/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=DEEPEST --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/eca-rers2012/Problem14_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 18:18:06,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 18:18:06,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 18:18:06,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 18:18:06,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 18:18:06,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 18:18:06,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 18:18:06,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 18:18:06,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 18:18:06,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 18:18:06,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 18:18:06,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 18:18:06,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 18:18:06,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 18:18:06,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 18:18:06,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 18:18:06,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 18:18:06,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 18:18:06,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 18:18:06,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 18:18:06,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 18:18:06,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 18:18:06,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 18:18:06,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 18:18:06,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 18:18:06,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 18:18:06,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 18:18:06,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 18:18:06,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 18:18:06,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 18:18:06,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 18:18:06,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 18:18:06,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 18:18:06,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 18:18:06,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 18:18:06,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 18:18:06,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 18:18:06,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 18:18:06,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 18:18:06,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 18:18:06,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 18:18:06,571 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 [2020-10-27 18:18:06,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 18:18:06,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 18:18:06,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 18:18:06,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 18:18:06,629 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 18:18:06,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 18:18:06,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 18:18:06,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 18:18:06,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 18:18:06,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 18:18:06,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 18:18:06,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 18:18:06,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 18:18:06,633 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 18:18:06,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 18:18:06,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 18:18:06,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 18:18:06,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 18:18:06,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 18:18:06,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 18:18:06,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 18:18:06,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 18:18:06,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 18:18:06,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 18:18:06,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 18:18:06,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 18:18:06,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 18:18:06,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 18:18:06,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 18:18:06,637 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 18:18:07,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 18:18:07,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 18:18:07,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 18:18:07,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 18:18:07,049 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 18:18:07,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label53.c [2020-10-27 18:18:07,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd2e616a4/c6ee585d100c4d86acb88e8c4915f75f/FLAGed04dcc8b [2020-10-27 18:18:07,929 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 18:18:07,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label53.c [2020-10-27 18:18:07,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd2e616a4/c6ee585d100c4d86acb88e8c4915f75f/FLAGed04dcc8b [2020-10-27 18:18:08,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd2e616a4/c6ee585d100c4d86acb88e8c4915f75f [2020-10-27 18:18:08,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 18:18:08,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 18:18:08,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 18:18:08,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 18:18:08,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 18:18:08,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:18:08" (1/1) ... [2020-10-27 18:18:08,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b19597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:08, skipping insertion in model container [2020-10-27 18:18:08,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:18:08" (1/1) ... [2020-10-27 18:18:08,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 18:18:08,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 18:18:08,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:18:08,751 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 18:18:09,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:18:09,031 INFO L208 MainTranslator]: Completed translation [2020-10-27 18:18:09,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09 WrapperNode [2020-10-27 18:18:09,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 18:18:09,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 18:18:09,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 18:18:09,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 18:18:09,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (1/1) ... [2020-10-27 18:18:09,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (1/1) ... [2020-10-27 18:18:09,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (1/1) ... [2020-10-27 18:18:09,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (1/1) ... [2020-10-27 18:18:09,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (1/1) ... [2020-10-27 18:18:09,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (1/1) ... [2020-10-27 18:18:09,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (1/1) ... [2020-10-27 18:18:09,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 18:18:09,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 18:18:09,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 18:18:09,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 18:18:09,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (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 [2020-10-27 18:18:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 18:18:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 18:18:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 18:18:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 18:18:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 18:18:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 18:18:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 18:18:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 18:18:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 18:18:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 18:18:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 18:18:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 18:18:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 18:18:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 18:18:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 18:18:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 18:18:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 18:18:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 18:18:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 18:18:10,952 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 18:18:10,952 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 18:18:10,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:18:10 BoogieIcfgContainer [2020-10-27 18:18:10,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 18:18:10,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 18:18:10,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 18:18:10,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 18:18:10,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:18:08" (1/3) ... [2020-10-27 18:18:10,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdac363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:18:10, skipping insertion in model container [2020-10-27 18:18:10,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:09" (2/3) ... [2020-10-27 18:18:10,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdac363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:18:10, skipping insertion in model container [2020-10-27 18:18:10,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:18:10" (3/3) ... [2020-10-27 18:18:10,964 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label53.c [2020-10-27 18:18:10,976 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 18:18:10,982 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 18:18:10,997 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 18:18:11,029 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 18:18:11,030 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 18:18:11,030 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 18:18:11,030 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 18:18:11,030 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 18:18:11,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 18:18:11,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 18:18:11,031 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 18:18:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-27 18:18:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-27 18:18:11,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:11,066 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] [2020-10-27 18:18:11,066 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:11,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:11,073 INFO L82 PathProgramCache]: Analyzing trace with hash -572014888, now seen corresponding path program 1 times [2020-10-27 18:18:11,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:11,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306849387] [2020-10-27 18:18:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:11,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:11,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:11,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-27 18:18:11,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-10-27 18:18:11,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:18:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:18:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 18:18:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:18:11,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:12,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:12,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:12,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:12,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:18:12,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:12,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:18:12,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:12,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:12,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306849387] [2020-10-27 18:18:12,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:18:12,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 18:18:12,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726183263] [2020-10-27 18:18:12,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 18:18:12,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:12,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 18:18:12,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 18:18:12,070 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-27 18:18:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:14,393 INFO L93 Difference]: Finished difference Result 703 states and 1247 transitions. [2020-10-27 18:18:14,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:18:14,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-27 18:18:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:14,413 INFO L225 Difference]: With dead ends: 703 [2020-10-27 18:18:14,414 INFO L226 Difference]: Without dead ends: 381 [2020-10-27 18:18:14,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:18:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-27 18:18:14,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2020-10-27 18:18:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-27 18:18:14,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 605 transitions. [2020-10-27 18:18:14,513 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 605 transitions. Word has length 56 [2020-10-27 18:18:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:14,514 INFO L481 AbstractCegarLoop]: Abstraction has 375 states and 605 transitions. [2020-10-27 18:18:14,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 18:18:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 605 transitions. [2020-10-27 18:18:14,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 18:18:14,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:14,521 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:14,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 18:18:14,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:14,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:14,523 INFO L82 PathProgramCache]: Analyzing trace with hash -24200508, now seen corresponding path program 1 times [2020-10-27 18:18:14,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:14,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468902065] [2020-10-27 18:18:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:15,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:15,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:15,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 18:18:15,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:18:15,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1217 [2020-10-27 18:18:15,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-27 18:18:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 18:18:15,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:15,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:15,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:15,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:15,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:16,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:18:16,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:18:16,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:16,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:16,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:16,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 18:18:16,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:16,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 18:18:16,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:16,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:16,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:16,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 18:18:16,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:16,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468902065] [2020-10-27 18:18:16,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:16,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:18:16,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313194052] [2020-10-27 18:18:16,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:18:16,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:16,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:18:16,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:18:16,205 