/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:51:17,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:51:17,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:51:17,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:51:17,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:51:17,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:51:17,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:51:17,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:51:17,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:51:17,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:51:17,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:51:17,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:51:17,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:51:17,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:51:17,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:51:17,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:51:17,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:51:17,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:51:17,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:51:17,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:51:17,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:51:17,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:51:17,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:51:17,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:51:17,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:51:17,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:51:17,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:51:17,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:51:17,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:51:17,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:51:17,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:51:17,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:51:17,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:51:17,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:51:17,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:51:17,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:51:17,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:51:17,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:51:17,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:51:17,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:51:17,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:51:17,608 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 [2020-10-28 12:51:17,647 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:51:17,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:51:17,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:51:17,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:51:17,649 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:51:17,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:51:17,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:51:17,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:51:17,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:51:17,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:51:17,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:51:17,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:51:17,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:51:17,651 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:51:17,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:51:17,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:51:17,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:51:17,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:51:17,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:51:17,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:51:17,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:51:17,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:51:17,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:51:17,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:51:17,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:51:17,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:51:17,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:51:17,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:51:17,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:51:17,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:51:18,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:51:18,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:51:18,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:51:18,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:51:18,050 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:51:18,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label25.c [2020-10-28 12:51:18,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27a4c833d/69c778fe4eb74c03899d4569a5d01218/FLAG95c4e20e8 [2020-10-28 12:51:18,900 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:51:18,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label25.c [2020-10-28 12:51:18,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27a4c833d/69c778fe4eb74c03899d4569a5d01218/FLAG95c4e20e8 [2020-10-28 12:51:19,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27a4c833d/69c778fe4eb74c03899d4569a5d01218 [2020-10-28 12:51:19,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:51:19,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:51:19,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:51:19,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:51:19,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:51:19,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:51:19" (1/1) ... [2020-10-28 12:51:19,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579d09ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:19, skipping insertion in model container [2020-10-28 12:51:19,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:51:19" (1/1) ... [2020-10-28 12:51:19,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:51:19,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:51:19,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:51:19,920 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:51:20,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:51:20,188 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:51:20,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20 WrapperNode [2020-10-28 12:51:20,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:51:20,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:51:20,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:51:20,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:51:20,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (1/1) ... [2020-10-28 12:51:20,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (1/1) ... [2020-10-28 12:51:20,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (1/1) ... [2020-10-28 12:51:20,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (1/1) ... [2020-10-28 12:51:20,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (1/1) ... [2020-10-28 12:51:20,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (1/1) ... [2020-10-28 12:51:20,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (1/1) ... [2020-10-28 12:51:20,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:51:20,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:51:20,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:51:20,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:51:20,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (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 [2020-10-28 12:51:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:51:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:51:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:51:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:51:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:51:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:51:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:51:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:51:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:51:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:51:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:51:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:51:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:51:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:51:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:51:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:51:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:51:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:51:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:51:22,281 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:51:22,282 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:51:22,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:51:22 BoogieIcfgContainer [2020-10-28 12:51:22,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:51:22,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:51:22,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:51:22,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:51:22,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:51:19" (1/3) ... [2020-10-28 12:51:22,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41eaad8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:51:22, skipping insertion in model container [2020-10-28 12:51:22,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:51:20" (2/3) ... [2020-10-28 12:51:22,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41eaad8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:51:22, skipping insertion in model container [2020-10-28 12:51:22,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:51:22" (3/3) ... [2020-10-28 12:51:22,294 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label25.c [2020-10-28 12:51:22,308 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:51:22,316 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:51:22,331 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:51:22,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:51:22,374 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:51:22,374 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:51:22,374 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:51:22,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:51:22,375 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:51:22,375 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:51:22,375 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:51:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:51:22,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 12:51:22,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:22,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:22,425 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:22,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:22,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1671573206, now seen corresponding path program 1 times [2020-10-28 12:51:22,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:22,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537255089] [2020-10-28 12:51:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:23,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:23,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:51:23,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:23,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-28 12:51:23,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:23,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:51:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 12:51:23,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:51:23,562 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:51:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:23,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:23,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:23,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:51:23,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:23,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:51:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:23,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:51:23,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537255089] [2020-10-28 12:51:23,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:51:23,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 12:51:23,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132378353] [2020-10-28 12:51:23,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:51:23,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:23,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:51:23,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:51:23,686 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-28 12:51:27,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:27,500 INFO L93 Difference]: Finished difference Result 891 states and 1618 transitions. [2020-10-28 12:51:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:51:27,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2020-10-28 12:51:27,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:27,522 INFO L225 Difference]: With dead ends: 891 [2020-10-28 12:51:27,523 INFO L226 Difference]: Without dead ends: 565 [2020-10-28 12:51:27,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:27,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-28 12:51:27,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 561. [2020-10-28 12:51:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-28 12:51:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 856 transitions. [2020-10-28 12:51:27,638 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 856 transitions. Word has length 71 [2020-10-28 12:51:27,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:27,639 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 856 transitions. [2020-10-28 12:51:27,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:51:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 856 transitions. [2020-10-28 12:51:27,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-28 12:51:27,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:27,647 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, 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] [2020-10-28 12:51:27,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:51:27,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:27,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:27,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1481986889, now seen corresponding path program 1 times [2020-10-28 12:51:27,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:27,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10561993] [2020-10-28 12:51:27,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:27,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:28,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-28 12:51:29,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:29,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1519 [2020-10-28 12:51:29,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:51:29,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:51:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:29,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:29,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:51:29,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:51:29,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:51:29,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:51:29,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:51:29,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:51:29,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10561993] [2020-10-28 12:51:29,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:51:29,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:51:29,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189292683] [2020-10-28 12:51:29,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:29,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:29,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:29,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:29,586 INFO L87 Difference]: Start difference. First operand 561 states and 856 transitions. Second operand 7 states. [2020-10-28 12:51:32,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:32,248 INFO L93 Difference]: Finished difference Result 1690 states and 2628 transitions. [2020-10-28 12:51:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:51:32,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-28 12:51:32,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:32,263 INFO L225 Difference]: With dead ends: 1690 [2020-10-28 12:51:32,263 INFO L226 Difference]: Without dead ends: 1135 [2020-10-28 12:51:32,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2020-10-28 12:51:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1123. [2020-10-28 12:51:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-10-28 12:51:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1625 transitions. [2020-10-28 12:51:32,351 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1625 transitions. Word has length 140 [2020-10-28 12:51:32,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:32,352 INFO L481 AbstractCegarLoop]: Abstraction has 1123 states and 1625 transitions. [2020-10-28 12:51:32,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1625 transitions. [2020-10-28 12:51:32,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-28 12:51:32,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:32,356 