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2020-10-29 12:31:59,408 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 114 [2020-10-29 12:31:59,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:59,428 INFO L225 Difference]: With dead ends: 2446 [2020-10-29 12:31:59,428 INFO L226 Difference]: Without dead ends: 2281 [2020-10-29 12:31:59,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7710 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=3493, Invalid=17387, Unknown=0, NotChecked=0, Total=20880 [2020-10-29 12:31:59,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2020-10-29 12:31:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2245. [2020-10-29 12:31:59,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2245 states. [2020-10-29 12:31:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3179 transitions. [2020-10-29 12:31:59,717 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3179 transitions. Word has length 114 [2020-10-29 12:31:59,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:59,718 INFO L481 AbstractCegarLoop]: Abstraction has 2245 states and 3179 transitions. [2020-10-29 12:31:59,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 12:31:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3179 transitions. [2020-10-29 12:31:59,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:31:59,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:59,722 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] [2020-10-29 12:31:59,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:31:59,728 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:59,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:59,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1620769897, now seen corresponding path program 1 times [2020-10-29 12:31:59,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:59,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635180006] [2020-10-29 12:31:59,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:59,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:59,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:59,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:00,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:04,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:04,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:32:04,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:32:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 12:32:04,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:04,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:32:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 12:32:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,139 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:32:05,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:05,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:05,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:05,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:32:05,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:32:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:32:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:32:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:05,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:05,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:05,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:32:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:05,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:32:05,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:05,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:32:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:05,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 12:32:05,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:05,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:32:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:05,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:05,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:05,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:32:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:05,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:05,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:05,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:32:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:05,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:05,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:05,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 12:32:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:05,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:05,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:05,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:05,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:32:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:05,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:05,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:05,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:32:05,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:32:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:05,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:05,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:32:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:32:05,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635180006] [2020-10-29 12:32:05,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:05,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:32:05,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419389030] [2020-10-29 12:32:05,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:32:05,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:05,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:32:05,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:32:05,623 INFO L87 Difference]: Start difference. First operand 2245 states and 3179 transitions. Second operand 14 states. [2020-10-29 12:32:05,930 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:32:06,975 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:32:07,129 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:32:07,261 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:32:09,714 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:32:11,161 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:32:13,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:13,075 INFO L93 Difference]: Finished difference Result 10454 states and 14907 transitions. [2020-10-29 12:32:13,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 12:32:13,076 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 116 [2020-10-29 12:32:13,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:13,124 INFO L225 Difference]: With dead ends: 10454 [2020-10-29 12:32:13,124 INFO L226 Difference]: Without dead ends: 8267 [2020-10-29 12:32:13,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=375, Invalid=1431, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 12:32:13,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2020-10-29 12:32:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 8258. [2020-10-29 12:32:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8258 states. [2020-10-29 12:32:13,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8258 states to 8258 states and 11644 transitions. [2020-10-29 12:32:13,910 INFO L78 Accepts]: Start accepts. Automaton has 8258 states and 11644 transitions. Word has length 116 [2020-10-29 12:32:13,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:13,910 INFO L481 AbstractCegarLoop]: Abstraction has 8258 states and 11644 transitions. [2020-10-29 12:32:13,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:32:13,910 INFO L276 IsEmpty]: Start isEmpty. Operand 8258 states and 11644 transitions. [2020-10-29 12:32:13,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:32:13,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:13,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:32:13,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:32:13,915 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:13,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:13,915 INFO L82 PathProgramCache]: Analyzing trace with hash 356699425, now seen corresponding path program 1 times [2020-10-29 12:32:13,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:13,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332062872] [2020-10-29 12:32:13,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:13,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:14,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:14,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:18,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:18,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:32:18,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:32:18,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 12:32:18,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:18,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:18,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:32:18,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:32:18,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 12:32:18,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:19,376 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:32:19,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:19,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:19,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:19,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:19,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:32:19,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:19,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:19,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:19,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:19,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:32:19,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 12:32:19,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:19,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:32:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 