INFO L87 Difference]: Start difference. First operand 375 states and 605 transitions. Second operand 5 states. [2020-10-27 18:18:18,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:18,556 INFO L93 Difference]: Finished difference Result 934 states and 1520 transitions. [2020-10-27 18:18:18,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:18:18,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-27 18:18:18,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:18,565 INFO L225 Difference]: With dead ends: 934 [2020-10-27 18:18:18,565 INFO L226 Difference]: Without dead ends: 565 [2020-10-27 18:18:18,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:18,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-27 18:18:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 561. [2020-10-27 18:18:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-27 18:18:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 802 transitions. [2020-10-27 18:18:18,621 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 802 transitions. Word has length 125 [2020-10-27 18:18:18,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:18,622 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 802 transitions. [2020-10-27 18:18:18,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:18:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 802 transitions. [2020-10-27 18:18:18,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-27 18:18:18,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:18,626 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:18,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 18:18:18,626 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:18,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:18,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1151425736, now seen corresponding path program 1 times [2020-10-27 18:18:18,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:18,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986585237] [2020-10-27 18:18:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:18,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:18,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:19,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:19,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:19,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 18:18:19,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:18:19,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1296 [2020-10-27 18:18:19,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:19,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:18:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 18:18:19,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:20,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:20,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:20,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:20,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:20,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 18:18:20,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:20,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:20,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:20,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-27 18:18:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 18:18:20,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 18:18:20,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:20,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986585237] [2020-10-27 18:18:20,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:20,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:18:20,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657717915] [2020-10-27 18:18:20,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:18:20,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:20,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:18:20,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:18:20,240 INFO L87 Difference]: Start difference. First operand 561 states and 802 transitions. Second operand 5 states. [2020-10-27 18:18:22,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:22,597 INFO L93 Difference]: Finished difference Result 1672 states and 2426 transitions. [2020-10-27 18:18:22,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:18:22,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-10-27 18:18:22,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:22,613 INFO L225 Difference]: With dead ends: 1672 [2020-10-27 18:18:22,615 INFO L226 Difference]: Without dead ends: 1117 [2020-10-27 18:18:22,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:22,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2020-10-27 18:18:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 747. [2020-10-27 18:18:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-10-27 18:18:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1044 transitions. [2020-10-27 18:18:22,692 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1044 transitions. Word has length 130 [2020-10-27 18:18:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:22,694 INFO L481 AbstractCegarLoop]: Abstraction has 747 states and 1044 transitions. [2020-10-27 18:18:22,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:18:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1044 transitions. [2020-10-27 18:18:22,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-27 18:18:22,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:22,709 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:22,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 18:18:22,710 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:22,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:22,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1211658924, now seen corresponding path program 1 times [2020-10-27 18:18:22,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:22,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243565478] [2020-10-27 18:18:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:22,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:22,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:23,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:23,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:24,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:24,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 18:18:24,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:18:24,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1308 [2020-10-27 18:18:24,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-27 18:18:24,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 18:18:24,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:24,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:24,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:24,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:24,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:24,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 18:18:24,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:24,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:24,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:24,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 18:18:24,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 18:18:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 18:18:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:24,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243565478] [2020-10-27 18:18:24,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:24,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:18:24,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918941772] [2020-10-27 18:18:24,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:18:24,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:24,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:18:24,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:24,376 INFO L87 Difference]: Start difference. First operand 747 states and 1044 transitions. Second operand 6 states. [2020-10-27 18:18:27,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:27,569 INFO L93 Difference]: Finished difference Result 2042 states and 2885 transitions. [2020-10-27 18:18:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:18:27,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-10-27 18:18:27,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:27,580 INFO L225 Difference]: With dead ends: 2042 [2020-10-27 18:18:27,581 INFO L226 Difference]: Without dead ends: 1301 [2020-10-27 18:18:27,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:18:27,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2020-10-27 18:18:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 749. [2020-10-27 18:18:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-10-27 18:18:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1047 transitions. [2020-10-27 18:18:27,630 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1047 transitions. Word has length 136 [2020-10-27 18:18:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:27,631 INFO L481 AbstractCegarLoop]: Abstraction has 749 states and 1047 transitions. [2020-10-27 18:18:27,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:18:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1047 transitions. [2020-10-27 18:18:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 18:18:27,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:27,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:27,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 18:18:27,636 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:27,636 INFO L82 PathProgramCache]: Analyzing trace with hash -314068448, now seen corresponding path program 1 times [2020-10-27 18:18:27,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:27,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493930568] [2020-10-27 18:18:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:27,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:28,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:28,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 18:18:28,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-27 18:18:28,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:18:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:18:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-27 18:18:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:28,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:28,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:28,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:28,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:18:28,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:28,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:18:28,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:28,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:28,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:28,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:18:28,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:28,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-27 18:18:28,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:28,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:28,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:18:28,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 18:18:28,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:28,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493930568] [2020-10-27 18:18:28,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:18:28,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 18:18:28,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283940689] [2020-10-27 18:18:28,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:18:28,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:28,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:18:28,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:18:28,426 INFO L87 Difference]: Start difference. First operand 749 states and 1047 transitions. Second operand 7 states. [2020-10-27 18:18:30,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:30,851 INFO L93 Difference]: Finished difference Result 1882 states and 2703 transitions. [2020-10-27 18:18:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:18:30,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-10-27 18:18:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:30,860 INFO L225 Difference]: With dead ends: 1882 [2020-10-27 18:18:30,860 INFO L226 Difference]: Without dead ends: 1139 [2020-10-27 18:18:30,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:18:30,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2020-10-27 18:18:30,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1123. [2020-10-27 18:18:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-10-27 18:18:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1518 transitions. [2020-10-27 18:18:30,920 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1518 transitions. Word has length 142 [2020-10-27 18:18:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:30,921 INFO L481 AbstractCegarLoop]: Abstraction has 1123 states and 1518 transitions. [2020-10-27 18:18:30,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:18:30,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1518 transitions. [2020-10-27 18:18:30,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-27 18:18:30,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:30,929 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:30,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 18:18:30,930 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:30,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:30,931 INFO L82 PathProgramCache]: Analyzing trace with hash 725522224, now seen corresponding path program 1 times [2020-10-27 18:18:30,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:30,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121997860] [2020-10-27 18:18:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:31,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:31,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:33,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:33,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-27 18:18:33,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:18:33,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2030 [2020-10-27 18:18:33,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 18:18:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:18:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-27 18:18:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:33,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:33,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:33,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:33,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:33,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:18:33,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:18:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:33,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:33,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:34,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:34,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:18:34,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:18:34,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-10-27 18:18:34,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:18:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:18:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:34,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-27 18:18:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:34,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:34,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:34,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:18:34,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:34,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 18:18:34,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:18:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 18:18:34,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121997860] [2020-10-27 18:18:34,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:34,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:18:34,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870246756] [2020-10-27 18:18:34,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:18:34,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:34,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:18:34,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:18:34,588 INFO L87 Difference]: Start difference. First operand 1123 states and 1518 transitions. Second operand 8 states. [2020-10-27 18:18:34,756 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-27 18:18:34,923 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 18:18:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:37,602 INFO L93 Difference]: Finished difference Result 2499 states and 3544 transitions. [2020-10-27 18:18:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:18:37,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 321 [2020-10-27 