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, 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] [2020-10-28 12:51:32,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:51:32,357 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:32,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:32,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1852885555, now seen corresponding path program 1 times [2020-10-28 12:51:32,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:32,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89653463] [2020-10-28 12:51:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:32,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:32,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:32,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:33,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:33,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-28 12:51:33,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:33,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 984 [2020-10-28 12:51:33,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:33,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:51:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:51:33,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:33,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:33,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:33,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:33,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:33,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:51:33,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:33,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:33,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:33,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:33,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:51:33,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:33,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:33,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:33,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:33,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:51:33,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:33,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 12:51:33,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:33,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:33,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:33,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:33,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:51:33,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:51:33,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89653463] [2020-10-28 12:51:33,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:51:33,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:51:33,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185350016] [2020-10-28 12:51:33,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:33,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:33,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:33,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:33,735 INFO L87 Difference]: Start difference. First operand 1123 states and 1625 transitions. Second operand 7 states. [2020-10-28 12:51:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:36,705 INFO L93 Difference]: Finished difference Result 3066 states and 4748 transitions. [2020-10-28 12:51:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:51:36,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-10-28 12:51:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:36,722 INFO L225 Difference]: With dead ends: 3066 [2020-10-28 12:51:36,723 INFO L226 Difference]: Without dead ends: 1949 [2020-10-28 12:51:36,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:36,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2020-10-28 12:51:36,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1881. [2020-10-28 12:51:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1881 states. [2020-10-28 12:51:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2540 transitions. [2020-10-28 12:51:36,827 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2540 transitions. Word has length 143 [2020-10-28 12:51:36,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:36,828 INFO L481 AbstractCegarLoop]: Abstraction has 1881 states and 2540 transitions. [2020-10-28 12:51:36,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:36,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2540 transitions. [2020-10-28 12:51:36,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-28 12:51:36,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:36,831 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, 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] [2020-10-28 12:51:36,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:51:36,832 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:36,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:36,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1017444561, now seen corresponding path program 1 times [2020-10-28 12:51:36,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:36,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904298904] [2020-10-28 12:51:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:36,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:36,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-28 12:51:38,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:38,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1969 [2020-10-28 12:51:38,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:51:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:38,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:38,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:51:38,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:51:38,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:39,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:39,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:39,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:51:39,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 12:51:39,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:39,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:51:39,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:51:39,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904298904] [2020-10-28 12:51:39,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:51:39,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:51:39,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931622774] [2020-10-28 12:51:39,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:39,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:39,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:39,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:39,230 INFO L87 Difference]: Start difference. First operand 1881 states and 2540 transitions. Second operand 7 states. [2020-10-28 12:51:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:41,534 INFO L93 Difference]: Finished difference Result 3232 states and 4476 transitions. [2020-10-28 12:51:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:51:41,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-28 12:51:41,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:41,548 INFO L225 Difference]: With dead ends: 3232 [2020-10-28 12:51:41,549 INFO L226 Difference]: Without dead ends: 2091 [2020-10-28 12:51:41,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2020-10-28 12:51:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2075. [2020-10-28 12:51:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2020-10-28 12:51:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2745 transitions. [2020-10-28 12:51:41,616 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2745 transitions. Word has length 144 [2020-10-28 12:51:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:41,617 INFO L481 AbstractCegarLoop]: Abstraction has 2075 states and 2745 transitions. [2020-10-28 12:51:41,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2745 transitions. [2020-10-28 12:51:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-28 12:51:41,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:41,622 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:41,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:51:41,622 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:41,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:41,623 INFO L82 PathProgramCache]: Analyzing trace with hash -619307396, now seen corresponding path program 1 times [2020-10-28 12:51:41,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:41,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529298037] [2020-10-28 12:51:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:41,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:41,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:42,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:42,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-28 12:51:44,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:51:44,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2907 [2020-10-28 12:51:44,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:51:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:51:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:44,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:44,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:44,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:51:44,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:44,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:44,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:44,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:51:44,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:44,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:51:44,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:44,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:44,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:51:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:51:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:44,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:44,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:51:44,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:44,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 12:51:44,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:44,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:51:44,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:45,175 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:51:45,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529298037] [2020-10-28 12:51:45,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:45,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:45,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485789454] [2020-10-28 12:51:45,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:45,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:45,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:45,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:45,178 INFO L87 Difference]: Start difference. First operand 2075 states and 2745 transitions. Second operand 7 states. [2020-10-28 12:51:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:48,496 INFO L93 Difference]: Finished difference Result 3802 states and 5330 transitions. [2020-10-28 12:51:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:51:48,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-28 12:51:48,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:48,509 INFO L225 Difference]: With dead ends: 3802 [2020-10-28 12:51:48,509 INFO L226 Difference]: Without dead ends: 2099 [2020-10-28 12:51:48,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:48,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2020-10-28 12:51:48,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2073. [2020-10-28 12:51:48,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2073 states. [2020-10-28 12:51:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2662 transitions. [2020-10-28 12:51:48,574 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2662 transitions. Word has length 228 [2020-10-28 12:51:48,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:48,575 INFO L481 AbstractCegarLoop]: Abstraction has 2073 states and 2662 transitions. [2020-10-28 12:51:48,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:48,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2662 transitions. [2020-10-28 12:51:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-28 12:51:48,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:48,580 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:48,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:51:48,580 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:48,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:48,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1803603312, now seen corresponding path program 1 times [2020-10-28 12:51:48,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:48,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616649489] [2020-10-28 12:51:48,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:50,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:51,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-28 12:51:51,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:51:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3207 [2020-10-28 12:51:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:51,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:51:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:51:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:51,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:51,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:51,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:51,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:51,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:51,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:51,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:51,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:51,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:51,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:52,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:51:52,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:52,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:51:52,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:52,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:52,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:52,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:52,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:52,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:52,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:51:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:52,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:52,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:51:52,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:52,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 12:51:52,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:52,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:51:52,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 206 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:51:52,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616649489] [2020-10-28 12:51:52,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:52,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:52,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623169250] [2020-10-28 12:51:52,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:52,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:52,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:52,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:52,356 INFO L87 Difference]: Start difference. First operand 2073 states and 2662 transitions. Second operand 7 states. [2020-10-28 12:51:54,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:54,827 INFO L93 Difference]: Finished difference Result 3784 states and 4969 transitions. [2020-10-28 12:51:54,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:51:54,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-10-28 12:51:54,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:54,837 INFO L225 Difference]: With dead ends: 3784 [2020-10-28 12:51:54,838 INFO L226 Difference]: Without dead ends: 1701 [2020-10-28 12:51:54,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:54,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2020-10-28 12:51:54,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1687. [2020-10-28 12:51:54,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2020-10-28 12:51:54,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 1902 transitions. [2020-10-28 12:51:54,897 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 1902 transitions. Word has length 238 [2020-10-28 12:51:54,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:54,898 INFO L481 AbstractCegarLoop]: Abstraction has 1687 states and 1902 transitions. [2020-10-28 12:51:54,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:54,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 1902 transitions. [2020-10-28 12:51:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2020-10-28 12:51:54,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:54,916 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, 