/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/Problem02_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:34:34,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:34:34,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:34:34,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:34:34,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:34:34,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:34:34,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:34:34,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:34:34,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:34:34,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:34:34,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:34:34,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:34:34,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:34:34,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:34:34,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:34:34,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:34:34,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:34:34,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:34:34,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:34:34,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:34:34,531 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 04:34:34,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:34:34,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:34:34,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:34:34,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:34:34,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:34:34,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:34:34,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:34:34,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:34:34,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:34:34,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:34:34,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:34:34,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:34:34,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:34:34,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:34:34,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:34:34,548 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:34:34,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:34:34,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:34:34,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:34:34,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:34:34,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:34:34,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:34:34,550 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:34:34,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:34:34,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:34:34,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:34:34,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:34:34,939 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:34:34,944 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:34:34,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2021-02-24 04:34:35,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89b33e46/4c594df994254f3cbf449b5ba2fe66c3/FLAG07b812eb8 [2021-02-24 04:34:35,734 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:34:35,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2021-02-24 04:34:35,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89b33e46/4c594df994254f3cbf449b5ba2fe66c3/FLAG07b812eb8 [2021-02-24 04:34:35,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89b33e46/4c594df994254f3cbf449b5ba2fe66c3 [2021-02-24 04:34:35,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:34:36,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:34:36,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:34:36,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:34:36,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:34:36,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:34:35" (1/1) ... [2021-02-24 04:34:36,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d68780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36, skipping insertion in model container [2021-02-24 04:34:36,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:34:35" (1/1) ... [2021-02-24 04:34:36,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:34:36,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:34:36,544 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/Problem02_label32.c[17811,17824] [2021-02-24 04:34:36,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:34:36,600 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:34:36,716 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/Problem02_label32.c[17811,17824] [2021-02-24 04:34:36,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:34:36,767 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:34:36,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36 WrapperNode [2021-02-24 04:34:36,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:34:36,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:34:36,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:34:36,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:34:36,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (1/1) ... [2021-02-24 04:34:36,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (1/1) ... [2021-02-24 04:34:36,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (1/1) ... [2021-02-24 04:34:36,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (1/1) ... [2021-02-24 04:34:36,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (1/1) ... [2021-02-24 04:34:36,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (1/1) ... [2021-02-24 04:34:36,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (1/1) ... [2021-02-24 04:34:36,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:34:36,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:34:36,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:34:36,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:34:36,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (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 04:34:36,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:34:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:34:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:34:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:34:36,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:34:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:34:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:34:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:34:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:34:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:34:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:34:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:34:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:34:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:34:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:34:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:34:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:34:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:34:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:34:38,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:34:38,881 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:34:38,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:34:38 BoogieIcfgContainer [2021-02-24 04:34:38,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:34:38,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:34:38,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:34:38,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:34:38,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:34:35" (1/3) ... [2021-02-24 04:34:38,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107983a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:34:38, skipping insertion in model container [2021-02-24 04:34:38,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:36" (2/3) ... [2021-02-24 04:34:38,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107983a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:34:38, skipping insertion in model container [2021-02-24 04:34:38,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:34:38" (3/3) ... [2021-02-24 04:34:38,894 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label32.c [2021-02-24 04:34:38,902 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:34:38,908 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:34:38,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:34:38,957 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:34:38,957 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:34:38,957 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:34:38,957 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:34:38,957 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:34:38,958 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:34:38,958 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:34:38,958 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:34:38,986 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-24 04:34:39,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-02-24 04:34:39,012 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:34:39,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:34:39,013 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:34:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:34:39,020 INFO L82 PathProgramCache]: Analyzing trace with hash -71069369, now seen corresponding path program 1 times [2021-02-24 04:34:39,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:34:39,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116072767] [2021-02-24 04:34:39,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:34:39,114 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:34:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:34:39,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:39,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:34:39,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:39,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:34:39,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:39,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:34:39,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:39,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:34:39,732 