18:18:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:37,613 INFO L225 Difference]: With dead ends: 2499 [2020-10-27 18:18:37,613 INFO L226 Difference]: Without dead ends: 1382 [2020-10-27 18:18:37,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:18:37,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2020-10-27 18:18:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1319. [2020-10-27 18:18:37,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-10-27 18:18:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1736 transitions. [2020-10-27 18:18:37,678 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1736 transitions. Word has length 321 [2020-10-27 18:18:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:37,678 INFO L481 AbstractCegarLoop]: Abstraction has 1319 states and 1736 transitions. [2020-10-27 18:18:37,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:18:37,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1736 transitions. [2020-10-27 18:18:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-27 18:18:37,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:37,686 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:37,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 18:18:37,686 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:37,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:37,687 INFO L82 PathProgramCache]: Analyzing trace with hash 641463936, now seen corresponding path program 1 times [2020-10-27 18:18:37,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:37,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465434969] [2020-10-27 18:18:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:37,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:37,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:37,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:39,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:42,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:42,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-27 18:18:42,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:18:42,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-27 18:18:42,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:42,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:42,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-10-27 18:18:42,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 18:18:42,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:42,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:42,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:42,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:18:42,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:42,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:42,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:42,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:18:42,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:42,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:18:42,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:42,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:42,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:18:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:43,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:43,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:43,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 18:18:43,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:43,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 18:18:43,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 18:18:43,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:43,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 18:18:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:43,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:43,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:43,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:18:43,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:43,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-27 18:18:43,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:18:43,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 18:18:43,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 313 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-27 18:18:43,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465434969] [2020-10-27 18:18:43,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:43,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:18:43,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114991794] [2020-10-27 18:18:43,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:18:43,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:43,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:18:43,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:18:43,456 INFO L87 Difference]: Start difference. First operand 1319 states and 1736 transitions. Second operand 7 states. [2020-10-27 18:18:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:46,122 INFO L93 Difference]: Finished difference Result 3216 states and 4462 transitions. [2020-10-27 18:18:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:18:46,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-10-27 18:18:46,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:46,136 INFO L225 Difference]: With dead ends: 3216 [2020-10-27 18:18:46,136 INFO L226 Difference]: Without dead ends: 2085 [2020-10-27 18:18:46,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:18:46,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-10-27 18:18:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1889. [2020-10-27 18:18:46,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1889 states. [2020-10-27 18:18:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2577 transitions. [2020-10-27 18:18:46,215 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2577 transitions. Word has length 338 [2020-10-27 18:18:46,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:46,216 INFO L481 AbstractCegarLoop]: Abstraction has 1889 states and 2577 transitions. [2020-10-27 18:18:46,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:18:46,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2577 transitions. [2020-10-27 18:18:46,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-27 18:18:46,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:46,224 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:46,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 18:18:46,225 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:46,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:46,226 INFO L82 PathProgramCache]: Analyzing trace with hash 764010356, now seen corresponding path program 1 times [2020-10-27 18:18:46,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:46,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817161659] [2020-10-27 18:18:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:46,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:46,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:46,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:47,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:50,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:51,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:51,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-27 18:18:51,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:18:51,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-27 18:18:51,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 312 [2020-10-27 18:18:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 18:18:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:51,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:51,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:51,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:51,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:51,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:18:51,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:51,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:51,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:51,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:18:51,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:18:51,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:51,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:51,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:51,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:51,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:18:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:51,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:51,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:51,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 18:18:51,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 18:18:51,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:51,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-27 18:18:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:51,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:51,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 18:18:51,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 18:18:51,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 18:18:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-27 18:18:51,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817161659] [2020-10-27 18:18:51,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:51,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:18:51,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082367158] [2020-10-27 18:18:51,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:18:51,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:51,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:18:51,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:18:51,884 INFO L87 Difference]: Start difference. First operand 1889 states and 2577 transitions. Second operand 5 states. [2020-10-27 18:18:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:54,176 INFO L93 Difference]: Finished difference Result 4330 states and 6108 transitions. [2020-10-27 18:18:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:18:54,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 354 [2020-10-27 18:18:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:54,196 INFO L225 Difference]: With dead ends: 4330 [2020-10-27 18:18:54,196 INFO L226 Difference]: Without dead ends: 2629 [2020-10-27 18:18:54,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2020-10-27 18:18:54,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2261. [2020-10-27 18:18:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-10-27 18:18:54,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3098 transitions. [2020-10-27 18:18:54,295 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3098 transitions. Word has length 354 [2020-10-27 18:18:54,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:54,296 INFO L481 AbstractCegarLoop]: Abstraction has 2261 states and 3098 transitions. [2020-10-27 18:18:54,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:18:54,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3098 transitions. [2020-10-27 18:18:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-27 18:18:54,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:54,308 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:54,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 18:18:54,308 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:54,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1195057956, now seen corresponding path program 1 times [2020-10-27 18:18:54,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:54,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590728153] [2020-10-27 18:18:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:54,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:54,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:54,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:57,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:59,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:59,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-27 18:18:59,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:18:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 18:18:59,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 18:18:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 226 [2020-10-27 18:18:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 18:18:59,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:59,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:59,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:59,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:59,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:59,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:59,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:18:59,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:59,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:59,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:59,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:59,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:59,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:59,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:18:59,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:59,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 18:18:59,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:59,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:59,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:18:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:59,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:59,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:59,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:18:59,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 18:18:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 18:18:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:59,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 18:18:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:59,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:59,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:59,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:18:59,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:59,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-27 18:18:59,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:18:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:18:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 18:18:59,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 296 proven. 19 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-27 18:19:00,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590728153] [2020-10-27 18:19:00,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:00,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:19:00,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279216003] [2020-10-27 18:19:00,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:19:00,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:00,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:19:00,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:19:00,299 INFO L87 Difference]: Start difference. First operand 2261 states and 3098 transitions. Second operand 8 states. [2020-10-27 18:19:04,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:04,237 INFO L93 Difference]: Finished difference Result 6029 states and 8605 transitions. [2020-10-27 18:19:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 18:19:04,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 356 [2020-10-27 18:19:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:04,259 INFO L225 Difference]: With dead ends: 6029 [2020-10-27 18:19:04,259 INFO L226 Difference]: Without dead ends: 3939 [2020-10-27 18:19:04,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:19:04,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2020-10-27 18:19:04,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3197. [2020-10-27 18:19:04,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3197 states. [2020-10-27 18:19:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4267 transitions. [2020-10-27 18:19:04,389 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4267 transitions. Word has length 356 [2020-10-27 18:19:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:04,390 INFO L481 AbstractCegarLoop]: Abstraction has 3197 states and 4267 transitions. [2020-10-27 18:19:04,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:19:04,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4267 transitions. [2020-10-27 18:19:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-27 18:19:04,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:04,403 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:04,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 18:19:04,404 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:04,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:04,404 INFO L82 PathProgramCache]: Analyzing trace with hash 793599516, now seen corresponding path program 1 times [2020-10-27 18:19:04,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:04,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103922403] [2020-10-27 