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, 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, 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] [2020-10-28 12:51:54,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:51:54,916 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:54,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:54,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1558296637, now seen corresponding path program 1 times [2020-10-28 12:51:54,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:54,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247286927] [2020-10-28 12:51:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:55,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:55,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:58,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:00,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 673 [2020-10-28 12:52:00,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:52:00,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-28 12:52:00,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:00,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:52:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:52:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 294 [2020-10-28 12:52:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:00,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:00,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:00,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:52:00,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:00,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:00,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:00,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:00,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:52:00,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:00,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:00,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:00,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:00,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:00,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:00,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:00,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:00,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:00,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 12:52:00,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:00,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:52:00,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:00,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:00,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:00,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:00,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:52:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-28 12:52:00,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:00,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:52:00,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:00,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-28 12:52:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:01,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:01,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:01,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-28 12:52:01,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:01,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:01,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:01,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:01,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-10-28 12:52:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:01,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:01,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:01,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:01,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 12:52:01,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:01,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:01,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 660 proven. 77 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2020-10-28 12:52:01,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247286927] [2020-10-28 12:52:01,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:01,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:52:01,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630443247] [2020-10-28 12:52:01,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:52:01,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:01,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:52:01,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:01,892 INFO L87 Difference]: Start difference. First operand 1687 states and 1902 transitions. Second operand 8 states. [2020-10-28 12:52:04,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:04,728 INFO L93 Difference]: Finished difference Result 4689 states and 5554 transitions. [2020-10-28 12:52:04,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 12:52:04,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 653 [2020-10-28 12:52:04,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:04,745 INFO L225 Difference]: With dead ends: 4689 [2020-10-28 12:52:04,745 INFO L226 Difference]: Without dead ends: 3374 [2020-10-28 12:52:04,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:52:04,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2020-10-28 12:52:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 3173. [2020-10-28 12:52:04,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3173 states. [2020-10-28 12:52:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 3565 transitions. [2020-10-28 12:52:04,840 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 3565 transitions. Word has length 653 [2020-10-28 12:52:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:04,842 INFO L481 AbstractCegarLoop]: Abstraction has 3173 states and 3565 transitions. [2020-10-28 12:52:04,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:52:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 3565 transitions. [2020-10-28 12:52:04,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2020-10-28 12:52:04,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:04,864 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, 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, 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, 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] [2020-10-28 12:52:04,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:52:04,865 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:04,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:04,865 INFO L82 PathProgramCache]: Analyzing trace with hash 281665709, now seen corresponding path program 1 times [2020-10-28 12:52:04,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:04,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852068577] [2020-10-28 12:52:04,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:10,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 696 [2020-10-28 12:52:10,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-28 12:52:10,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:10,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:10,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-28 12:52:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:52:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:10,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:10,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:52:10,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:10,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:10,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:10,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:10,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:10,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:10,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:10,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:10,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:10,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:10,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:10,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:10,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:10,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:10,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:52:10,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:10,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:10,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:10,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:10,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:10,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:10,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:52:10,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:10,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 12:52:10,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:10,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:10,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:52:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:10,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-28 12:52:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:10,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:10,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:10,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-28 12:52:10,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:10,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:10,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:10,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:10,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:10,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-28 12:52:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:10,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:10,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:10,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:10,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:10,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:10,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 680 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-10-28 12:52:11,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852068577] [2020-10-28 12:52:11,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:11,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:11,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747745999] [2020-10-28 12:52:11,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:11,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:11,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:11,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:11,366 INFO L87 Difference]: Start difference. First operand 3173 states and 3565 transitions. Second operand 7 states. [2020-10-28 12:52:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:13,565 INFO L93 Difference]: Finished difference Result 7450 states and 8536 transitions. [2020-10-28 12:52:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:52:13,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 676 [2020-10-28 12:52:13,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:13,595 INFO L225 Difference]: With dead ends: 7450 [2020-10-28 12:52:13,595 INFO L226 Difference]: Without dead ends: 4465 [2020-10-28 12:52:13,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4465 states. [2020-10-28 12:52:13,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4465 to 4097. [2020-10-28 12:52:13,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4097 states. [2020-10-28 12:52:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4097 states to 4097 states and 4598 transitions. [2020-10-28 12:52:13,749 INFO L78 Accepts]: Start accepts. Automaton has 4097 states and 4598 transitions. Word has length 676 [2020-10-28 12:52:13,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:13,750 INFO L481 AbstractCegarLoop]: Abstraction has 4097 states and 4598 transitions. [2020-10-28 12:52:13,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:13,751 INFO L276 IsEmpty]: Start isEmpty. Operand 4097 states and 4598 transitions. [2020-10-28 12:52:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2020-10-28 12:52:13,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:13,764 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, 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, 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, 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] [2020-10-28 12:52:13,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:52:13,764 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:13,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:13,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1666851797, now seen corresponding path program 1 times [2020-10-28 12:52:13,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:13,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698664190] [2020-10-28 12:52:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:13,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:18,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:18,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 740 [2020-10-28 12:52:18,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-28 12:52:18,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:18,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 410 [2020-10-28 12:52:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:52:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:19,155 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:52:19,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:19,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:19,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:19,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:19,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:19,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:52:19,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:19,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:19,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:19,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:19,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:19,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:19,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:19,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:52:19,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:19,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:19,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:52:19,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:19,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:19,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:19,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:19,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:19,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:52:19,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:19,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:19,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:19,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:19,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:19,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:19,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:19,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:52:19,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:19,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-28 12:52:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:19,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-28 12:52:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:19,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:19,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:19,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:19,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:19,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-28 12:52:19,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:19,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:19,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:19,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-28 12:52:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:19,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:19,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:19,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:19,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:19,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:52:19,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:19,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:19,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:19,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:19,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:19,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 724 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-10-28 12:52:20,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698664190] [2020-10-28 12:52:20,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:20,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:20,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931594365] [2020-10-28 12:52:20,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:20,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:20,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:20,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:20,218 INFO