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-24 04:34:39,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:34:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:34:39,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:39,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:34:39,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:39,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:34:39,819 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 04:34:39,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116072767] [2021-02-24 04:34:39,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:34:39,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:34:39,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552156113] [2021-02-24 04:34:39,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:34:39,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:34:39,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:34:39,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:34:39,850 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-24 04:34:40,129 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-24 04:34:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:34:42,517 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-24 04:34:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:34:42,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2021-02-24 04:34:42,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:34:42,540 INFO L225 Difference]: With dead ends: 1215 [2021-02-24 04:34:42,541 INFO L226 Difference]: Without dead ends: 636 [2021-02-24 04:34:42,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:34:42,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-24 04:34:42,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-24 04:34:42,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-24 04:34:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-24 04:34:42,759 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 143 [2021-02-24 04:34:42,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:34:42,760 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-24 04:34:42,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:34:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-24 04:34:42,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-24 04:34:42,768 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:34:42,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:42,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:34:42,769 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:34:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:34:42,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1072071505, now seen corresponding path program 1 times [2021-02-24 04:34:42,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:34:42,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426477956] [2021-02-24 04:34:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:34:42,843 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:34:42,874 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:34:42,885 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:34:42,892 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:34:42,933 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:34:42,951 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:34:42,961 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:34:42,967 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:34:42,977 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:42,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:34:42,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:42,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:34:42,993 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:34:42,997 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:34:43,004 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:34:43,009 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:34:43,017 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:34:43,059 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:34:43,065 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:34:43,074 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:34:43,079 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:34:43,081 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:34:43,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:34:43,097 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:34:43,098 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:34:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:34:43,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:34:43,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:34:43,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:34:43,399 WARN L141 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size [2021-02-24 04:34:43,400 WARN L147 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size 11 [2021-02-24 04:34:43,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:34:43,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:34:43,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:34:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:34:43,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:34:43,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:34:43,652 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 04:34:43,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:34:43,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:34:43,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:34:43,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:34:43,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:34:43,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:34:43,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:34:43,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:34:43,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:34:43,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:34:43,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-24 04:34:43,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:43,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:34:44,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:44,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:34:44,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:44,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-24 04:34:44,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:44,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-02-24 04:34:44,331 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-24 04:34:44,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:44,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-02-24 04:34:44,510 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-24 04:34:44,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:44,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-02-24 04:34:44,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:44,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-24 04:34:44,772 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-02-24 04:34:44,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:44,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-02-24 04:34:45,017 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-02-24 04:34:45,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:45,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-24 04:34:45,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:45,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-02-24 04:34:45,372 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-02-24 04:34:45,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:45,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-02-24 04:34:45,722 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-02-24 04:34:45,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:45,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-02-24 04:34:45,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:45,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-24 04:34:45,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:45,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-24 04:34:45,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:45,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-24 04:34:46,283 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-24 04:34:46,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-24 04:34:46,376 WARN L141 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size [2021-02-24 04:34:46,378 WARN L147 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size 42 [2021-02-24 04:34:46,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:34:46,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:34:46,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:34:46,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:34:46,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:34:46,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:34:46,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:34:46,791 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-24 04:34:46,792 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-24 04:34:46,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:34:46,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:34:46,919 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-24 04:34:46,926 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-24 04:34:46,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:34:46,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:34:46,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:34:47,049 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-24 04:34:47,049 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-24 04:34:47,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426477956] [2021-02-24 04:34:47,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:34:47,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-24 04:34:47,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464350388] [2021-02-24 04:34:47,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-24 04:34:47,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:34:47,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-24 04:34:47,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2021-02-24 04:34:47,057 