/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:03:08,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:03:08,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:03:08,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:03:09,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:03:09,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:03:09,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:03:09,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:03:09,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:03:09,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:03:09,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:03:09,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:03:09,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:03:09,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:03:09,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:03:09,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:03:09,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:03:09,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:03:09,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:03:09,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:03:09,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:03:09,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:03:09,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:03:09,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:03:09,111 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:03:09,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:03:09,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:03:09,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:03:09,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:03:09,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:03:09,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:03:09,114 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:03:09,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:03:09,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:03:09,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:03:09,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:03:09,116 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:03:09,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:03:09,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:03:09,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:03:09,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:03:09,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:03:09,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:03:09,118 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:03:09,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:03:09,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:03:09,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:03:09,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:03:09,583 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:03:09,584 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:03:09,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2021-02-22 02:03:09,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1162d940c/52ac78b1765247c486083cf48325b4ad/FLAGb68126be0 [2021-02-22 02:03:10,404 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:03:10,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2021-02-22 02:03:10,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1162d940c/52ac78b1765247c486083cf48325b4ad/FLAGb68126be0 [2021-02-22 02:03:10,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1162d940c/52ac78b1765247c486083cf48325b4ad [2021-02-22 02:03:10,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:03:10,474 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:03:10,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:03:10,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:03:10,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:03:10,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:03:10" (1/1) ... [2021-02-22 02:03:10,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea3b298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:10, skipping insertion in model container [2021-02-22 02:03:10,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:03:10" (1/1) ... [2021-02-22 02:03:10,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:03:10,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:03:11,015 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c[21463,21476] [2021-02-22 02:03:11,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:03:11,044 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:03:11,137 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c[21463,21476] [2021-02-22 02:03:11,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:03:11,163 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:03:11,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11 WrapperNode [2021-02-22 02:03:11,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:03:11,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:03:11,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:03:11,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:03:11,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (1/1) ... [2021-02-22 02:03:11,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (1/1) ... [2021-02-22 02:03:11,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (1/1) ... [2021-02-22 02:03:11,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (1/1) ... [2021-02-22 02:03:11,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (1/1) ... [2021-02-22 02:03:11,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (1/1) ... [2021-02-22 02:03:11,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (1/1) ... [2021-02-22 02:03:11,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:03:11,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:03:11,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:03:11,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:03:11,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (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 [2021-02-22 02:03:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:03:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:03:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:03:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:03:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:03:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:03:11,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:03:11,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:03:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:03:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:03:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:03:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:03:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:03:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:03:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:03:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:03:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:03:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:03:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:03:12,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:03:12,930 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:03:12,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:03:12 BoogieIcfgContainer [2021-02-22 02:03:12,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:03:12,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:03:12,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:03:12,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:03:12,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:03:10" (1/3) ... [2021-02-22 02:03:12,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62320fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:03:12, skipping insertion in model container [2021-02-22 02:03:12,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:11" (2/3) ... [2021-02-22 02:03:12,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62320fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:03:12, skipping insertion in model container [2021-02-22 02:03:12,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:03:12" (3/3) ... [2021-02-22 02:03:12,949 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2021-02-22 02:03:12,958 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:03:12,965 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:03:12,989 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:03:13,031 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:03:13,031 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:03:13,031 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:03:13,031 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:03:13,032 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:03:13,032 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:03:13,032 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:03:13,032 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:03:13,075 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-22 02:03:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-02-22 02:03:13,125 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:03:13,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:03:13,126 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:03:13,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:03:13,132 INFO L82 PathProgramCache]: Analyzing trace with hash 457141502, now seen corresponding path program 1 times [2021-02-22 02:03:13,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:03:13,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028492042] [2021-02-22 02:03:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:03:13,226 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:03:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:13,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:13,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:13,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:13,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:13,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:13,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:13,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:13,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:13,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:03:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:13,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:13,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:13,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:13,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:03:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:03:13,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028492042] [2021-02-22 