L87 Difference]: Start difference. First operand 4097 states and 4598 transitions. Second operand 7 states. [2020-10-28 12:52:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:22,372 INFO L93 Difference]: Finished difference Result 8922 states and 10184 transitions. [2020-10-28 12:52:22,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:52:22,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 720 [2020-10-28 12:52:22,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:22,396 INFO L225 Difference]: With dead ends: 8922 [2020-10-28 12:52:22,396 INFO L226 Difference]: Without dead ends: 5197 [2020-10-28 12:52:22,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2020-10-28 12:52:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 5013. [2020-10-28 12:52:22,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5013 states. [2020-10-28 12:52:22,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 5723 transitions. [2020-10-28 12:52:22,552 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 5723 transitions. Word has length 720 [2020-10-28 12:52:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:22,554 INFO L481 AbstractCegarLoop]: Abstraction has 5013 states and 5723 transitions. [2020-10-28 12:52:22,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:22,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 5723 transitions. [2020-10-28 12:52:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2020-10-28 12:52:22,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:22,567 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, 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, 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, 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] [2020-10-28 12:52:22,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:52:22,568 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:22,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:22,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1975762800, now seen corresponding path program 1 times [2020-10-28 12:52:22,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:22,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839226933] [2020-10-28 12:52:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:22,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:22,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:25,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:25,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 818 [2020-10-28 12:52:27,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:27,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-28 12:52:27,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:52:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:27,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:27,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:27,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:27,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:27,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:27,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:27,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:52:27,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:27,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:28,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:28,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:28,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:28,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 12:52:28,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:28,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:52:28,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:28,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:28,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:28,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:28,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:52:28,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:28,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-28 12:52:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:28,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:28,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:28,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:28,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:28,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:52:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:28,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:28,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-28 12:52:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:28,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:28,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:52:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:28,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-28 12:52:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:28,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:28,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:28,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:28,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:28,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:52:28,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:28,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:28,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:29,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 620 proven. 320 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2020-10-28 12:52:29,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839226933] [2020-10-28 12:52:29,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:29,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:52:29,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717783673] [2020-10-28 12:52:29,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:52:29,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:29,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:52:29,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:29,126 INFO L87 Difference]: Start difference. First operand 5013 states and 5723 transitions. Second operand 8 states. [2020-10-28 12:52:32,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:32,071 INFO L93 Difference]: Finished difference Result 10216 states and 11794 transitions. [2020-10-28 12:52:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:52:32,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 796 [2020-10-28 12:52:32,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:32,100 INFO L225 Difference]: With dead ends: 10216 [2020-10-28 12:52:32,101 INFO L226 Difference]: Without dead ends: 5575 [2020-10-28 12:52:32,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:52:32,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2020-10-28 12:52:32,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5571. [2020-10-28 12:52:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5571 states. [2020-10-28 12:52:32,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5571 states to 5571 states and 6261 transitions. [2020-10-28 12:52:32,233 INFO L78 Accepts]: Start accepts. Automaton has 5571 states and 6261 transitions. Word has length 796 [2020-10-28 12:52:32,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:32,234 INFO L481 AbstractCegarLoop]: Abstraction has 5571 states and 6261 transitions. [2020-10-28 12:52:32,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:52:32,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5571 states and 6261 transitions. [2020-10-28 12:52:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2020-10-28 12:52:32,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:32,248 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, 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, 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, 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, 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] [2020-10-28 12:52:32,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:52:32,248 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:32,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1270492248, now seen corresponding path program 1 times [2020-10-28 12:52:32,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:32,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949191832] [2020-10-28 12:52:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:32,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 841 [2020-10-28 12:52:37,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-28 12:52:37,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:37,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:52:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:52:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:37,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:52:37,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:37,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:52:37,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:37,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:37,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:37,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:52:37,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:38,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:52:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:38,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:38,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:38,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:38,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-28 12:52:38,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:38,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:38,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:38,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-28 12:52:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:38,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:38,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:38,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1907 backedges. 892 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-28 12:52:38,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949191832] [2020-10-28 12:52:38,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:38,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:38,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175976812] [2020-10-28 12:52:38,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:38,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:38,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:38,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:38,759 INFO L87 Difference]: Start difference. First operand 5571 states and 6261 transitions. Second operand 7 states. [2020-10-28 12:52:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:40,642 INFO L93 Difference]: Finished difference Result 11138 states and 12547 transitions. [2020-10-28 12:52:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:52:40,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 819 [2020-10-28 12:52:40,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:40,668 INFO L225 Difference]: With dead ends: 11138 [2020-10-28 12:52:40,669 INFO L226 Difference]: Without dead ends: 5939 [2020-10-28 12:52:40,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2020-10-28 12:52:40,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 5573. [2020-10-28 12:52:40,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5573 states. [2020-10-28 12:52:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5573 states to 5573 states and 6268 transitions. [2020-10-28 12:52:40,799 INFO L78 Accepts]: Start accepts. Automaton has 5573 states and 6268 transitions. Word has length 819 [2020-10-28 12:52:40,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:40,800 INFO L481 AbstractCegarLoop]: Abstraction has 5573 states and 6268 transitions. [2020-10-28 12:52:40,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states and 6268 transitions. [2020-10-28 12:52:40,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2020-10-28 12:52:40,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:40,813 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 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] [2020-10-28 12:52:40,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:52:40,814 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:40,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:40,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1069874029, now seen corresponding path program 1 times [2020-10-28 12:52:40,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:40,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463570130] [2020-10-28 12:52:40,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:41,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:41,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:41,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:43,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:45,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:45,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 919 [2020-10-28 12:52:45,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:45,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 12:52:45,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:45,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:52:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:52:45,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:46,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:46,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:46,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:46,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:46,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:52:46,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:52:46,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 12:52:46,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:46,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:46,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:52:46,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:52:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:46,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 12:52:46,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:52:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:52:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:46,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:52:46,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:52:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:46,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-28 12:52:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:46,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:46,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:46,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:46,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:46,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:46,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:46,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:46,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2424 backedges. 780 proven. 146 refuted. 0 times theorem prover too weak. 1498 trivial. 