12:32:19,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:19,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:32:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:19,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:19,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:19,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:19,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:19,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:19,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:19,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:19,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:19,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:19,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:19,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:32:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:19,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:19,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:19,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:19,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:32:19,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:19,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:19,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:19,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:32:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:19,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:19,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:19,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:32:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:19,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:19,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:19,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:19,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:32:19,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:19,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:19,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:32:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:19,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:19,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:32:19,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:19,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:20,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:32:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:20,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:20,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:20,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:20,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:20,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:32:20,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:20,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:20,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:20,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:20,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:20,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:20,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 12:32:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:20,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:20,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:20,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:20,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:32:20,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:20,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:20,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:32:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:20,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:20,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:32:20,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:32:20,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:20,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:32:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:32:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:32:20,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332062872] [2020-10-29 12:32:20,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:20,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-29 12:32:20,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846574736] [2020-10-29 12:32:20,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 12:32:20,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:20,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 12:32:20,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:32:20,352 INFO L87 Difference]: Start difference. First operand 8258 states and 11644 transitions. Second operand 22 states. [2020-10-29 12:32:20,729 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:32:21,057 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:32:21,398 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-29 12:32:21,820 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:32:22,225 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:32:22,639 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:32:23,024 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:23,491 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:23,782 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-29 12:32:24,090 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:32:24,575 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:24,871 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:32:25,121 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:32:25,285 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:32:25,426 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:32:26,227 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:32:26,585 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-29 12:32:26,971 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-29 12:32:27,123 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:32:27,264 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:27,422 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:32:27,711 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:32:27,861 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:28,015 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:32:28,625 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:32:29,040 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-29 12:32:29,502 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:32:29,678 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-29 12:32:29,842 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:32:30,000 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:30,170 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:32:30,484 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:32:30,649 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:32:30,806 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:30,968 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:31,111 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:32:32,017 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-29 12:32:32,517 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:32,814 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:32:33,012 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:33,165 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:32:33,302 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:32:33,656 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:33,822 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:36,032 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:32:36,188 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:32:36,343 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:36,493 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:32:37,714 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:37,860 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:32:38,356 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:32:38,528 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:38,694 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:32:38,839 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:32:39,876 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:40,029 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:40,546 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:32:40,726 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:40,885 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:32:41,478 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:32:41,786 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:32:41,938 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:42,386 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:32:42,592 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:32:42,834 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:32:43,101 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:43,373 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:32:43,898 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:32:44,171 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:32:44,347 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:32:44,884 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:32:45,104 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:32:45,252 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:32:45,398 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:32:45,804 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:46,488 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-29 12:32:48,299 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:32:48,502 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:32:49,106 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:32:49,335 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:32:49,934 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:32:50,279 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:32:50,840 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:51,121 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:32:51,673 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:32:51,987 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:32:52,614 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:32:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:55,528 INFO L93 Difference]: Finished difference Result 22929 states and 35511 transitions. [2020-10-29 12:32:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2020-10-29 12:32:55,529 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 116 [2020-10-29 12:32:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:55,657 INFO L225 Difference]: With dead ends: 22929 [2020-10-29 12:32:55,657 INFO L226 Difference]: Without dead ends: 14729 [2020-10-29 12:32:55,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9473 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=4376, Invalid=19494, Unknown=0, NotChecked=0, Total=23870 [2020-10-29 12:32:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14729 states. [2020-10-29 12:32:57,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14729 to 11346. [2020-10-29 12:32:57,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11346 states. [2020-10-29 12:32:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11346 states to 11346 states and 16097 transitions. [2020-10-29 12:32:57,210 INFO L78 Accepts]: Start accepts. Automaton has 11346 states and 16097 transitions. Word has length 116 [2020-10-29 12:32:57,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:57,210 INFO L481 AbstractCegarLoop]: Abstraction has 11346 states and 16097 transitions. [2020-10-29 12:32:57,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 12:32:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 11346 states and 16097 transitions. [2020-10-29 12:32:57,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:32:57,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:57,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:32:57,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:32:57,219 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:57,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:57,219 INFO L82 PathProgramCache]: Analyzing trace with hash -559070269, now seen corresponding path program 1 times [2020-10-29 12:32:57,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:57,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823972164] [2020-10-29 12:32:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:57,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:33:02,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:33:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 12:33:02,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:33:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:33:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 12:33:02,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:02,708 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:33:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:02,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:02,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:33:02,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:02,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:33:02,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:02,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:02,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:33:02,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:02,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:33:02,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:33:02,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:02,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 12:33:02,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:02,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:33:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:02,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:02,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:02,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:02,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:33:02,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:33:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:02,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:02,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:02,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:33:02,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:02,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:33:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:02,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:02,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:33:02,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:33:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:02,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:02,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:02,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:02,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:02,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:33:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:02,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:02,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:02,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:02,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:33:02,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:02,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:03,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:33:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:03,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:03,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:33:03,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:03,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:33:03,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:03,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:33:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:03,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:33:03,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:33:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:03,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:03,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:33:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:03,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:03,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:33:03,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823972164] [2020-10-29 12:33:03,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:03,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 12:33:03,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28426039] [2020-10-29 12:33:03,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:33:03,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:03,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:33:03,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:33:03,207 INFO L87 Difference]: Start difference. First operand 11346 states and 16097 transitions. Second operand 16 states. [2020-10-29 12:33:03,530 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:33:03,856 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-29 12:33:04,606 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:33:05,853 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:33:06,024 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:33:07,421 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:33:07,635 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:33:07,869 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-29 12:33:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:09,064 INFO L93 Difference]: Finished difference Result 25016 states and 35162 transitions. [2020-10-29 12:33:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 12:33:09,065 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 116 [2020-10-29 12:33:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:09,143 INFO L225 Difference]: With dead ends: 25016 [2020-10-29 12:33:09,144 INFO L226 Difference]: Without dead ends: 13728 [2020-10-29 12:33:09,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=359, Invalid=973, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 12:33:09,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13728 states. [2020-10-29 12:33:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13728 to 11743. [2020-10-29 12:33:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11743 states. [2020-10-29 12:33:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11743 states to 11743 states and 16640 transitions. [2020-10-29 12:33:10,606 INFO L78 Accepts]: Start accepts. Automaton has 11743 states and 16640 transitions. Word has length 116 [2020-10-29 12:33:10,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:10,607 INFO L481 AbstractCegarLoop]: Abstraction has 11743 states and 16640 transitions. [2020-10-29 12:33:10,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:33:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 11743 states and 16640 transitions. [2020-10-29 12:33:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:33:10,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:10,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:33:10,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:33:10,612 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:10,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1203880433, now seen corresponding path program 1 times [2020-10-29 12:33:10,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:10,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157087387] [2020-10-29 12:33:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:10,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:10,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:10,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:11,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:11,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:15,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:15,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:15,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:33:15,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:33:15,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 12:33:15,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:15,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:15,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:33:15,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:33:15,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 12:33:15,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,068 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:33:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:33:16,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:33:16,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:33:16,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:33:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 12:33:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:33:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:16,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:33:16,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 12:33:16,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:33:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:16,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:16,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:16,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:33:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:16,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:33:16,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:33:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:16,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:33:16,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:33:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:33:16,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:33:16,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:33:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:33:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:33:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:16,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:33:16,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:16,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:16,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:16,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:33:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:16,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:16,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:33:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:16,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:16,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:33:16,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:33:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:16,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:33:16,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:16,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:33:16,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157087387] [2020-10-29 12:33:16,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:16,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 