/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:26:38,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:26:38,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:26:38,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:26:38,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:26:38,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:26:38,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:26:38,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:26:38,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:26:38,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:26:38,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:26:38,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:26:38,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:26:38,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:26:38,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:26:38,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:26:38,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:26:38,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:26:38,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:26:38,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:26:38,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:26:38,960 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:26:38,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:26:38,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:26:38,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:26:38,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:26:38,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:26:38,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:26:38,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:26:38,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:26:38,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:26:38,972 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:26:38,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:26:38,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:26:38,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:26:38,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:26:38,973 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:26:38,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:26:38,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:26:38,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:26:38,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:26:38,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:26:38,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:26:38,975 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:26:38,975 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:26:39,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:26:39,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:26:39,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:26:39,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:26:39,563 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:26:39,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2021-02-24 04:26:39,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96d51e0d3/b1c36ea06e164b44a8af3dcff95fbcc0/FLAG1625bb1f7 [2021-02-24 04:26:40,499 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:26:40,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2021-02-24 04:26:40,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96d51e0d3/b1c36ea06e164b44a8af3dcff95fbcc0/FLAG1625bb1f7 [2021-02-24 04:26:40,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96d51e0d3/b1c36ea06e164b44a8af3dcff95fbcc0 [2021-02-24 04:26:40,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:26:40,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:26:40,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:26:40,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:26:40,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:26:40,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:26:40" (1/1) ... [2021-02-24 04:26:40,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f11f8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:40, skipping insertion in model container [2021-02-24 04:26:40,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:26:40" (1/1) ... [2021-02-24 04:26:40,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:26:40,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:26:41,304 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label07.c[18480,18493] [2021-02-24 04:26:41,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:26:41,365 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:26:41,578 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label07.c[18480,18493] [2021-02-24 04:26:41,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:26:41,660 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:26:41,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41 WrapperNode [2021-02-24 04:26:41,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:26:41,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:26:41,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:26:41,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:26:41,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... [2021-02-24 04:26:41,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... [2021-02-24 04:26:41,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... [2021-02-24 04:26:41,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... [2021-02-24 04:26:41,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... [2021-02-24 04:26:41,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... [2021-02-24 04:26:41,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... [2021-02-24 04:26:41,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:26:41,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:26:41,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:26:41,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:26:41,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:26:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:26:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:26:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:26:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:26:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:26:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:26:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:26:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:26:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:26:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:26:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:26:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:26:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:26:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:26:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:26:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:26:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:26:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:26:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:26:43,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:26:43,638 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:26:43,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:26:43 BoogieIcfgContainer [2021-02-24 04:26:43,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:26:43,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:26:43,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:26:43,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:26:43,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:26:40" (1/3) ... [2021-02-24 04:26:43,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffaa04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:26:43, skipping insertion in model container [2021-02-24 04:26:43,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:41" (2/3) ... [2021-02-24 04:26:43,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffaa04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:26:43, skipping insertion in model container [2021-02-24 04:26:43,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:26:43" (3/3) ... [2021-02-24 04:26:43,656 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label07.c [2021-02-24 04:26:43,666 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:26:43,674 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:26:43,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:26:43,731 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:26:43,731 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:26:43,731 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:26:43,731 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:26:43,731 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:26:43,732 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:26:43,732 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:26:43,732 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:26:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-24 04:26:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-02-24 04:26:43,795 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:43,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:26:43,799 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:43,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:43,807 INFO L82 PathProgramCache]: Analyzing trace with hash -65770210, now seen corresponding path program 1 times [2021-02-24 04:26:43,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:43,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459907921] [2021-02-24 04:26:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:43,913 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:44,456 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-24 04:26:44,459 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-24 04:26:44,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:44,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:44,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:44,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:44,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:44,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:44,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:44,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:44,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:44,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:44,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459907921] [2021-02-24 04:26:44,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:44,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:26:44,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800536610] [2021-02-24 04:26:44,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:26:44,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:44,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:26:44,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:26:44,740 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 5 states. [2021-02-24 04:26:48,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:48,078 INFO L93 Difference]: Finished difference Result 1279 states and 1678 transitions. [2021-02-24 04:26:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:26:48,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2021-02-24 04:26:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:48,127 INFO L225 Difference]: With dead ends: 1279 [2021-02-24 04:26:48,128 INFO L226 Difference]: Without dead ends: 704 [2021-02-24 04:26:48,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:26:48,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-02-24 04:26:48,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 611. [2021-02-24 04:26:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-02-24 04:26:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 739 transitions. [2021-02-24 04:26:48,492 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 739 transitions. Word has length 140 [2021-02-24 04:26:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:48,497 INFO L480 AbstractCegarLoop]: Abstraction has 611 states and 739 transitions. [2021-02-24 04:26:48,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:26:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 739 transitions. [2021-02-24 04:26:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-02-24 04:26:48,526 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:48,526 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:26:48,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:26:48,528 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:48,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:48,529 INFO L82 PathProgramCache]: Analyzing trace with hash 483020150, now seen corresponding path program 1 times [2021-02-24 04:26:48,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:48,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514388470] [2021-02-24 04:26:48,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:48,613 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:48,648 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:48,661 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:48,670 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:48,726 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:48,749 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:48,768 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:48,776 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:48,784 