0 not checked. [2020-10-28 12:52:47,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463570130] [2020-10-28 12:52:47,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:47,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:52:47,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183409171] [2020-10-28 12:52:47,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:52:47,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:47,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:52:47,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:47,371 INFO L87 Difference]: Start difference. First operand 5573 states and 6268 transitions. Second operand 8 states. [2020-10-28 12:52:48,329 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:52:50,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:50,323 INFO L93 Difference]: Finished difference Result 11514 states and 13110 transitions. [2020-10-28 12:52:50,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:52:50,329 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 895 [2020-10-28 12:52:50,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:50,351 INFO L225 Difference]: With dead ends: 11514 [2020-10-28 12:52:50,351 INFO L226 Difference]: Without dead ends: 6313 [2020-10-28 12:52:50,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:52:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6313 states. [2020-10-28 12:52:50,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6313 to 6309. [2020-10-28 12:52:50,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6309 states. [2020-10-28 12:52:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6309 states to 6309 states and 7116 transitions. [2020-10-28 12:52:50,500 INFO L78 Accepts]: Start accepts. Automaton has 6309 states and 7116 transitions. Word has length 895 [2020-10-28 12:52:50,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:50,501 INFO L481 AbstractCegarLoop]: Abstraction has 6309 states and 7116 transitions. [2020-10-28 12:52:50,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:52:50,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6309 states and 7116 transitions. [2020-10-28 12:52:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2020-10-28 12:52:50,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:50,519 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 4, 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, 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] [2020-10-28 12:52:50,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:52:50,520 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:50,520 INFO L82 PathProgramCache]: Analyzing trace with hash -377592408, now seen corresponding path program 1 times [2020-10-28 12:52:50,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:50,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634159968] [2020-10-28 12:52:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:51,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:52,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:55,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1020 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:52:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:55,994 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:52:55,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:56,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:52:56,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:56,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:52:56,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:56,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:52:56,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:56,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:52:56,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:56,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:52:56,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:56,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:56,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:56,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 12:52:56,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:52:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:56,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:56,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:56,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:56,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:56,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:56,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:52:56,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:56,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:52:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3060 backedges. 1031 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-28 12:52:57,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634159968] [2020-10-28 12:52:57,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:57,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:57,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481228967] [2020-10-28 12:52:57,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:57,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:57,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:57,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:57,387 INFO L87 Difference]: Start difference. First operand 6309 states and 7116 transitions. Second operand 7 states. [2020-10-28 12:52:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:59,845 INFO L93 Difference]: Finished difference Result 12252 states and 13863 transitions. [2020-10-28 12:52:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:52:59,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 994 [2020-10-28 12:52:59,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:59,866 INFO L225 Difference]: With dead ends: 12252 [2020-10-28 12:52:59,867 INFO L226 Difference]: Without dead ends: 6315 [2020-10-28 12:52:59,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:52:59,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6315 states. [2020-10-28 12:52:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6315 to 5941. [2020-10-28 12:52:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5941 states. [2020-10-28 12:53:00,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5941 states to 5941 states and 6622 transitions. [2020-10-28 12:53:00,006 INFO L78 Accepts]: Start accepts. Automaton has 5941 states and 6622 transitions. Word has length 994 [2020-10-28 12:53:00,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:00,007 INFO L481 AbstractCegarLoop]: Abstraction has 5941 states and 6622 transitions. [2020-10-28 12:53:00,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:53:00,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5941 states and 6622 transitions. [2020-10-28 12:53:00,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2020-10-28 12:53:00,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:00,028 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 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, 4, 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, 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] [2020-10-28 12:53:00,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:53:00,028 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:00,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:00,029 INFO L82 PathProgramCache]: Analyzing trace with hash -607039571, now seen corresponding path program 1 times [2020-10-28 12:53:00,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:00,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805896114] [2020-10-28 12:53:00,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:00,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:00,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:03,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1101 [2020-10-28 12:53:05,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:53:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-28 12:53:05,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 952 [2020-10-28 12:53:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:53:05,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:05,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:53:05,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:05,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:53:05,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:05,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:53:05,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:05,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:53:05,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:05,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:53:05,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:05,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:53:05,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:05,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:53:05,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:05,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:06,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:06,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:06,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:06,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:53:06,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:06,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-28 12:53:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:06,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:06,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:06,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:53:06,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:06,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 12:53:06,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:06,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:53:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3747 backedges. 1170 proven. 2 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2020-10-28 12:53:06,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805896114] [2020-10-28 12:53:06,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:06,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:53:06,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222395053] [2020-10-28 12:53:06,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:53:06,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:06,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:53:06,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:53:06,876 INFO L87 Difference]: Start difference. First operand 5941 states and 6622 transitions. Second operand 7 states. [2020-10-28 12:53:09,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:09,126 INFO L93 Difference]: Finished difference Result 11702 states and 13134 transitions. [2020-10-28 12:53:09,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:53:09,127 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1073 [2020-10-28 12:53:09,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:09,157 INFO L225 Difference]: With dead ends: 11702 [2020-10-28 12:53:09,157 INFO L226 Difference]: Without dead ends: 6133 [2020-10-28 12:53:09,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:53:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2020-10-28 12:53:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 5941. [2020-10-28 12:53:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5941 states. [2020-10-28 12:53:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5941 states to 5941 states and 6566 transitions. [2020-10-28 12:53:09,284 INFO L78 Accepts]: Start accepts. Automaton has 5941 states and 6566 transitions. Word has length 1073 [2020-10-28 12:53:09,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:09,286 INFO L481 AbstractCegarLoop]: Abstraction has 5941 states and 6566 transitions. [2020-10-28 12:53:09,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:53:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5941 states and 6566 transitions. [2020-10-28 12:53:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1081 [2020-10-28 12:53:09,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:09,306 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 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, 4, 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, 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] [2020-10-28 12:53:09,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:53:09,306 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:09,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:09,307 INFO L82 PathProgramCache]: Analyzing trace with hash 412118881, now seen corresponding path program 1 times [2020-10-28 12:53:09,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:09,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305343585] [2020-10-28 12:53:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:09,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1108 [2020-10-28 12:53:14,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:53:14,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-28 12:53:14,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:53:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:53:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-28 12:53:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:14,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:53:14,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:14,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:53:14,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:14,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:53:14,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:15,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:53:15,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:15,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:15,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:15,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:15,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:53:15,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:15,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:15,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:53:15,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:15,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:53:15,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:53:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:53:15,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:53:15,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:53:15,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:53:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-28 12:53:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:53:15,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:53:15,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:53:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:15,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1769 proven. 225 refuted. 0 times theorem prover too weak. 1790 trivial. 0 not checked. [2020-10-28 12:53:16,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305343585] [2020-10-28 12:53:16,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:16,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 12:53:16,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778969450] [2020-10-28 12:53:16,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 12:53:16,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:16,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 12:53:16,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:53:16,677 INFO L87 Difference]: Start difference. First operand 5941 states and 6566 transitions. Second operand 10 states. [2020-10-28 12:53:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:20,570 INFO L93 Difference]: Finished difference Result 13000 states and 14456 transitions. [2020-10-28 12:53:20,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 12:53:20,577 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1080 [2020-10-28 12:53:20,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:20,600 INFO L225 Difference]: With dead ends: 13000 [2020-10-28 12:53:20,601 INFO L226 Difference]: Without dead ends: 7431 [2020-10-28 12:53:20,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-28 12:53:20,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7431 states. [2020-10-28 12:53:20,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7431 to 7049. [2020-10-28 12:53:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2020-10-28 12:53:20,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 7827 transitions. [2020-10-28 12:53:20,785 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 7827 transitions. Word has length 1080 [2020-10-28 12:53:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:20,787 INFO L481 AbstractCegarLoop]: Abstraction has 7049 states and 7827 transitions. [2020-10-28 12:53:20,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 12:53:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 7827 transitions. [2020-10-28 12:53:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1134 [2020-10-28 12:53:20,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:20,812 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:53:20,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:53:20,813 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:20,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:20,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1288926765, now seen corresponding path program 1 times [2020-10-28 12:53:20,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:20,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015709906] [2020-10-28 12:53:20,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:21,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:21,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:21,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1161 [2020-10-28 12:53:26,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:53:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-28 12:53:26,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-28 12:53:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 12:53:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:26,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:53:26,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:26,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:53:26,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:26,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:53:26,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:26,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:53:26,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:26,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:53:26,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:26,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:53:26,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:26,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:53:26,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:26,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:26,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:26,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:26,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:26,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:26,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:53:26,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:26,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:53:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:27,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:27,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:53:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4061 backedges. 1305 proven. 2 refuted. 