18:19:04,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:04,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:04,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:09,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:09,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-27 18:19:09,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:19:09,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 18:19:09,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 18:19:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-10-27 18:19:09,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 18:19:09,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:09,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:09,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:09,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:09,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:09,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:09,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 18:19:09,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:09,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:09,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:09,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:09,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:09,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:19:09,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:09,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 18:19:09,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:09,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:09,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:19:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:09,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:09,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:09,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 18:19:09,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:09,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 18:19:09,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 18:19:09,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:09,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 18:19:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:09,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:10,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:10,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 18:19:10,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:10,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-27 18:19:10,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:19:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 18:19:10,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 327 proven. 7 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-27 18:19:10,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103922403] [2020-10-27 18:19:10,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:10,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:19:10,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80884975] [2020-10-27 18:19:10,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:19:10,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:10,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:19:10,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:19:10,328 INFO L87 Difference]: Start difference. First operand 3197 states and 4267 transitions. Second operand 8 states. [2020-10-27 18:19:13,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:13,761 INFO L93 Difference]: Finished difference Result 8447 states and 11607 transitions. [2020-10-27 18:19:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 18:19:13,762 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 357 [2020-10-27 18:19:13,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:13,790 INFO L225 Difference]: With dead ends: 8447 [2020-10-27 18:19:13,790 INFO L226 Difference]: Without dead ends: 5429 [2020-10-27 18:19:13,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:19:13,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2020-10-27 18:19:13,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 5233. [2020-10-27 18:19:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5233 states. [2020-10-27 18:19:13,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 7226 transitions. [2020-10-27 18:19:13,986 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 7226 transitions. Word has length 357 [2020-10-27 18:19:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:13,987 INFO L481 AbstractCegarLoop]: Abstraction has 5233 states and 7226 transitions. [2020-10-27 18:19:13,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:19:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 7226 transitions. [2020-10-27 18:19:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-27 18:19:13,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:13,996 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:13,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 18:19:13,997 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:13,998 INFO L82 PathProgramCache]: Analyzing trace with hash 117397548, now seen corresponding path program 1 times [2020-10-27 18:19:13,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:13,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703919342] [2020-10-27 18:19:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:14,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:15,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:18,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:18,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:19,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:19,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-27 18:19:19,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 18:19:19,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 18:19:19,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-27 18:19:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 18:19:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:19,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:19,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:19,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:19,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:19,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:19:19,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:19,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:19,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:19,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:19:19,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:19:19,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:19,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:19,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:19:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:19,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:19,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:19,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 18:19:19,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:19,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:19:19,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:19:19,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-27 18:19:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:19,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:19,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:19,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 18:19:19,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 18:19:19,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-27 18:19:19,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-27 18:19:19,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703919342] [2020-10-27 18:19:19,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:19,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:19:19,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108146259] [2020-10-27 18:19:19,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:19:19,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:19,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:19:19,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:19:19,554 INFO L87 Difference]: Start difference. First operand 5233 states and 7226 transitions. Second operand 5 states. [2020-10-27 18:19:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:21,290 INFO L93 Difference]: Finished difference Result 10164 states and 14119 transitions. [2020-10-27 18:19:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:19:21,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 369 [2020-10-27 18:19:21,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:21,316 INFO L225 Difference]: With dead ends: 10164 [2020-10-27 18:19:21,316 INFO L226 Difference]: Without dead ends: 5043 [2020-10-27 18:19:21,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:19:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2020-10-27 18:19:21,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 5043. [2020-10-27 18:19:21,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2020-10-27 18:19:21,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 6850 transitions. [2020-10-27 18:19:21,530 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 6850 transitions. Word has length 369 [2020-10-27 18:19:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:21,530 INFO L481 AbstractCegarLoop]: Abstraction has 5043 states and 6850 transitions. [2020-10-27 18:19:21,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:19:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 6850 transitions. [2020-10-27 18:19:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-10-27 18:19:21,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:21,544 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:21,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 18:19:21,545 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash -753628412, now seen corresponding path program 1 times [2020-10-27 18:19:21,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:21,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143727454] [2020-10-27 18:19:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:21,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:21,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:21,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:22,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:22,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:23,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:24,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 426 [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 368 [2020-10-27 18:19:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 18:19:26,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:26,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:26,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:26,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:26,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:19:26,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:26,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:26,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:26,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:19:26,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 18:19:26,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:26,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:19:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:26,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:26,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 18:19:26,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:26,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:19:26,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:26,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:26,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:26,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-27 18:19:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:26,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:26,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-27 18:19:26,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-27 18:19:26,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-27 18:19:26,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-27 18:19:27,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143727454] [2020-10-27 18:19:27,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:27,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:19:27,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939656615] [2020-10-27 18:19:27,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:19:27,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:27,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:19:27,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:19:27,175 INFO L87 Difference]: Start difference. First operand 5043 states and 6850 transitions. Second operand 5 states. [2020-10-27 18:19:28,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:28,611 INFO L93 Difference]: Finished difference Result 9920 states and 13554 transitions. [2020-10-27 18:19:28,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:19:28,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 410 [2020-10-27 18:19:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:28,654 INFO L225 Difference]: With dead ends: 9920 [2020-10-27 18:19:28,655 INFO L226 Difference]: Without dead ends: 5041 [2020-10-27 18:19:28,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:19:28,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5041 states. [2020-10-27 18:19:28,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5041 to 5041. [2020-10-27 18:19:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5041 states. [2020-10-27 18:19:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 6835 transitions. [2020-10-27 18:19:28,821 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 6835 transitions. Word has length 410 [2020-10-27 18:19:28,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:28,822 INFO L481 AbstractCegarLoop]: Abstraction has 5041 states and 6835 transitions. [2020-10-27 18:19:28,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:19:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 6835 transitions. [2020-10-27 18:19:28,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-27 18:19:28,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:28,833 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:28,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 18:19:28,834 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:28,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:28,835 INFO L82 PathProgramCache]: Analyzing trace with hash -417595112, now seen corresponding path program 1 times [2020-10-27 18:19:28,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:28,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104585858] [2020-10-27 18:19:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:28,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:29,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:31,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:31,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 447 [2020-10-27 18:19:31,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:19:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2947 [2020-10-27 18:19:31,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 18:19:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-27 18:19:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-27 18:19:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:32,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:32,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:32,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:32,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:32,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:19:32,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:32,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:32,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:32,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:32,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:32,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:32,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:19:32,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:32,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 18:19:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:32,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:32,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:32,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:19:32,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:19:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-27 18:19:32,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 18:19:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:19:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:33,086 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-10-27 18:19:33,331 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-10-27 18:19:33,576 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2020-10-27 18:19:33,872 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2020-10-27 18:19:34,110 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-10-27 18:19:34,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-10-27 18:19:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:34,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:34,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:34,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:19:34,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:34,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 18:19:34,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:34,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:34,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:19:34,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:34,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 255 proven. 