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:48,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:48,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:48,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:48,807 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:48,813 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:48,820 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:48,827 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:48,844 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:48,887 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:48,899 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:48,915 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:48,922 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:48,927 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:48,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:48,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:48,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:48,939 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:48,944 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:48,953 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:48,959 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:48,968 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,007 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,011 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,021 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,024 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,028 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,048 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,054 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,066 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,078 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,087 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,129 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,132 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,139 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,142 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,144 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,152 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,157 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,167 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,171 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,180 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,216 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,219 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,224 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,226 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,229 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,237 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,240 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,248 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,251 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,259 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,304 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,307 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,311 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,313 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,315 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,324 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,327 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,334 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,337 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,348 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,385 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,387 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,393 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,395 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,398 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,405 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,407 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,412 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,415 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,421 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,458 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,461 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,465 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,467 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,469 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,478 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,481 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,488 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,491 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,498 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,547 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,550 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,556 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,558 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,560 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,567 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,575 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,583 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,587 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:26:49,592 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:26:49,631 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:26:49,633 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:26:49,638 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:26:49,639 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:49,641 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:49,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:49,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:26:49,653 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:26:49,653 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:26:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:50,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:50,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:50,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:50,074 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-02-24 04:26:50,076 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size 24 [2021-02-24 04:26:50,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:50,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:50,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:50,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:26:50,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:50,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:26:50,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:26:50,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:26:50,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:26:50,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:26:50,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:26:50,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:26:50,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:26:50,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:26:50,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-02-24 04:26:50,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-02-24 04:26:50,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-02-24 04:26:50,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-02-24 04:26:50,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-02-24 04:26:50,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-02-24 04:26:50,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:50,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:50,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:50,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-24 04:26:51,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:51,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:51,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-02-24 04:26:51,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:51,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:51,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-02-24 04:26:51,384 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-02-24 04:26:51,390 WARN L141 QuantifierPusher]: treesize reduction 83, result has 53.6 percent of original size [2021-02-24 04:26:51,394 WARN L147 QuantifierPusher]: treesize reduction 83, result has 53.6 percent of original size 96 [2021-02-24 04:26:51,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:26:51,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:26:51,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:26:51,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:26:51,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:26:51,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:51,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:26:51,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:26:51,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:26:51,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:26:51,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:51,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:26:52,036 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-02-24 04:26:52,037 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size 28 [2021-02-24 04:26:52,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:52,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:26:52,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:52,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:26:52,208 WARN L141 QuantifierPusher]: treesize reduction 46, result has 2.1 percent of original size [2021-02-24 04:26:52,209 WARN L147 QuantifierPusher]: treesize reduction 46, result has 2.1 percent of original size 1 [2021-02-24 04:26:52,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514388470] [2021-02-24 04:26:52,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:52,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-24 04:26:52,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206477283] [2021-02-24 04:26:52,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-24 04:26:52,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:52,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-24 04:26:52,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2021-02-24 04:26:52,214 INFO L87 Difference]: Start difference. First operand 611 states and 739 transitions. Second operand 25 states. [2021-02-24 04:26:52,799 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 97 [2021-02-24 04:26:53,106 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 99 [2021-02-24 04:26:53,384 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 97 [2021-02-24 04:26:53,659 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 103 [2021-02-24 04:26:53,931 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 103 [2021-02-24 04:26:54,228 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 105 [2021-02-24 04:26:54,592 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 124 [2021-02-24 04:26:54,782 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-02-24 04:26:56,831 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-02-24 04:26:57,078 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-02-24 04:26:57,280 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-24 04:26:57,520 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:26:58,283 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-24 04:27:06,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:27:06,921 INFO L93 Difference]: Finished difference Result 2616 states and 3563 transitions. [2021-02-24 04:27:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-02-24 04:27:06,922 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 162 [2021-02-24 04:27:06,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:27:06,948 INFO L225 Difference]: With dead ends: 2616 [2021-02-24 04:27:06,948 INFO L226 Difference]: Without dead ends: 2037 [2021-02-24 04:27:06,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=415, Invalid=1841, Unknown=0, NotChecked=0, Total=2256 [2021-02-24 04:27:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2021-02-24 04:27:07,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1314. [2021-02-24 04:27:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2021-02-24 04:27:07,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1686 transitions. [2021-02-24 04:27:07,402 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1686 transitions. Word has length 162 [2021-02-24 04:27:07,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:27:07,403 INFO L480 AbstractCegarLoop]: Abstraction has 1314 states and 1686 transitions. [2021-02-24 04:27:07,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-24 04:27:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1686 transitions. [2021-02-24 04:27:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-02-24 04:27:07,410 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:27:07,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:27:07,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:27:07,411 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:27:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:27:07,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1310603594, now seen corresponding path program 1 times [2021-02-24 04:27:07,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:27:07,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643361481] [2021-02-24 04:27:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:27:07,447 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11