0 times theorem prover too weak. 2754 trivial. 0 not checked. [2020-10-28 12:53:28,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015709906] [2020-10-28 12:53:28,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:28,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:53:28,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217790327] [2020-10-28 12:53:28,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:53:28,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:28,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:53:28,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:53:28,044 INFO L87 Difference]: Start difference. First operand 7049 states and 7827 transitions. Second operand 7 states. [2020-10-28 12:53:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:30,233 INFO L93 Difference]: Finished difference Result 13744 states and 15308 transitions. [2020-10-28 12:53:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:53:30,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1133 [2020-10-28 12:53:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:30,254 INFO L225 Difference]: With dead ends: 13744 [2020-10-28 12:53:30,254 INFO L226 Difference]: Without dead ends: 7067 [2020-10-28 12:53:30,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:53:30,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2020-10-28 12:53:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 7049. [2020-10-28 12:53:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2020-10-28 12:53:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 7815 transitions. [2020-10-28 12:53:30,390 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 7815 transitions. Word has length 1133 [2020-10-28 12:53:30,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:30,392 INFO L481 AbstractCegarLoop]: Abstraction has 7049 states and 7815 transitions. [2020-10-28 12:53:30,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:53:30,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 7815 transitions. [2020-10-28 12:53:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1441 [2020-10-28 12:53:30,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:30,417 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-28 12:53:30,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:53:30,417 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:30,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:30,418 INFO L82 PathProgramCache]: Analyzing trace with hash -255812341, now seen corresponding path program 1 times [2020-10-28 12:53:30,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:30,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167541335] [2020-10-28 12:53:30,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:32,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:32,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:32,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1472 [2020-10-28 12:53:32,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:53:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2091 [2020-10-28 12:53:32,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:32,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1399 [2020-10-28 12:53:32,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 12:53:32,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:33,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:53:33,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:33,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:53:33,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:33,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:53:33,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:33,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:53:33,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:33,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:53:33,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:53:33,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:33,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:53:33,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:33,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:53:33,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:33,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:53:33,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:33,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:53:33,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:53:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:33,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:33,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:33,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:33,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:33,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:53:33,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:33,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:53:33,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:33,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:33,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:53:33,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 6254 backedges. 712 proven. 11 refuted. 0 times theorem prover too weak. 5531 trivial. 0 not checked. [2020-10-28 12:53:34,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167541335] [2020-10-28 12:53:34,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:34,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:53:34,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059045453] [2020-10-28 12:53:34,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:53:34,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:34,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:53:34,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:53:34,841 INFO L87 Difference]: Start difference. First operand 7049 states and 7815 transitions. Second operand 5 states. [2020-10-28 12:53:36,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:36,404 INFO L93 Difference]: Finished difference Result 13732 states and 15261 transitions. [2020-10-28 12:53:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:53:36,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1440 [2020-10-28 12:53:36,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:36,424 INFO L225 Difference]: With dead ends: 13732 [2020-10-28 12:53:36,424 INFO L226 Difference]: Without dead ends: 7055 [2020-10-28 12:53:36,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:53:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7055 states. [2020-10-28 12:53:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7055 to 7049. [2020-10-28 12:53:36,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2020-10-28 12:53:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 7740 transitions. [2020-10-28 12:53:36,560 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 7740 transitions. Word has length 1440 [2020-10-28 12:53:36,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:36,563 INFO L481 AbstractCegarLoop]: Abstraction has 7049 states and 7740 transitions. [2020-10-28 12:53:36,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:53:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 7740 transitions. [2020-10-28 12:53:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1456 [2020-10-28 12:53:36,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:36,599 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-28 12:53:36,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:53:36,599 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:36,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:36,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1936999029, now seen corresponding path program 1 times [2020-10-28 12:53:36,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:36,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405492123] [2020-10-28 12:53:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:36,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:37,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:37,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:41,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:41,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1487 [2020-10-28 12:53:41,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:53:41,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5146 [2020-10-28 12:53:42,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:53:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:53:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 282 [2020-10-28 12:53:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:42,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:53:42,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:42,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:53:42,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:42,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:53:42,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:42,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:53:42,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:42,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:53:42,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:42,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:42,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:42,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:53:42,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:42,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:42,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:42,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:43,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:43,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:43,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:43,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:53:43,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:43,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:43,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:43,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:43,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:53:43,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:43,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:53:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:43,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:43,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:43,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:53:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:43,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:43,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:43,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:43,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:53:43,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:53:43,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:43,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:53:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 6375 backedges. 2624 proven. 94 refuted. 0 times theorem prover too weak. 3657 trivial. 0 not checked. [2020-10-28 12:53:45,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405492123] [2020-10-28 12:53:45,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:45,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:53:45,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073174450] [2020-10-28 12:53:45,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:53:45,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:45,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:53:45,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:53:45,062 INFO L87 Difference]: Start difference. First operand 7049 states and 7740 transitions. Second operand 8 states. [2020-10-28 12:53:47,200 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:53:47,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:47,423 INFO L93 Difference]: Finished difference Result 13928 states and 15343 transitions. [2020-10-28 12:53:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:53:47,424 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1455 [2020-10-28 12:53:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:47,446 INFO L225 Difference]: With dead ends: 13928 [2020-10-28 12:53:47,447 INFO L226 Difference]: Without dead ends: 7251 [2020-10-28 12:53:47,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:53:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7251 states. [2020-10-28 12:53:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7251 to 7231. [2020-10-28 12:53:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7231 states. [2020-10-28 12:53:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7231 states to 7231 states and 7930 transitions. [2020-10-28 12:53:47,583 INFO L78 Accepts]: Start accepts. Automaton has 7231 states and 7930 transitions. Word has length 1455 [2020-10-28 12:53:47,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:47,586 INFO L481 AbstractCegarLoop]: Abstraction has 7231 states and 7930 transitions. [2020-10-28 12:53:47,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:53:47,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7231 states and 7930 transitions. [2020-10-28 12:53:47,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1539 [2020-10-28 12:53:47,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:47,617 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 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, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:53:47,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:53:47,617 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:47,619 INFO L82 PathProgramCache]: Analyzing trace with hash -734768753, now seen corresponding path program 1 times [2020-10-28 12:53:47,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:47,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082549768] [2020-10-28 12:53:47,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:47,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1570 [2020-10-28 12:53:50,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:53:50,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2435 [2020-10-28 12:53:50,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-28 12:53:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 12:53:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:50,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:53:50,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:53:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:50,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:53:50,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:50,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:53:50,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:50,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:53:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:50,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:53:50,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:50,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:53:50,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:50,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:50,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:50,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:50,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:50,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:53:50,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:50,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:50,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:50,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:50,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:51,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:51,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:51,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:51,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:51,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:53:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:51,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:51,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:53:51,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:53:51,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:51,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:51,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:51,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:51,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:51,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:53:51,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:51,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:53:51,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:51,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:51,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:51,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:51,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 12:53:51,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6742 backedges. 712 proven. 