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 30 states. [2021-02-24 04:34:47,458 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:34:47,689 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-24 04:34:47,901 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:34:48,111 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:34:48,337 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:34:48,568 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:34:48,915 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2021-02-24 04:34:49,350 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-24 04:34:49,509 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-24 04:34:49,676 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-24 04:34:50,090 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-24 04:34:50,706 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2021-02-24 04:34:51,319 WARN L202 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2021-02-24 04:34:51,658 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-24 04:34:52,222 WARN L202 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2021-02-24 04:34:52,885 WARN L202 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-24 04:34:53,316 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-02-24 04:34:54,126 WARN L202 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:34:54,389 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:34:55,223 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:34:55,429 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:34:55,683 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-24 04:34:55,943 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-24 04:34:56,293 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-24 04:34:56,769 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-24 04:34:57,136 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-24 04:34:57,592 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-24 04:34:58,003 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:34:58,643 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:35:04,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:35:04,216 INFO L93 Difference]: Finished difference Result 1721 states and 2175 transitions. [2021-02-24 04:35:04,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-24 04:35:04,217 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 177 [2021-02-24 04:35:04,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:35:04,228 INFO L225 Difference]: With dead ends: 1721 [2021-02-24 04:35:04,229 INFO L226 Difference]: Without dead ends: 1128 [2021-02-24 04:35:04,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1440 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=976, Invalid=3716, Unknown=0, NotChecked=0, Total=4692 [2021-02-24 04:35:04,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2021-02-24 04:35:04,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1053. [2021-02-24 04:35:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2021-02-24 04:35:04,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1327 transitions. [2021-02-24 04:35:04,510 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1327 transitions. Word has length 177 [2021-02-24 04:35:04,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:35:04,511 INFO L480 AbstractCegarLoop]: Abstraction has 1053 states and 1327 transitions. [2021-02-24 04:35:04,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-24 04:35:04,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1327 transitions. [2021-02-24 04:35:04,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-02-24 04:35:04,517 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:04,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:04,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:35:04,520 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:04,521 INFO L82 PathProgramCache]: Analyzing trace with hash 931465068, now seen corresponding path program 1 times [2021-02-24 04:35:04,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:04,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385417979] [2021-02-24 04:35:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:04,546 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,552 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,554 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,559 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,589 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:04,591 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:04,598 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:04,600 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:04,602 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:04,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:04,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:04,610 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,616 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,619 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,626 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,654 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:04,656 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:04,665 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:04,667 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:04,670 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:04,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:04,674 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:04,676 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,680 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,682 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,686 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,712 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:04,714 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:04,716 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:04,718 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:04,719 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:04,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:04,723 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:04,725 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,729 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,731 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:04,735 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:04,765 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:04,768 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:04,770 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:04,771 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:04,773 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:04,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:04,778 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:04,779 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:35:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:04,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:04,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:04,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:04,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:04,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:04,930 WARN L141 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size [2021-02-24 04:35:04,933 WARN L147 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size 12 [2021-02-24 04:35:04,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:35:04,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:04,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:05,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:05,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:05,123 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 04:35:05,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:35:05,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:05,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:35:05,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:35:05,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:05,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:35:05,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:35:05,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:35:05,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:35:05,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:35:05,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:05,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:35:05,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-24 04:35:05,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 04:35:05,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:35:05,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:35:05,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:35:05,715 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-02-24 04:35:05,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-24 04:35:05,889 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-24 04:35:05,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:05,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-02-24 04:35:06,103 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-24 04:35:06,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:06,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-24 04:35:06,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:06,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-02-24 04:35:06,393 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-02-24 04:35:06,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:06,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-02-24 04:35:06,670 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-02-24 04:35:06,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:06,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-24 04:35:06,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:06,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-24 04:35:07,088 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-02-24 04:35:07,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-02-24 04:35:07,458 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-02-24 04:35:07,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-02-24 04:35:07,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-02-24 04:35:07,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-02-24 04:35:07,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-24 