12:33:16,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547340000] [2020-10-29 12:33:16,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:33:16,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:16,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:33:16,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:33:16,547 INFO L87 Difference]: Start difference. First operand 11743 states and 16640 transitions. Second operand 16 states. [2020-10-29 12:33:17,201 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2020-10-29 12:33:17,520 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:33:18,514 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 176 [2020-10-29 12:33:18,740 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-29 12:33:19,078 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-29 12:33:19,400 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-29 12:33:19,761 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-29 12:33:20,034 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-29 12:33:20,258 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-29 12:33:20,561 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-29 12:33:20,876 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-29 12:33:21,330 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-10-29 12:33:21,617 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-29 12:33:21,961 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-29 12:33:22,286 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-29 12:33:22,608 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-29 12:33:22,957 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-29 12:33:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:24,024 INFO L93 Difference]: Finished difference Result 22502 states and 31755 transitions. [2020-10-29 12:33:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 12:33:24,024 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 116 [2020-10-29 12:33:24,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:24,082 INFO L225 Difference]: With dead ends: 22502 [2020-10-29 12:33:24,082 INFO L226 Difference]: Without dead ends: 15039 [2020-10-29 12:33:24,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 12:33:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15039 states. [2020-10-29 12:33:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15039 to 11928. [2020-10-29 12:33:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11928 states. [2020-10-29 12:33:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11928 states to 11928 states and 16895 transitions. [2020-10-29 12:33:25,396 INFO L78 Accepts]: Start accepts. Automaton has 11928 states and 16895 transitions. Word has length 116 [2020-10-29 12:33:25,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:25,396 INFO L481 AbstractCegarLoop]: Abstraction has 11928 states and 16895 transitions. [2020-10-29 12:33:25,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:33:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 11928 states and 16895 transitions. [2020-10-29 12:33:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:33:25,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:25,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:33:25,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:33:25,399 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:25,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:25,400 INFO L82 PathProgramCache]: Analyzing trace with hash -754355699, now seen corresponding path program 1 times [2020-10-29 12:33:25,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:25,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438472036] [2020-10-29 12:33:25,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:25,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:25,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:25,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:25,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:25,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:26,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:33:30,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:33:30,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 12:33:30,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:30,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 12:33:30,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 12:33:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:30,718 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:33:30,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:30,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:33:30,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:30,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:30,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:30,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:33:30,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:33:30,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:33:30,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:30,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:33:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:30,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:30,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:33:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:30,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:30,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:33:30,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:33:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:30,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:30,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:30,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:33:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:33:30,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:30,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:30,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:33:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:33:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:30,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:33:30,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:30,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:30,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:30,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:33:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:30,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:30,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:30,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:30,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:30,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:33:30,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:30,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:30,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:31,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:33:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:31,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:31,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:31,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:31,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:31,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:31,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:31,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:31,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:31,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:33:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:31,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:31,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:31,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:33:31,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:31,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:33:31,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:31,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:33:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:31,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:33:31,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438472036] [2020-10-29 12:33:31,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:31,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:33:31,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571843538] [2020-10-29 12:33:31,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:33:31,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:31,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:33:31,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:33:31,127 INFO L87 Difference]: Start difference. First operand 11928 states and 16895 transitions. Second operand 12 states. [2020-10-29 12:33:31,419 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:33:31,871 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:33:33,980 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:33:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:36,173 INFO L93 Difference]: Finished difference Result 33925 states and 48345 transitions. [2020-10-29 12:33:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:33:36,174 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-29 12:33:36,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:36,264 INFO L225 Difference]: With dead ends: 33925 [2020-10-29 12:33:36,264 INFO L226 Difference]: Without dead ends: 22355 [2020-10-29 12:33:36,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-29 12:33:36,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22355 states. [2020-10-29 12:33:38,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22355 to 21961. [2020-10-29 12:33:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21961 states. [2020-10-29 12:33:38,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21961 states to 21961 states and 30929 transitions. [2020-10-29 12:33:38,535 INFO L78 Accepts]: Start accepts. Automaton has 21961 states and 30929 transitions. Word has length 116 [2020-10-29 12:33:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:38,536 INFO L481 AbstractCegarLoop]: Abstraction has 21961 states and 30929 transitions. [2020-10-29 12:33:38,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:33:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 21961 states and 30929 transitions. [2020-10-29 12:33:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:33:38,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:38,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:33:38,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:33:38,539 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:38,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1499938429, now seen corresponding path program 1 times [2020-10-29 12:33:38,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:38,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87456144] [2020-10-29 12:33:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:38,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:38,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:43,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 