11 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-10-28 12:53:52,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082549768] [2020-10-28 12:53:52,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:52,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:53:52,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528383742] [2020-10-28 12:53:52,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:53:52,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:53:52,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:53:52,751 INFO L87 Difference]: Start difference. First operand 7231 states and 7930 transitions. Second operand 5 states. [2020-10-28 12:53:54,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:54,565 INFO L93 Difference]: Finished difference Result 14096 states and 15491 transitions. [2020-10-28 12:53:54,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:53:54,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1538 [2020-10-28 12:53:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:54,585 INFO L225 Difference]: With dead ends: 14096 [2020-10-28 12:53:54,586 INFO L226 Difference]: Without dead ends: 7237 [2020-10-28 12:53:54,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:53:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7237 states. [2020-10-28 12:53:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7237 to 7049. [2020-10-28 12:53:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2020-10-28 12:53:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 7647 transitions. [2020-10-28 12:53:54,718 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 7647 transitions. Word has length 1538 [2020-10-28 12:53:54,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:54,720 INFO L481 AbstractCegarLoop]: Abstraction has 7049 states and 7647 transitions. [2020-10-28 12:53:54,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:53:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 7647 transitions. [2020-10-28 12:53:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1658 [2020-10-28 12:53:54,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:54,757 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 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, 4, 3, 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] [2020-10-28 12:53:54,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:53:54,757 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:54,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:54,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1298611820, now seen corresponding path program 1 times [2020-10-28 12:53:54,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:54,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298494158] [2020-10-28 12:53:54,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:55,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:56,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:58,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1691 [2020-10-28 12:54:00,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:54:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-28 12:54:00,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-28 12:54:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:54:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:54:00,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:00,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:54:00,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:00,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:54:00,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:00,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:54:00,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:54:00,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:54:00,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:54:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:00,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:54:00,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:54:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:54:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:00,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:54:00,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:00,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:54:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:00,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:00,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:00,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:54:00,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:00,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:54:00,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:00,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:01,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:54:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:01,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:01,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:01,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:54:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:54:01,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:01,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:01,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:54:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:01,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:01,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:54:01,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:01,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:54:01,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:01,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:01,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:54:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:01,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 12:54:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:01,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-28 12:54:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:01,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:01,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:54:01,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 8011 backedges. 1979 proven. 2 refuted. 0 times theorem prover too weak. 6030 trivial. 0 not checked. [2020-10-28 12:54:02,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298494158] [2020-10-28 12:54:02,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:02,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:02,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636772104] [2020-10-28 12:54:02,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:02,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:02,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:02,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:02,835 INFO L87 Difference]: Start difference. First operand 7049 states and 7647 transitions. Second operand 7 states. [2020-10-28 12:54:05,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:05,329 INFO L93 Difference]: Finished difference Result 15058 states and 16491 transitions. [2020-10-28 12:54:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:54:05,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1657 [2020-10-28 12:54:05,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:05,352 INFO L225 Difference]: With dead ends: 15058 [2020-10-28 12:54:05,352 INFO L226 Difference]: Without dead ends: 7269 [2020-10-28 12:54:05,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:54:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2020-10-28 12:54:05,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 7037. [2020-10-28 12:54:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7037 states. [2020-10-28 12:54:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 7572 transitions. [2020-10-28 12:54:05,498 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 7572 transitions. Word has length 1657 [2020-10-28 12:54:05,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:05,500 INFO L481 AbstractCegarLoop]: Abstraction has 7037 states and 7572 transitions. [2020-10-28 12:54:05,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:05,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 7572 transitions. [2020-10-28 12:54:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1720 [2020-10-28 12:54:05,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:05,540 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-28 12:54:05,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:54:05,540 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:05,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:05,541 INFO L82 PathProgramCache]: Analyzing trace with hash -879291863, now seen corresponding path program 1 times [2020-10-28 12:54:05,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:05,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464406330] [2020-10-28 12:54:05,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:06,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:06,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1755 [2020-10-28 12:54:11,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:54:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5201 [2020-10-28 12:54:11,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:54:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-28 12:54:11,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 12:54:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:11,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:54:11,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:54:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:11,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:54:11,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:54:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:54:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:54:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:11,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:54:11,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:54:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:54:11,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:54:11,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:11,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:54:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:11,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:11,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:11,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:54:11,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:11,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:54:11,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:11,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:11,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:11,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:12,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:54:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:12,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:12,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:12,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:54:12,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:54:12,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:12,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:12,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:12,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:12,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:12,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:54:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:12,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:12,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:54:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:12,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:12,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:12,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:54:12,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:12,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 12:54:12,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:12,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:54:12,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:12,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:54:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:12,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:12,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:12,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:54:12,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:12,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-28 12:54:12,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:12,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:12,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:54:12,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:12,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:54:12,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:14,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9189 backedges. 2130 proven. 29 refuted. 0 times theorem prover too weak. 7030 trivial. 0 not checked. [2020-10-28 12:54:14,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464406330] [2020-10-28 12:54:14,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:14,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:54:14,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541841756] [2020-10-28 12:54:14,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:54:14,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:14,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:54:14,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:54:14,423 INFO L87 Difference]: Start difference. First operand 7037 states and 7572 transitions. Second operand 8 states. [2020-10-28 12:54:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:16,678 INFO L93 Difference]: Finished difference Result 13763 states and 14861 transitions. [2020-10-28 12:54:16,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:54:16,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1719 [2020-10-28 12:54:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:16,697 INFO L225 Difference]: With dead ends: 13763 [2020-10-28 12:54:16,697 INFO L226 Difference]: Without dead ends: 7035 [2020-10-28 12:54:16,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:54:16,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7035 states. [2020-10-28 12:54:16,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7035 to 6487. [2020-10-28 12:54:16,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6487 states. [2020-10-28 12:54:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6487 states to 6487 states and 6936 transitions. [2020-10-28 12:54:16,823 INFO L78 Accepts]: Start accepts. Automaton has 6487 states and 6936 transitions. Word has length 1719 [2020-10-28 12:54:16,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:16,825 INFO L481 AbstractCegarLoop]: Abstraction has 6487 states and 6936 transitions. [2020-10-28 12:54:16,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:54:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6487 states and 6936 transitions. [2020-10-28 12:54:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1735 [2020-10-28 12:54:16,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:54:16,865 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 6, 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, 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] [2020-10-28 12:54:16,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 12:54:16,866 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:54:16,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:54:16,867 INFO L82 PathProgramCache]: Analyzing trace with hash -2118811583, now seen corresponding path program 1 times [2020-10-28 12:54:16,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:54:16,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942318441] [2020-10-28 12:54:16,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:54:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:17,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:17,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:19,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:21,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1770 [2020-10-28 12:54:22,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:54:22,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-28 12:54:22,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-28 12:54:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-28 12:54:22,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:54:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:54:22,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:54:22,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:54:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:54:22,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:54:22,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:54:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:54:22,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:54:22,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:54:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:54:22,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:54:22,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:54:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:54:22,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:54:22,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:54:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:54:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:54:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:22,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:22,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:22,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:22,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:54:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:22,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:23,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:54:23,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:23,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:54:23,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:23,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:23,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:54:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:23,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:23,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:54:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:23,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:23,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:54:23,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:23,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:54:23,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:23,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:23,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:23,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:54:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:23,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:23,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 