04:35:08,096 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-24 04:35:08,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-02-24 04:35:08,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-24 04:35:08,631 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2021-02-24 04:35:08,637 WARN L141 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size [2021-02-24 04:35:08,642 WARN L147 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size 58 [2021-02-24 04:35:08,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:35:08,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:35:08,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:35:08,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:35:09,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:09,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:35:09,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:35:09,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:35:09,210 WARN L141 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size [2021-02-24 04:35:09,211 WARN L147 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size 25 [2021-02-24 04:35:09,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:35:09,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:09,354 WARN L141 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size [2021-02-24 04:35:09,354 WARN L147 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size 1 [2021-02-24 04:35:09,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385417979] [2021-02-24 04:35:09,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:35:09,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-24 04:35:09,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954258394] [2021-02-24 04:35:09,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-24 04:35:09,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:35:09,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-24 04:35:09,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2021-02-24 04:35:09,358 INFO L87 Difference]: Start difference. First operand 1053 states and 1327 transitions. Second operand 31 states. [2021-02-24 04:35:09,746 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:35:09,975 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-24 04:35:10,202 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:35:10,456 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:35:10,699 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:35:10,958 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:35:11,280 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2021-02-24 04:35:11,737 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-24 04:35:11,896 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-24 04:35:12,094 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-24 04:35:12,529 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-24 04:35:13,113 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 134 [2021-02-24 04:35:13,686 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2021-02-24 04:35:14,071 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-02-24 04:35:14,644 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-02-24 04:35:15,314 WARN L202 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2021-02-24 04:35:15,801 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-02-24 04:35:16,628 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:35:17,429 WARN L202 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-24 04:35:17,624 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:35:18,489 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:35:18,721 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:35:18,978 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-24 04:35:19,260 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-24 04:35:19,563 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-24 04:35:19,980 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-02-24 04:35:20,385 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:35:20,909 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-02-24 04:35:21,306 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-02-24 04:35:21,894 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:35:22,468 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:35:26,770 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 101 [2021-02-24 04:35:28,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:35:28,503 INFO L93 Difference]: Finished difference Result 3029 states and 3946 transitions. [2021-02-24 04:35:28,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-24 04:35:28,504 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 178 [2021-02-24 04:35:28,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:35:28,519 INFO L225 Difference]: With dead ends: 3029 [2021-02-24 04:35:28,519 INFO L226 Difference]: Without dead ends: 2006 [2021-02-24 04:35:28,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1554 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=1069, Invalid=4187, Unknown=0, NotChecked=0, Total=5256 [2021-02-24 04:35:28,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2021-02-24 04:35:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1776. [2021-02-24 04:35:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1776 states. [2021-02-24 04:35:29,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2261 transitions. [2021-02-24 04:35:29,047 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2261 transitions. Word has length 178 [2021-02-24 04:35:29,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:35:29,048 INFO L480 AbstractCegarLoop]: Abstraction has 1776 states and 2261 transitions. [2021-02-24 04:35:29,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-24 04:35:29,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2261 transitions. [2021-02-24 04:35:29,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-02-24 04:35:29,056 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:29,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:29,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:35:29,057 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:29,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:29,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1989675646, now seen corresponding path program 1 times [2021-02-24 04:35:29,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:29,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286852844] [2021-02-24 04:35:29,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:29,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:29,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:29,133 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:29,135 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:29,137 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:29,139 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:29,145 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:29,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:29,151 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:29,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:29,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:29,204 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:29,205 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:29,209 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:29,210 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:29,211 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:29,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:29,220 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:29,221 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:35:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:29,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:29,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:29,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:29,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:29,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:29,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:29,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:29,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:29,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:29,597 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 04:35:29,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:35:29,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:29,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:35:29,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:35:29,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:35:29,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:35:29,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:29,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:35:29,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:35:29,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:35:29,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-24 04:35:29,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:35:29,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-24 04:35:29,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:35:30,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-02-24 04:35:30,203 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-02-24 04:35:30,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-02-24 04:35:30,397 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-02-24 04:35:30,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-02-24 04:35:30,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-02-24 04:35:30,600 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-24 04:35:30,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-02-24 04:35:30,900 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-02-24 04:35:30,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-24 04:35:30,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-24 04:35:31,310 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-24 04:35:31,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-02-24 04:35:31,689 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-02-24 04:35:31,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-02-24 04:35:31,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-24 04:35:32,185 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-02-24 