12:33:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:43,856 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:33:43,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:43,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:43,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:43,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:43,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:43,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:33:43,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:43,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:43,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:43,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:43,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:33:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:43,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:43,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:43,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:33:43,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:43,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:33:43,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:43,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:43,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:33:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:43,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:33:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:43,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:43,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:43,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:43,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:43,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:33:43,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:43,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:43,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:43,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:43,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:33:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:43,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:33:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:43,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:43,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:43,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:43,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:43,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:33:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:43,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:33:43,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:33:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:44,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:44,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:44,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:44,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:44,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:44,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:44,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:44,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:44,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:33:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:44,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:44,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:44,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:44,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:44,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:44,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:44,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:44,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:44,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:33:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:44,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:44,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:33:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:44,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:44,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:44,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:33:44,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:44,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:33:44,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:44,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:33:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:44,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:33:44,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87456144] [2020-10-29 12:33:44,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:44,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:33:44,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912902976] [2020-10-29 12:33:44,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:33:44,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:44,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:33:44,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:33:44,178 INFO L87 Difference]: Start difference. First operand 21961 states and 30929 transitions. Second operand 12 states. [2020-10-29 12:33:44,586 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:33:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:51,020 INFO L93 Difference]: Finished difference Result 63333 states and 89569 transitions. [2020-10-29 12:33:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:33:51,021 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-29 12:33:51,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:51,191 INFO L225 Difference]: With dead ends: 63333 [2020-10-29 12:33:51,191 INFO L226 Difference]: Without dead ends: 41620 [2020-10-29 12:33:51,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-29 12:33:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41620 states. [2020-10-29 12:33:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41620 to 41617. [2020-10-29 12:33:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41617 states. [2020-10-29 12:33:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41617 states to 41617 states and 58119 transitions. [2020-10-29 12:33:55,618 INFO L78 Accepts]: Start accepts. Automaton has 41617 states and 58119 transitions. Word has length 116 [2020-10-29 12:33:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:55,619 INFO L481 AbstractCegarLoop]: Abstraction has 41617 states and 58119 transitions. [2020-10-29 12:33:55,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:33:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 41617 states and 58119 transitions. [2020-10-29 12:33:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:33:55,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:55,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:33:55,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:33:55,621 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:55,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:55,622 INFO L82 PathProgramCache]: Analyzing trace with hash -489864883, now seen corresponding path program 1 times [2020-10-29 12:33:55,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:55,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179124539] [2020-10-29 12:33:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:55,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:55,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:55,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:55,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:57,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:00,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:00,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:34:00,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:34:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 12:34:00,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:00,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:34:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:34:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 12:34:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,134 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:34:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:34:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:34:01,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:34:01,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:34:01,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:34:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:34:01,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:34:01,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:34:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 12:34:01,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:34:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:34:01,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:34:01,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:34:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:34:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:01,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:34:01,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:34:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:01,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:34:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:34:01,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:34:01,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:34:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:34:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:34:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:34:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:01,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:01,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:01,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:01,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:01,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:34:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:34:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:01,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:34:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:01,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:34:01,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179124539] [2020-10-29 12:34:01,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:34:01,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 12:34:01,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987357044] [2020-10-29 12:34:01,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:34:01,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:34:01,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:34:01,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:34:01,520 INFO L87 Difference]: Start difference. First operand 41617 states and 58119 transitions. Second operand 16 states. [2020-10-29 12:34:02,112 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 174 [2020-10-29 12:34:02,430 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:34:03,373 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2020-10-29 