85 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-27 18:19:35,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104585858] [2020-10-27 18:19:35,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:35,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 18:19:35,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001807918] [2020-10-27 18:19:35,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 18:19:35,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:35,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 18:19:35,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-27 18:19:35,406 INFO L87 Difference]: Start difference. First operand 5041 states and 6835 transitions. Second operand 13 states. [2020-10-27 18:19:36,360 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2020-10-27 18:19:36,688 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2020-10-27 18:19:37,103 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-10-27 18:19:37,393 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-10-27 18:19:38,319 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-10-27 18:19:39,024 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2020-10-27 18:19:39,760 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2020-10-27 18:19:40,111 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-27 18:19:40,601 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2020-10-27 18:19:40,974 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2020-10-27 18:19:41,546 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2020-10-27 18:19:42,197 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2020-10-27 18:19:42,655 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-27 18:19:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:43,408 INFO L93 Difference]: Finished difference Result 10082 states and 13723 transitions. [2020-10-27 18:19:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 18:19:43,409 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 431 [2020-10-27 18:19:43,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:43,431 INFO L225 Difference]: With dead ends: 10082 [2020-10-27 18:19:43,431 INFO L226 Difference]: Without dead ends: 5206 [2020-10-27 18:19:43,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-27 18:19:43,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2020-10-27 18:19:43,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 5202. [2020-10-27 18:19:43,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5202 states. [2020-10-27 18:19:43,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 7009 transitions. [2020-10-27 18:19:43,586 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 7009 transitions. Word has length 431 [2020-10-27 18:19:43,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:43,587 INFO L481 AbstractCegarLoop]: Abstraction has 5202 states and 7009 transitions. [2020-10-27 18:19:43,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 18:19:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 7009 transitions. [2020-10-27 18:19:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-10-27 18:19:43,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:43,597 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:43,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 18:19:43,598 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:43,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:43,599 INFO L82 PathProgramCache]: Analyzing trace with hash 601904572, now seen corresponding path program 1 times [2020-10-27 18:19:43,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:43,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843958231] [2020-10-27 18:19:43,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:43,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:43,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:43,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:44,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:44,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:44,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:45,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:48,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:48,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 458 [2020-10-27 18:19:48,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 18:19:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 18:19:48,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 312 [2020-10-27 18:19:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 18:19:48,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:48,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:48,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:48,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:48,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:48,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:48,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:19:48,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:48,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:48,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:48,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:48,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:48,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:19:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:48,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:48,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:48,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 18:19:48,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:19:48,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:48,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:48,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-27 18:19:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:48,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 18:19:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2020-10-27 18:19:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:49,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:49,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:19:49,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 18:19:49,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 18:19:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 449 proven. 2 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-27 18:19:49,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843958231] [2020-10-27 18:19:49,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:49,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:19:49,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379306934] [2020-10-27 18:19:49,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:19:49,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:49,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:19:49,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:19:49,181 INFO L87 Difference]: Start difference. First operand 5202 states and 7009 transitions. Second operand 7 states. [2020-10-27 18:19:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:52,117 INFO L93 Difference]: Finished difference Result 10804 states and 14649 transitions. [2020-10-27 18:19:52,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:19:52,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 440 [2020-10-27 18:19:52,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:52,135 INFO L225 Difference]: With dead ends: 10804 [2020-10-27 18:19:52,135 INFO L226 Difference]: Without dead ends: 4312 [2020-10-27 18:19:52,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:19:52,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2020-10-27 18:19:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 3908. [2020-10-27 18:19:52,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3908 states. [2020-10-27 18:19:52,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 4926 transitions. [2020-10-27 18:19:52,248 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 4926 transitions. Word has length 440 [2020-10-27 18:19:52,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:52,249 INFO L481 AbstractCegarLoop]: Abstraction has 3908 states and 4926 transitions. [2020-10-27 18:19:52,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:19:52,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 4926 transitions. [2020-10-27 18:19:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2020-10-27 18:19:52,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:52,257 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:52,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 18:19:52,258 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:52,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:52,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1138089824, now seen corresponding path program 1 times [2020-10-27 18:19:52,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:52,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923284671] [2020-10-27 18:19:52,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:52,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:52,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:53,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:54,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 18:19:57,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:57,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:57,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:57,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:57,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:19:57,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:57,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:57,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:57,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:57,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:57,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:19:57,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:57,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 18:19:57,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:57,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:57,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:57,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:57,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:57,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:19:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:57,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 18:19:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:57,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:57,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:57,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 18:19:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:19:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:57,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2020-10-27 18:19:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:57,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:57,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:57,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 18:19:57,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:57,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 18:19:57,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:57,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:57,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:57,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 18:19:57,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 197 proven. 4 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2020-10-27 18:19:57,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923284671] [2020-10-27 18:19:57,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:57,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:19:57,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491453827] [2020-10-27 18:19:57,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:19:57,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:57,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:19:57,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:19:57,877 INFO L87 Difference]: Start difference. First operand 3908 states and 4926 transitions. Second operand 6 states. [2020-10-27 18:20:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:20:00,922 INFO L93 Difference]: Finished difference Result 9286 states and 11759 transitions. [2020-10-27 18:20:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:20:00,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 454 [2020-10-27 18:20:00,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:20:00,943 INFO L225 Difference]: With dead ends: 9286 [2020-10-27 18:20:00,943 INFO L226 Difference]: Without dead ends: 5382 [2020-10-27 18:20:00,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:20:00,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5382 states. [2020-10-27 18:20:01,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5382 to 3902. [2020-10-27 18:20:01,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3902 states. [2020-10-27 18:20:01,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3902 states to 3902 states and 4831 transitions. [2020-10-27 18:20:01,075 INFO L78 Accepts]: Start accepts. Automaton has 3902 states and 4831 transitions. Word has length 454 [2020-10-27 18:20:01,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:20:01,076 INFO L481 AbstractCegarLoop]: Abstraction has 3902 states and 4831 transitions. [2020-10-27 18:20:01,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:20:01,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3902 states and 4831 transitions. [2020-10-27 18:20:01,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-10-27 18:20:01,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:20:01,087 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:20:01,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 18:20:01,088 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:20:01,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:20:01,088 INFO L82 PathProgramCache]: Analyzing trace with hash -697583920, now seen corresponding path program 1 times [2020-10-27 18:20:01,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:20:01,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484203750] [2020-10-27 18:20:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:20:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:01,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:01,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:01,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:01,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:06,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 535 [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-27 18:20:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:06,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:20:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:06,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:06,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:06,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:06,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:20:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:06,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:06,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:06,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:20:06,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 18:20:06,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:06,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:06,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:20:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:06,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:06,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 18:20:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-27 18:20:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:06,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:06,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:07,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:07,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:20:07,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:20:07,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-27 18:20:07,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 18:20:07,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:20:07,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:20:07,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:07,676 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 23 [2020-10-27 18:20:07,921 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-27 18:20:08,144 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-10-27 18:20:08,415 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-10-27 18:20:08,692 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-27 18:20:08,993 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-10-27 18:20:09,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2020-10-27 18:20:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:09,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:09,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:09,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:20:09,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:09,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 18:20:09,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:09,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:09,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:20:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:09,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 395 proven. 