04:35:32,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:32,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-02-24 04:35:32,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:32,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-02-24 04:35:32,721 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-24 04:35:32,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:32,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-24 04:35:32,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:32,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-02-24 04:35:33,317 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2021-02-24 04:35:33,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-24 04:35:33,880 WARN L202 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-24 04:35:33,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-02-24 04:35:33,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-02-24 04:35:34,473 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-24 04:35:34,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:34,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-02-24 04:35:34,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:34,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 346 [2021-02-24 04:35:34,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:34,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-02-24 04:35:35,244 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-24 04:35:35,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:35,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-24 04:35:35,841 WARN L202 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2021-02-24 04:35:35,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:35,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-02-24 04:35:35,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:35,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-24 04:35:36,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:36,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-24 04:35:36,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:36,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-24 04:35:36,790 WARN L202 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-02-24 04:35:36,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:36,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-02-24 04:35:37,444 WARN L202 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2021-02-24 04:35:37,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:37,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-02-24 04:35:38,145 WARN L202 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2021-02-24 04:35:38,150 WARN L141 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size [2021-02-24 04:35:38,151 WARN L147 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size 42 [2021-02-24 04:35:38,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:38,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:38,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:38,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:38,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:38,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:38,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:38,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:38,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:38,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:35:38,588 WARN L141 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size [2021-02-24 04:35:38,589 WARN L147 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size 26 [2021-02-24 04:35:38,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:38,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:38,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:38,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:38,756 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-24 04:35:38,757 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-24 04:35:38,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286852844] [2021-02-24 04:35:38,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:35:38,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-02-24 04:35:38,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238581589] [2021-02-24 04:35:38,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-24 04:35:38,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:35:38,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-24 04:35:38,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 04:35:38,761 INFO L87 Difference]: Start difference. First operand 1776 states and 2261 transitions. Second operand 36 states. [2021-02-24 04:35:39,203 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:35:39,440 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-02-24 04:35:39,620 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:35:39,866 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:35:40,120 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:35:40,372 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-02-24 04:35:40,712 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2021-02-24 04:35:41,165 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2021-02-24 04:35:41,320 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-02-24 04:35:41,506 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-02-24 04:35:41,949 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-02-24 04:35:42,585 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2021-02-24 04:35:43,192 WARN L202 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 135 [2021-02-24 04:35:43,560 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-24 04:35:44,114 WARN L202 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2021-02-24 04:35:44,804 WARN L202 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-24 04:35:45,447 WARN L202 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-02-24 04:35:46,269 WARN L202 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:35:47,100 WARN L202 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-24 04:35:47,902 WARN L202 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-24 04:35:48,852 WARN L202 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-24 04:35:49,719 WARN L202 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2021-02-24 04:35:50,670 WARN L202 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2021-02-24 04:35:51,600 WARN L202 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 148 [2021-02-24 04:35:52,588 WARN L202 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2021-02-24 04:35:52,790 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:35:53,895 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:35:54,097 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:35:54,344 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-24 04:35:54,600 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-24 04:35:54,896 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-24 04:35:55,336 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-24 04:35:55,724 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-24 04:35:56,292 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:35:56,730 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-24 04:35:57,268 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 101 [2021-02-24 04:35:57,649 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:35:58,285 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:35:58,976 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:35:59,550 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:36:00,267 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:36:01,027 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:36:01,589 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:36:02,434 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:36:03,051 WARN L202 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:36:03,661 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:36:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:36:07,453 INFO L93 Difference]: Finished difference Result 4540 states and 5979 transitions. [2021-02-24 04:36:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-02-24 04:36:07,453 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 188 [2021-02-24 04:36:07,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:36:07,473 INFO L225 Difference]: With dead ends: 4540 [2021-02-24 04:36:07,473 INFO L226 Difference]: Without dead ends: 2794 [2021-02-24 04:36:07,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 11 SyntacticMatches, 11 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2437 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=1827, Invalid=6363, Unknown=0, NotChecked=0, Total=8190 [2021-02-24 04:36:07,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2021-02-24 04:36:08,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2523. [2021-02-24 04:36:08,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2523 states. [2021-02-24 04:36:08,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3296 transitions. [2021-02-24 04:36:08,220 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3296 transitions. Word has length 188 [2021-02-24 04:36:08,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:36:08,221 INFO L480 AbstractCegarLoop]: Abstraction has 2523 states and 3296 transitions. [2021-02-24 04:36:08,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-24 04:36:08,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3296 transitions. [2021-02-24 04:36:08,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-24 04:36:08,236 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:36:08,236 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:08,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:36:08,236 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:36:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:36:08,237 INFO L82 PathProgramCache]: Analyzing trace with hash -984837808, now seen corresponding path program 1 times [2021-02-24 04:36:08,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:36:08,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585953545] [2021-02-24 04:36:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:36:08,280 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2021-02-24 04:37:17,469 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 1722944 conjuctions. This might take some time...