12:34:03,584 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-29 12:34:03,897 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-29 12:34:04,240 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-29 12:34:04,478 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-29 12:34:04,727 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-29 12:34:05,015 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-29 12:34:05,275 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-29 12:34:05,538 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-29 12:34:05,938 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-29 12:34:06,215 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-29 12:34:06,522 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-29 12:34:06,802 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-29 12:34:07,168 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-29 12:34:07,607 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-29 12:34:12,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:34:12,144 INFO L93 Difference]: Finished difference Result 77318 states and 107181 transitions. [2020-10-29 12:34:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 12:34:12,145 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 116 [2020-10-29 12:34:12,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:34:12,340 INFO L225 Difference]: With dead ends: 77318 [2020-10-29 12:34:12,340 INFO L226 Difference]: Without dead ends: 57338 [2020-10-29 12:34:12,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 12:34:12,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57338 states. [2020-10-29 12:34:17,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57338 to 41546. [2020-10-29 12:34:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41546 states. [2020-10-29 12:34:17,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41546 states to 41546 states and 58033 transitions. [2020-10-29 12:34:17,478 INFO L78 Accepts]: Start accepts. Automaton has 41546 states and 58033 transitions. Word has length 116 [2020-10-29 12:34:17,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:34:17,478 INFO L481 AbstractCegarLoop]: Abstraction has 41546 states and 58033 transitions. [2020-10-29 12:34:17,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:34:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 41546 states and 58033 transitions. [2020-10-29 12:34:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:34:17,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:34:17,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:34:17,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 12:34:17,480 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:34:17,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:34:17,481 INFO L82 PathProgramCache]: Analyzing trace with hash -584666235, now seen corresponding path program 1 times [2020-10-29 12:34:17,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:34:17,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584424348] [2020-10-29 12:34:17,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:34:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:17,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:17,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:17,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:18,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:22,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:22,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:34:22,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:34:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 12:34:22,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:22,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:34:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:34:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 12:34:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:22,880 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:34:22,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:34:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:22,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:22,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:34:22,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:22,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:34:22,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:22,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:34:22,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:22,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:34:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:22,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:22,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 12:34:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:34:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:22,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:34:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:22,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:34:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:22,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:22,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:22,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:22,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:22,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:34:22,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:22,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:22,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:22,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:22,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:22,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:23,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:34:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:23,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:23,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:23,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:34:23,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:23,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:34:23,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:23,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:23,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:34:23,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:34:23,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:34:23,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:23,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:34:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:23,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:23,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:23,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:23,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:23,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:23,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:23,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:34:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:23,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:23,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:23,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:23,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:23,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:23,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:23,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:23,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:34:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:23,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:23,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:34:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:23,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:23,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:23,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:34:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:23,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:23,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:23,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:34:23,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:23,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:34:23,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:23,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:34:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:23,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:34:23,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584424348] [2020-10-29 12:34:23,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:34:23,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 12:34:23,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967327562] [2020-10-29 12:34:23,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:34:23,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:34:23,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:34:23,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:34:23,285 INFO L87 Difference]: Start difference. First operand 41546 states and 58033 transitions. Second operand 16 states. [2020-10-29 12:34:23,944 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 174 [2020-10-29 12:34:24,287 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:34:25,314 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2020-10-29 12:34:25,542 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-29 12:34:26,326 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 178 [2020-10-29 12:34:26,607 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-29 12:34:26,888 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-29 12:34:27,196 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-29 12:34:27,454 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-29 12:34:27,713 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-29 12:34:28,112 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-29 12:34:28,405 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-29 12:34:28,636 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-29 12:34:28,872 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-29 12:34:29,162 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-29 12:34:29,451 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-29 12:34:29,837 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-29 12:34:30,344 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-29 12:34:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:34:36,215 INFO L93 Difference]: Finished difference Result 106777 states and 148409 transitions. [2020-10-29 12:34:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 12:34:36,215 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 116 [2020-10-29 12:34:36,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:34:36,538 INFO L225 Difference]: With dead ends: 106777 [2020-10-29 12:34:36,538 INFO L226 Difference]: Without dead ends: 65324 [2020-10-29 12:34:36,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=381, Invalid=1025, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 12:34:36,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65324 states.