85 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-27 18:20:10,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484203750] [2020-10-27 18:20:10,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:20:10,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 18:20:10,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214357472] [2020-10-27 18:20:10,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 18:20:10,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:20:10,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 18:20:10,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-27 18:20:10,380 INFO L87 Difference]: Start difference. First operand 3902 states and 4831 transitions. Second operand 13 states. [2020-10-27 18:20:11,348 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2020-10-27 18:20:11,808 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2020-10-27 18:20:12,311 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-27 18:20:12,650 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-10-27 18:20:13,092 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2020-10-27 18:20:13,522 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 103 [2020-10-27 18:20:13,984 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 114 [2020-10-27 18:20:14,416 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2020-10-27 18:20:15,757 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2020-10-27 18:20:16,332 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2020-10-27 18:20:16,718 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2020-10-27 18:20:17,229 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2020-10-27 18:20:17,676 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2020-10-27 18:20:18,193 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 99 [2020-10-27 18:20:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:20:19,060 INFO L93 Difference]: Finished difference Result 7824 states and 9719 transitions. [2020-10-27 18:20:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 18:20:19,061 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 517 [2020-10-27 18:20:19,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:20:19,087 INFO L225 Difference]: With dead ends: 7824 [2020-10-27 18:20:19,088 INFO L226 Difference]: Without dead ends: 4077 [2020-10-27 18:20:19,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-27 18:20:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2020-10-27 18:20:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 4053. [2020-10-27 18:20:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4053 states. [2020-10-27 18:20:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4053 states to 4053 states and 4987 transitions. [2020-10-27 18:20:19,198 INFO L78 Accepts]: Start accepts. Automaton has 4053 states and 4987 transitions. Word has length 517 [2020-10-27 18:20:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:20:19,199 INFO L481 AbstractCegarLoop]: Abstraction has 4053 states and 4987 transitions. [2020-10-27 18:20:19,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 18:20:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4053 states and 4987 transitions. [2020-10-27 18:20:19,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-10-27 18:20:19,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:20:19,212 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:20:19,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 18:20:19,212 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:20:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:20:19,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1801066476, now seen corresponding path program 1 times [2020-10-27 18:20:19,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:20:19,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650675462] [2020-10-27 18:20:19,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:20:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:19,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:19,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:19,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:24,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:24,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 634 [2020-10-27 18:20:24,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:20:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 18:20:24,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:20:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-27 18:20:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-27 18:20:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:24,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:20:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:24,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:24,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:24,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:20:24,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:24,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:20:24,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:24,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:24,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:24,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:20:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:24,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:24,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:24,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:20:24,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:20:24,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:24,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:24,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:20:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:24,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:24,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:24,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:20:24,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 18:20:24,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:24,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 18:20:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:24,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:24,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:24,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 18:20:24,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:24,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 18:20:24,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:20:24,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:24,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 18:20:24,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:24,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2020-10-27 18:20:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:24,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:24,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:24,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:20:24,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:24,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-27 18:20:24,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:20:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:20:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:20:24,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:24,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-27 18:20:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:24,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:24,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:24,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:20:24,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:24,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 18:20:24,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:20:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:24,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 546 proven. 85 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2020-10-27 18:20:25,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650675462] [2020-10-27 18:20:25,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:20:25,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:20:25,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116133722] [2020-10-27 18:20:25,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:20:25,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:20:25,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:20:25,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:20:25,121 INFO L87 Difference]: Start difference. First operand 4053 states and 4987 transitions. Second operand 7 states. [2020-10-27 18:20:28,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:20:28,890 INFO L93 Difference]: Finished difference Result 8294 states and 10230 transitions. [2020-10-27 18:20:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:20:28,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 614 [2020-10-27 18:20:28,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:20:28,905 INFO L225 Difference]: With dead ends: 8294 [2020-10-27 18:20:28,905 INFO L226 Difference]: Without dead ends: 4429 [2020-10-27 18:20:28,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:20:28,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4429 states. [2020-10-27 18:20:29,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4429 to 4241. [2020-10-27 18:20:29,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4241 states. [2020-10-27 18:20:29,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4241 states to 4241 states and 4930 transitions. [2020-10-27 18:20:29,012 INFO L78 Accepts]: Start accepts. Automaton has 4241 states and 4930 transitions. Word has length 614 [2020-10-27 18:20:29,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:20:29,013 INFO L481 AbstractCegarLoop]: Abstraction has 4241 states and 4930 transitions. [2020-10-27 18:20:29,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:20:29,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4241 states and 4930 transitions. [2020-10-27 18:20:29,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2020-10-27 18:20:29,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:20:29,029 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:20:29,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 18:20:29,029 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:20:29,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:20:29,029 INFO L82 PathProgramCache]: Analyzing trace with hash 676164520, now seen corresponding path program 1 times [2020-10-27 18:20:29,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:20:29,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829479884] [2020-10-27 18:20:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:20:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:29,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:29,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:30,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:32,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:32,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 677 [2020-10-27 18:20:32,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:20:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3644 [2020-10-27 18:20:32,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 18:20:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-27 18:20:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-27 18:20:32,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:33,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:20:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:33,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:33,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:33,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:20:33,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:33,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:20:33,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:33,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:33,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:20:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:33,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:33,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:33,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:20:33,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:33,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 18:20:33,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:33,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:33,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:33,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 18:20:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:33,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:33,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:33,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 18:20:33,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:33,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 18:20:33,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:33,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:33,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-27 18:20:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:33,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:33,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:33,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 18:20:33,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 18:20:33,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:20:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-27 18:20:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:33,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-27 18:20:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:33,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:33,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:33,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:20:33,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:20:33,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-27 18:20:33,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 18:20:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:20:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:20:33,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:34,881 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2020-10-27 18:20:35,229 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2020-10-27 18:20:35,592 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2020-10-27 18:20:35,980 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2020-10-27 18:20:36,400 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2020-10-27 18:20:36,850 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2020-10-27 18:20:37,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-27 18:20:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:37,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:37,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 589 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-27 18:20:39,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829479884] [2020-10-27 18:20:39,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:20:39,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 18:20:39,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274406503] [2020-10-27 18:20:39,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 18:20:39,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:20:39,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 18:20:39,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 18:20:39,760 INFO L87 Difference]: Start difference. First operand 4241 states and 4930 transitions. Second operand 13 states. [2020-10-27 18:20:40,064 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2020-10-27 18:20:41,187 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 93 [2020-10-27 18:20:41,658 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 102 [2020-10-27 18:20:42,736 