12:54:23,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 12:54:23,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:23,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:54:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:54:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:54:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:23,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-28 12:54:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:23,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:23,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 12:54:23,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-28 12:54:23,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:23,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:54:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:54:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 12:54:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:23,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1552 [2020-10-28 12:54:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:54:23,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:54:23,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:54:23,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:54:23,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:54:23,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:54:23,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:54:23,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:54:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:54:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:54:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:54:23,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:54:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 9237 backedges. 2174 proven. 118 refuted. 0 times theorem prover too weak. 6945 trivial. 0 not checked. [2020-10-28 12:54:25,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942318441] [2020-10-28 12:54:25,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:54:25,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:54:25,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119954331] [2020-10-28 12:54:25,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:54:25,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:54:25,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:54:25,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:54:25,878 INFO L87 Difference]: Start difference. First operand 6487 states and 6936 transitions. Second operand 7 states. [2020-10-28 12:54:27,997 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:54:28,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:54:28,124 INFO L93 Difference]: Finished difference Result 12813 states and 13788 transitions. [2020-10-28 12:54:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:54:28,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1734 [2020-10-28 12:54:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:54:28,127 INFO L225 Difference]: With dead ends: 12813 [2020-10-28 12:54:28,127 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:54:28,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:54:28,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:54:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:54:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:54:28,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:54:28,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1734 [2020-10-28 12:54:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:54:28,142 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:54:28,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:54:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:54:28,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:54:28,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 12:54:28,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:54:28,831 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 200 [2020-10-28 12:54:29,901 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 200 [2020-10-28 12:54:30,975 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 56 [2020-10-28 12:54:31,092 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 28 [2020-10-28 12:54:33,601 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 318 DAG size of output: 88 [2020-10-28 12:54:34,480 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 56 [2020-10-28 12:54:35,343 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 58 [2020-10-28 12:54:35,350 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:54:35,351 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:54:35,351 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:54:35,351 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:54:35,351 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:54:35,353 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)|)) [2020-10-28 12:54:35,353 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:54:35,353 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-28 12:54:35,353 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:54:35,353 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:54:35,353 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-28 12:54:35,354 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:54:35,355 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:54:35,355 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:54:35,355 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-28 12:54:35,355 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-28 12:54:35,355 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-28 12:54:35,355 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-28 12:54:35,355 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,356 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,356 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,356 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-28 12:54:35,357 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-28 12:54:35,357 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:54:35,357 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:54:35,357 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:54:35,357 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-28 12:54:35,357 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-28 12:54:35,358 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-28 12:54:35,358 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,358 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,358 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,360 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-28 12:54:35,360 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:54:35,360 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:54:35,360 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:54:35,360 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-28 12:54:35,360 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:54:35,361 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:54:35,362 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-28 12:54:35,363 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,364 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,365 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-28 12:54:35,366 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse16 (= ~a21~0 9)) (.cse7 (= ~a24~0 |old(~a24~0)|)) (.cse12 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a12~0 |old(~a12~0)|)) (.cse10 (= ~a15~0 |old(~a15~0)|))) (let ((.cse5 (<= ~a21~0 7)) (.cse6 (<= 7 ~a21~0)) (.cse3 (not (<= 7 |old(~a21~0)|))) (.cse9 (not (<= |old(~a21~0)| 7))) (.cse4 (= 7 ~a15~0)) (.cse2 (not (= 7 |old(~a15~0)|))) (.cse13 (and .cse7 .cse12 .cse8 .cse10)) (.cse14 (not (= 8 |old(~a15~0)|))) (.cse11 (not (<= |old(~a21~0)| 6))) (.cse15 (= ~a15~0 8)) (.cse1 (and .cse7 .cse16 .cse8 .cse10)) (.cse0 (not (= 9 |old(~a21~0)|)))) (and (or (not (<= 81 |old(~a12~0)|)) .cse0 .cse1) (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8) .cse9 .cse2) (or (not (<= 8 |old(~a15~0)|)) (and .cse5 .cse6 .cse7 .cse8 .cse10) .cse3 .cse9) (or .cse11 (and .cse4 .cse7 .cse12 .cse8) .cse2) (or (and .cse7 (= ~a21~0 8) .cse8 .cse10) (not (= 8 |old(~a21~0)|))) (or .cse13 (not (<= |old(~a12~0)| 95442)) .cse11) (or (not (= 10 |old(~a21~0)|)) .cse13) (or .cse14 .cse0 (and .cse7 .cse15 .cse16 .cse8) (not (<= |old(~a12~0)| 76))) (or (not (= |old(~a24~0)| 1)) (and (= 5 ~a15~0) .cse12 (= ~a24~0 1) .cse8) (not (= 5 |old(~a15~0)|))) (or .cse14 .cse11 (and .cse7 .cse12 .cse15 .cse8)) (or (not (<= |old(~a15~0)| 6)) .cse1 .cse0 (not (<= |old(~a12~0)| 75)))))) [2020-10-28 12:54:35,366 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-28 12:54:35,366 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:54:35,366 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:54:35,366 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:54:35,366 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-28 12:54:35,367 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-28 12:54:35,368 INFO L270 CegarLoopResult]: At program point L198(line 198) the Hoare annotation is: (let ((.cse1 (not (= 7 |old(~a15~0)|))) (.cse0 (not (<= |old(~a21~0)| 8))) (.cse3 (not (= 8 |old(~a15~0)|))) (.cse2 (not (= 9 |old(~a21~0)|)))) (and (not (= 10 |old(~a21~0)|)) (or .cse0 .cse1) (or (not (<= |old(~a15~0)| 6)) .cse2 (not (<= |old(~a12~0)| 75))) (not (= 8 |old(~a21~0)|)) (or (not (= |old(~a24~0)| 1)) (not (= 5 |old(~a15~0)|))) (or .cse3 .cse0) (or (not (<= |old(~a12~0)| 95442)) (not (<= |old(~a21~0)| 6))) (or .cse2 .cse1) (or (not (<= 81 |old(~a12~0)|)) .cse2) (or (not (<= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) .cse0) (or .cse3 .cse2 (not (<= |old(~a12~0)| 76))))) [2020-10-28 12:54:35,368 INFO L274 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:54:35,369 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:54:35,370 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:54:35,371 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-28 12:54:35,372 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-28 12:54:35,373 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-28 12:54:35,374 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,375 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-28 12:54:35,376 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-28 12:54:35,377 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-28 12:54:35,378 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-28 12:54:35,379 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:54:35,380 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a21~0 7) (<= 7 ~a21~0) (= ~a15~0 8) (= (+ ~a12~0 49) 0)) [2020-10-28 12:54:35,380 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:54:35,380 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:54:35,381 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= (+ |old(~a12~0)| 49) 0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (and (<= ~a21~0 7) (<= 7 ~a21~0) (= ~a24~0 |old(~a24~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|))) [2020-10-28 12:54:35,381 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse0 (<= ~a21~0 8)) (.cse2 (= 7 ~a15~0)) (.cse1 (= ~a15~0 8)) (.cse3 (= ~a21~0 9))) (or (and (<= 7 ~a21~0) (<= 8 ~a15~0) .cse0) (= ~a21~0 10) (not (= 8 |old(~a15~0)|)) (and (<= ~a21~0 7) .cse1) (not (<= |old(~a21~0)| 7)) (and .cse2 .cse0) (and (= 5 ~a15~0) (= ~a24~0 1)) (and .cse2 .cse3) (not (= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 95442) (<= ~a21~0 6)) (= ~a21~0 8) (not (<= 7 |old(~a21~0)|)) (and (<= 81 ~a12~0) .cse3) (and (<= ~a12~0 75) .cse3 (<= ~a15~0 6)) (and .cse1 .cse3 (<= ~a12~0 76)))) [2020-10-28 12:54:35,381 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-28 12:54:35,381 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:54:35,381 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-28 12:54:35,382 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (<= ~a21~0 8)) (.cse2 (= 7 ~a15~0)) (.cse1 (= ~a15~0 8)) (.cse3 (= ~a21~0 9))) (or (and (<= 7 ~a21~0) (<= 8 ~a15~0) .cse0) (= ~a21~0 10) (not (= 8 |old(~a15~0)|)) (and (<= ~a21~0 7) .cse1) (not (<= |old(~a21~0)| 7)) (and .cse2 .cse0) (and (= 5 ~a15~0) (= ~a24~0 1)) (and .cse2 .cse3) (not (= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 95442) (<= ~a21~0 6)) (= ~a21~0 8) (not (<= 7 |old(~a21~0)|)) (and (<= 81 ~a12~0) .cse3) (and (<= ~a12~0 75) .cse3 (<= ~a15~0 6)) (and .cse1 .cse3 (<= ~a12~0 76)))) [2020-10-28 12:54:35,382 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:54:35,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:54:35 BoogieIcfgContainer [2020-10-28 12:54:35,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:54:35,405 INFO L168 Benchmark]: Toolchain (without parser) took 196235.38 ms. Allocated memory was 152.0 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 124.2 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2020-10-28 12:54:35,406 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 152.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:54:35,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1006.43 ms. Allocated memory is still 152.0 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 174.3 kB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. [2020-10-28 12:54:35,407 INFO L168 Benchmark]: Boogie Preprocessor took 155.18 ms. Allocated memory is still 152.0 MB. Free memory was 123.4 MB in the beginning and 117.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:54:35,407 INFO L168 Benchmark]: RCFGBuilder took 1938.54 ms. Allocated memory is still 152.0 MB. Free memory was 117.6 MB in the beginning and 77.9 MB in the end (delta: 39.7 MB). Peak memory consumption was 76.4 MB. Max. memory is 8.0 GB. [2020-10-28 12:54:35,408 INFO L168 Benchmark]: TraceAbstraction took 193117.43 ms. Allocated memory was 152.0 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 77.9 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2020-10-28 12:54:35,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 152.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1006.43 ms. Allocated memory is still 152.0 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 174.3 kB). Peak memory consumption was 26.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 155.18 ms. Allocated memory is still 152.0 MB. Free memory was 123.4 MB in the beginning and 117.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1938.54 ms. Allocated memory is still 152.0 MB. Free memory was 117.6 MB in the beginning and 77.9 MB in the end (delta: 39.7 MB). Peak memory consumption was 76.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 193117.43 ms. Allocated memory was 152.0 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 77.9 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. 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: (((((((((((((((7 <= a21 && 8 <= a15) && a21 <= 8) || a21 == 10) || !(8 == \old(a15))) || (a21 <= 7 && a15 == 8)) || !(\old(a21) <= 7)) || (7 == a15 && a21 <= 8)) || (5 == a15 && a24 == 1)) || (7 == a15 && a21 == 9)) || !(\old(a12) + 49 == 0)) || (a12 <= 95442 && a21 <= 6)) || a21 == 8) || !(7 <= \old(a21))) || (81 <= a12 && a21 == 9)) || ((a12 <= 75 && a21 == 9) && a15 <= 6)) || ((a15 == 8 && a21 == 9) && a12 <= 76) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 185.7s, OverallIterations: 22, TraceHistogramMax: 14, AutomataDifference: 56.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 622 SDtfs, 14197 SDslu, 869 SDs, 0 SdLazy, 25053 SolverSat, 2699 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 636 GetRequests, 413 SyntacticMatches, 8 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7231occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 3227 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1140 PreInvPairs, 1254 NumberOfFragments, 688 HoareAnnotationTreeSize, 1140 FomulaSimplifications, 268559 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14909 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 107.7s InterpolantComputationTime, 19346 NumberOfCodeBlocks, 19346 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 19324 ConstructedInterpolants, 0 QuantifiedInterpolants, 36511460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 4 PerfectInterpolantSequences, 69796/71058 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...