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 97 [2020-10-27 18:20:43,312 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2020-10-27 18:20:43,774 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 104 [2020-10-27 18:20:44,290 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 108 [2020-10-27 18:20:44,888 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 127 [2020-10-27 18:20:45,731 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2020-10-27 18:20:46,195 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 63 [2020-10-27 18:20:46,681 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 82 [2020-10-27 18:20:48,244 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2020-10-27 18:20:49,468 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 90 [2020-10-27 18:20:50,111 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 93 [2020-10-27 18:20:50,591 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 96 [2020-10-27 18:20:51,165 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 100 [2020-10-27 18:20:51,728 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 106 [2020-10-27 18:20:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:20:52,284 INFO L93 Difference]: Finished difference Result 8498 states and 9927 transitions. [2020-10-27 18:20:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 18:20:52,285 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 657 [2020-10-27 18:20:52,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:20:52,296 INFO L225 Difference]: With dead ends: 8498 [2020-10-27 18:20:52,297 INFO L226 Difference]: Without dead ends: 4429 [2020-10-27 18:20:52,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-27 18:20:52,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4429 states. [2020-10-27 18:20:52,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4429 to 4411. [2020-10-27 18:20:52,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4411 states. [2020-10-27 18:20:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4411 states to 4411 states and 5111 transitions. [2020-10-27 18:20:52,392 INFO L78 Accepts]: Start accepts. Automaton has 4411 states and 5111 transitions. Word has length 657 [2020-10-27 18:20:52,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:20:52,393 INFO L481 AbstractCegarLoop]: Abstraction has 4411 states and 5111 transitions. [2020-10-27 18:20:52,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 18:20:52,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4411 states and 5111 transitions. [2020-10-27 18:20:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-10-27 18:20:52,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:20:52,406 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:20:52,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 18:20:52,407 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:20:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:20:52,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1867332608, now seen corresponding path program 1 times [2020-10-27 18:20:52,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:20:52,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693263284] [2020-10-27 18:20:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:20:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:52,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:52,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:52,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:53,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:53,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:57,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:57,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 688 [2020-10-27 18:20:57,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:20:57,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-27 18:20:57,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:20:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 361 [2020-10-27 18:20:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-27 18:20:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:57,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:20:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:57,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:57,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:57,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:20:57,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:20:57,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:57,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:20:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:57,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:57,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:20:57,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 18:20:57,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:57,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:57,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:20:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:57,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:57,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:57,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:20:57,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 18:20:57,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:57,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 18:20:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:57,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:57,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-27 18:20:57,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:58,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-27 18:20:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:58,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:58,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:58,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:20:58,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:58,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-27 18:20:58,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:58,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:20:58,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:20:58,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:20:58,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:58,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2020-10-27 18:20:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:20:58,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:20:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:20:58,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:20:58,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:20:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 18:20:58,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:20:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:20:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:20:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:20:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:20:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 600 proven. 85 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2020-10-27 18:20:58,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693263284] [2020-10-27 18:20:58,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:20:58,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:20:58,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296223343] [2020-10-27 18:20:58,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:20:58,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:20:58,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:20:58,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:20:58,895 INFO L87 Difference]: Start difference. First operand 4411 states and 5111 transitions. Second operand 7 states. [2020-10-27 18:21:02,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:21:02,313 INFO L93 Difference]: Finished difference Result 9394 states and 10895 transitions. [2020-10-27 18:21:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:21:02,317 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 668 [2020-10-27 18:21:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:21:02,325 INFO L225 Difference]: With dead ends: 9394 [2020-10-27 18:21:02,325 INFO L226 Difference]: Without dead ends: 2501 [2020-10-27 18:21:02,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:21:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2020-10-27 18:21:02,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2129. [2020-10-27 18:21:02,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2129 states. [2020-10-27 18:21:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 2190 transitions. [2020-10-27 18:21:02,384 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 2190 transitions. Word has length 668 [2020-10-27 18:21:02,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:21:02,384 INFO L481 AbstractCegarLoop]: Abstraction has 2129 states and 2190 transitions. [2020-10-27 18:21:02,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:21:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 2190 transitions. [2020-10-27 18:21:02,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-10-27 18:21:02,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:21:02,394 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:21:02,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 18:21:02,394 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:21:02,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:21:02,395 INFO L82 PathProgramCache]: Analyzing trace with hash 484971296, now seen corresponding path program 1 times [2020-10-27 18:21:02,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:21:02,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134196763] [2020-10-27 18:21:02,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:21:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:02,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:02,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:02,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:04,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 737 [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 410 [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-27 18:21:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:07,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:21:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:07,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:07,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:07,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:21:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:07,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:07,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:07,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 18:21:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:07,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:07,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:07,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:07,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-27 18:21:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:07,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:07,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:07,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 18:21:07,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:07,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 18:21:07,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:07,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:21:07,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-27 18:21:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:07,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-27 18:21:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:07,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:08,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:08,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:21:08,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-27 18:21:08,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:21:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:21:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:21:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:08,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-27 18:21:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:08,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:08,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:08,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:21:08,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 18:21:08,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 18:21:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:21:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1308 backedges. 649 proven. 85 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-10-27 18:21:08,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134196763] [2020-10-27 18:21:08,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:21:08,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:21:08,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391418295] [2020-10-27 18:21:08,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:21:08,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:21:08,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:21:08,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:21:08,512 INFO L87 Difference]: Start difference. First operand 2129 states and 2190 transitions. Second operand 7 states. [2020-10-27 18:21:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:21:10,327 INFO L93 Difference]: Finished difference Result 4626 states and 4774 transitions. [2020-10-27 18:21:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 18:21:10,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 717 [2020-10-27 18:21:10,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:21:10,336 INFO L225 Difference]: With dead ends: 4626 [2020-10-27 18:21:10,336 INFO L226 Difference]: Without dead ends: 2685 [2020-10-27 18:21:10,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:21:10,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2020-10-27 18:21:10,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2313. [2020-10-27 18:21:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2020-10-27 18:21:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2380 transitions. [2020-10-27 18:21:10,387 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2380 transitions. Word has length 717 [2020-10-27 18:21:10,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:21:10,388 INFO L481 AbstractCegarLoop]: Abstraction has 2313 states and 2380 transitions. [2020-10-27 18:21:10,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:21:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2380 transitions. [2020-10-27 18:21:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2020-10-27 18:21:10,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:21:10,398 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:21:10,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 18:21:10,399 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:21:10,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:21:10,400 INFO L82 PathProgramCache]: Analyzing trace with hash -250539068, now seen corresponding path program 1 times [2020-10-27 18:21:10,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:21:10,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253726429] [2020-10-27 18:21:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:21:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:10,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:10,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:12,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:15,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:15,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 815 [2020-10-27 18:21:15,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:21:15,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 18:21:15,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 18:21:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 488 [2020-10-27 18:21:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-27 18:21:15,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:15,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:21:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:15,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:15,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:15,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:15,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:21:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:15,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:15,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:15,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 18:21:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:15,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:15,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 18:21:15,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 18:21:15,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:15,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:15,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-27 18:21:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:15,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 18:21:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 18:21:15,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:21:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:21:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:15,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-27 18:21:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:16,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:16,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 18:21:16,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:16,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 18:21:16,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:21:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:21:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 18:21:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:16,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-27 18:21:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:16,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:16,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:16,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:21:16,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-27 18:21:16,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:21:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:21:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-27 18:21:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-27 18:21:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:21:16,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:21:16,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:21:16,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 18:21:16,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:21:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 18:21:16,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:21:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:21:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:21:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 18:21:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:21:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1736 backedges. 1095 proven. 6 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2020-10-27 18:21:16,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253726429] [2020-10-27 18:21:16,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:21:16,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 18:21:16,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372348898] [2020-10-27 18:21:16,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 18:21:16,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:21:16,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 18:21:16,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 18:21:16,769 INFO L87 Difference]: Start difference. First operand 2313 states and 2380 transitions. Second operand 9 states. [2020-10-27 18:21:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:21:19,790 INFO L93 Difference]: Finished difference Result 4435 states and 4571 transitions. [2020-10-27 18:21:19,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:21:19,791 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 793 [2020-10-27 18:21:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:21:19,793 INFO L225 Difference]: With dead ends: 4435 [2020-10-27 18:21:19,793 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 18:21:19,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-27 18:21:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 18:21:19,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 18:21:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 18:21:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 18:21:19,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 793 [2020-10-27 18:21:19,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:21:19,802 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 18:21:19,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 18:21:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 18:21:19,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 18:21:19,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 18:21:19,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 18:21:21,061 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 321 DAG size of output: 262 [2020-10-27 18:21:22,892 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 275 [2020-10-27 18:21:25,034 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 259 DAG size of output: 67 [2020-10-27 18:21:25,171 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 28 [2020-10-27 18:21:28,484 WARN L193 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 340 DAG size of output: 95 [2020-10-27 18:21:30,388 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 272 DAG size of output: 67 [2020-10-27 18:21:31,829 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 207 DAG size of output: 73 [2020-10-27 18:21:31,835 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 18:21:31,836 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 18:21:31,836 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 18:21:31,836 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 18:21:31,836 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:21:31,837 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-27 18:21:31,837 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:21:31,837 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-27 18:21:31,837 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-27 18:21:31,837 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 18:21:31,837 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-27 18:21:31,837 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-27 18:21:31,837 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-27 18:21:31,838 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-27 18:21:31,839 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-27 18:21:31,840 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-27 18:21:31,841 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,842 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-27 18:21:31,843 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-27 18:21:31,844 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-27 18:21:31,845 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-27 18:21:31,845 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-27 18:21:31,845 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,845 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,845 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,845 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-27 18:21:31,849 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse8 (= ~a15~0 |old(~a15~0)|)) (.cse10 (= ~a24~0 |old(~a24~0)|)) (.cse9 (= ~a21~0 |old(~a21~0)|)) (.cse19 (= ~a15~0 8)) (.cse7 (= ~a12~0 |old(~a12~0)|))) (let ((.cse4 (not (= |old(~a24~0)| 1))) (.cse6 (= ~a24~0 1)) (.cse3 (not (<= |old(~a21~0)| 8))) (.cse0 (not (<= |old(~a12~0)| 73282))) (.cse12 (not (= 9 |old(~a15~0)|))) (.cse2 (and .cse10 .cse9 .cse19 .cse7)) (.cse13 (not (<= |old(~a12~0)| 75))) (.cse14 (not (<= 10 |old(~a21~0)|))) (.cse1 (not (= 8 |old(~a15~0)|))) (.cse15 (not (<= 1 |old(~a24~0)|))) (.cse16 (not (<= |old(~a24~0)| 1))) (.cse18 (not (<= |old(~a12~0)| 599999))) (.cse17 (not (<= 82 |old(~a12~0)|))) (.cse5 (not (= 7 |old(~a15~0)|))) (.cse11 (and .cse10 .cse9 .cse7 .cse8))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (not (<= 12 |old(~a12~0)|)) (not (= 9 |old(~a21~0)|)) (not (<= |old(~a12~0)| 80)) .cse5 (and .cse6 (= ~a21~0 9) .cse7 .cse8)) (or (not (= 10 |old(~a21~0)|)) (not (<= (+ |old(~a12~0)| 397559) 0)) .cse4 (and .cse9 .cse6 .cse7 .cse8) .cse5) (or .cse3 .cse5 (and (= 7 ~a15~0) .cse10 .cse9 .cse7)) (or .cse11 .cse12 .cse3 .cse13) (or .cse14 .cse11 .cse0 .cse12) (or .cse15 .cse16 .cse0 .cse1 .cse2 .cse17) (or .cse15 .cse16 .cse11 .cse12 .cse18 .cse17) (or .cse1 .cse2 .cse13) (or .cse15 .cse16 .cse1 (and .cse10 .cse19 (= ~a21~0 6) .cse7) (not (= 6 |old(~a21~0)|)) .cse18) (or .cse14 .cse11 .cse1) (or .cse15 .cse16 .cse11 .cse18 .cse17 .cse5) (or (not (<= |old(~a15~0)| 6)) .cse11)))) [2020-10-27 18:21:31,850 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-27 18:21:31,850 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-27 18:21:31,850 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-27 18:21:31,850 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-27 18:21:31,850 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-27 18:21:31,850 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-27 18:21:31,851 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-27 18:21:31,852 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-27 18:21:31,853 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-27 18:21:31,854 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-27 18:21:31,855 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-27 18:21:31,856 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-27 18:21:31,857 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-27 18:21:31,858 INFO L270 CegarLoopResult]: At program point L153(line 153) the Hoare annotation is: (let ((.cse8 (not (<= |old(~a12~0)| 75))) (.cse7 (not (<= |old(~a21~0)| 8))) (.cse5 (not (= |old(~a24~0)| 1))) (.cse4 (not (= 7 |old(~a15~0)|))) (.cse11 (not (<= 10 |old(~a21~0)|))) (.cse6 (not (= 9 |old(~a15~0)|))) (.cse10 (not (<= |old(~a12~0)| 73282))) (.cse3 (not (<= 82 |old(~a12~0)|))) (.cse0 (not (<= 1 |old(~a24~0)|))) (.cse1 (not (<= |old(~a24~0)| 1))) (.cse9 (not (= 8 |old(~a15~0)|))) (.cse2 (not (<= |old(~a12~0)| 599999)))) (and (not (<= |old(~a15~0)| 6)) (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= 10 |old(~a21~0)|)) (not (<= (+ |old(~a12~0)| 397559) 0)) .cse5 .cse4) (or .cse0 .cse1 .cse6 .cse2 .cse3) (or .cse7 .cse4) (or .cse6 .cse7 .cse8) (or .cse9 .cse8) (or .cse10 .cse9 .cse7) (or .cse11 .cse9) (or .cse5 (not (<= 12 |old(~a12~0)|)) (not (= 9 |old(~a21~0)|)) (not (<= |old(~a12~0)| 80)) .cse4) (or .cse11 .cse10 .cse6) (or .cse0 .cse1 .cse10 .cse9 .cse3) (or .cse0 .cse1 .cse9 (not (= 6 |old(~a21~0)|)) .cse2))) [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L153-1(line 153) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-27 18:21:31,859 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-27 18:21:31,860 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-27 18:21:31,861 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-27 18:21:31,862 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:21:31,863 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:21:31,864 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-10-27 18:21:31,864 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 18:21:31,864 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:21:31,864 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-10-27 18:21:31,864 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse12 (<= ~a12~0 75)) (.cse5 (= ~a15~0 8)) (.cse9 (<= 10 ~a21~0)) (.cse6 (<= ~a12~0 73282)) (.cse3 (= ~a15~0 |old(~a15~0)|)) (.cse11 (<= ~a21~0 8)) (.cse8 (= ~a24~0 1)) (.cse10 (= ~a15~0 9)) (.cse7 (= 7 ~a15~0)) (.cse4 (<= 82 ~a12~0)) (.cse0 (<= ~a24~0 1)) (.cse1 (<= 1 ~a24~0)) (.cse2 (<= ~a12~0 599999))) (or (and .cse0 (= ~a21~0 6) .cse1 .cse2 .cse3) (not (= |old(~a24~0)| 1)) (and .cse4 .cse0 .cse5 .cse1 .cse6) (not (= 8 |old(~a15~0)|)) (and .cse7 (<= 12 ~a12~0) .cse8 (<= ~a12~0 80) (= ~a21~0 9)) (and .cse9 .cse6 .cse10) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse11) (and .cse12 .cse10 .cse11) (and .cse12 .cse3) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse9) (and .cse6 .cse3 .cse11) (and .cse7 (= ~a21~0 10) (<= (+ ~a12~0 397559) 0) .cse8) (and .cse4 .cse0 .cse1 .cse2 .cse10) (and .cse7 .cse4 .cse0 .cse1 .cse2) (<= ~a15~0 6))) [2020-10-27 18:21:31,864 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-27 18:21:31,864 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:21:31,864 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-27 18:21:31,865 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse12 (<= ~a12~0 75)) (.cse5 (= ~a15~0 8)) (.cse9 (<= 10 ~a21~0)) (.cse6 (<= ~a12~0 73282)) (.cse3 (= ~a15~0 |old(~a15~0)|)) (.cse11 (<= ~a21~0 8)) (.cse8 (= ~a24~0 1)) (.cse10 (= ~a15~0 9)) (.cse7 (= 7 ~a15~0)) (.cse4 (<= 82 ~a12~0)) (.cse0 (<= ~a24~0 1)) (.cse1 (<= 1 ~a24~0)) (.cse2 (<= ~a12~0 599999))) (or (and .cse0 (= ~a21~0 6) .cse1 .cse2 .cse3) (not (= |old(~a24~0)| 1)) (and .cse4 .cse0 .cse5 .cse1 .cse6) (not (= 8 |old(~a15~0)|)) (and .cse7 (<= 12 ~a12~0) .cse8 (<= ~a12~0 80) (= ~a21~0 9)) (and .cse9 .cse6 .cse10) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse11) (and .cse12 .cse10 .cse11) (and .cse12 .cse3) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse9) (and .cse6 .cse3 .cse11) (and .cse7 (= ~a21~0 10) (<= (+ ~a12~0 397559) 0) .cse8) (and .cse4 .cse0 .cse1 .cse2 .cse10) (and .cse7 .cse4 .cse0 .cse1 .cse2) (<= ~a15~0 6))) [2020-10-27 18:21:31,865 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:21:31,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 06:21:31 BoogieIcfgContainer [2020-10-27 18:21:31,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 18:21:31,895 INFO L168 Benchmark]: Toolchain (without parser) took 203724.72 ms. Allocated memory was 151.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 123.5 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 892.1 MB. Max. memory is 8.0 GB. [2020-10-27 18:21:31,895 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 121.8 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 18:21:31,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.54 ms. Allocated memory is still 151.0 MB. Free memory was 122.8 MB in the beginning and 126.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. [2020-10-27 18:21:31,896 INFO L168 Benchmark]: Boogie Preprocessor took 163.83 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 121.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 18:21:31,897 INFO L168 Benchmark]: RCFGBuilder took 1754.96 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 120.7 MB in the beginning and 102.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. [2020-10-27 18:21:31,897 INFO L168 Benchmark]: TraceAbstraction took 200935.91 ms. Allocated memory was 184.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 102.3 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 836.0 MB. Max. memory is 8.0 GB. [2020-10-27 18:21:31,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 121.8 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 855.54 ms. Allocated memory is still 151.0 MB. Free memory was 122.8 MB in the beginning and 126.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 163.83 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 121.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1754.96 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 120.7 MB in the beginning and 102.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 200935.91 ms. Allocated memory was 184.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 102.3 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 836.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((((((((((((((((a24 <= 1 && a21 == 6) && 1 <= a24) && a12 <= 599999) && a15 == \old(a15)) || !(\old(a24) == 1)) || ((((82 <= a12 && a24 <= 1) && a15 == 8) && 1 <= a24) && a12 <= 73282)) || !(8 == \old(a15))) || ((((7 == a15 && 12 <= a12) && a24 == 1) && a12 <= 80) && a21 == 9)) || ((10 <= a21 && a12 <= 73282) && a15 == 9)) || !(\old(a12) + 49 <= 0)) || (7 == a15 && a21 <= 8)) || ((a12 <= 75 && a15 == 9) && a21 <= 8)) || (a12 <= 75 && a15 == \old(a15))) || !(7 == \old(a21))) || (a15 == 8 && 10 <= a21)) || ((a12 <= 73282 && a15 == \old(a15)) && a21 <= 8)) || (((7 == a15 && a21 == 10) && a12 + 397559 <= 0) && a24 == 1)) || ((((82 <= a12 && a24 <= 1) && 1 <= a24) && a12 <= 599999) && a15 == 9)) || ((((7 == a15 && 82 <= a12) && a24 <= 1) && 1 <= a24) && a12 <= 599999)) || a15 <= 6 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 188.7s, OverallIterations: 21, TraceHistogramMax: 7, AutomataDifference: 78.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 569 SDtfs, 11174 SDslu, 771 SDs, 0 SdLazy, 29494 SolverSat, 3412 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 44.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 472 GetRequests, 244 SyntacticMatches, 10 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 26.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5233occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 5375 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 709 PreInvPairs, 797 NumberOfFragments, 1006 HoareAnnotationTreeSize, 709 FomulaSimplifications, 5491559 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 162696 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 99.5s InterpolantComputationTime, 8385 NumberOfCodeBlocks, 8385 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 8364 ConstructedInterpolants, 0 QuantifiedInterpolants, 25673098 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 2 PerfectInterpolantSequences, 11361/12004 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...