02:03:13,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:03:13,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:03:13,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992110881] [2021-02-22 02:03:13,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:03:13,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:03:14,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:03:14,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:03:14,017 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 4 states. [2021-02-22 02:03:16,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:03:16,749 INFO L93 Difference]: Finished difference Result 1244 states and 1642 transitions. [2021-02-22 02:03:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:03:16,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2021-02-22 02:03:16,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:03:16,780 INFO L225 Difference]: With dead ends: 1244 [2021-02-22 02:03:16,781 INFO L226 Difference]: Without dead ends: 669 [2021-02-22 02:03:16,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:03:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2021-02-22 02:03:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 613. [2021-02-22 02:03:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2021-02-22 02:03:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 723 transitions. [2021-02-22 02:03:17,057 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 723 transitions. Word has length 164 [2021-02-22 02:03:17,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:03:17,059 INFO L480 AbstractCegarLoop]: Abstraction has 613 states and 723 transitions. [2021-02-22 02:03:17,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:03:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 723 transitions. [2021-02-22 02:03:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-22 02:03:17,065 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:03:17,065 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:03:17,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:03:17,066 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:03:17,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:03:17,067 INFO L82 PathProgramCache]: Analyzing trace with hash -140485940, now seen corresponding path program 1 times [2021-02-22 02:03:17,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:03:17,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953152015] [2021-02-22 02:03:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:03:17,123 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,154 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,163 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,169 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,209 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:17,222 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:17,229 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:03:17,234 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:17,241 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:17,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:17,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:03:17,255 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,261 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,264 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,270 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,305 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:17,308 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:17,313 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:03:17,314 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:17,316 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:17,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:17,323 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:03:17,326 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,331 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,335 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,340 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,375 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:17,378 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:17,381 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:03:17,383 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:17,385 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:17,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:17,392 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:03:17,395 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,400 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,403 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:17,408 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:17,442 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:17,445 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:17,449 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:03:17,451 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:17,453 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:17,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:17,461 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:03:17,462 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:03:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:17,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:17,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:17,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:17,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:17,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:17,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:17,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:17,722 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-02-22 02:03:17,723 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-02-22 02:03:17,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:17,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:03:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:17,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:17,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:03:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:03:17,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:03:17,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:17,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:17,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:17,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:03:18,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:03:18,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-02-22 02:03:18,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-02-22 02:03:18,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-22 02:03:18,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-22 02:03:18,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-22 02:03:18,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-02-22 02:03:18,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-02-22 02:03:18,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-02-22 02:03:18,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-02-22 02:03:18,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:18,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:18,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-02-22 02:03:18,612 WARN L141 QuantifierPusher]: treesize reduction 41, result has 66.7 percent of original size [2021-02-22 02:03:18,615 WARN L147 QuantifierPusher]: treesize reduction 41, result has 66.7 percent of original size 82 [2021-02-22 02:03:18,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:03:18,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:03:18,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:03:18,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:03:18,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:03:18,877 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-02-22 02:03:18,879 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size 29 [2021-02-22 02:03:18,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:03:18,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:18,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:03:18,994 WARN L141 QuantifierPusher]: treesize reduction 46, result has 2.1 percent of original size [2021-02-22 02:03:18,994 WARN L147 QuantifierPusher]: treesize reduction 46, result has 2.1 percent of original size 1 [2021-02-22 02:03:18,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953152015] [2021-02-22 02:03:18,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:03:18,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-22 02:03:18,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597350371] [2021-02-22 02:03:18,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-22 02:03:18,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:03:18,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-22 02:03:18,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2021-02-22 02:03:18,998 INFO L87 Difference]: Start difference. First operand 613 states and 723 transitions. Second operand 20 states. [2021-02-22 02:03:19,452 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 97 [2021-02-22 02:03:19,710 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 99 [2021-02-22 02:03:19,924 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 97 [2021-02-22 02:03:20,168 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 103 [2021-02-22 02:03:20,414 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 103 [2021-02-22 02:03:20,694 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 105 [2021-02-22 02:03:20,861 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:03:22,554 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 144 [2021-02-22 02:03:22,996 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 146 [2021-02-22 02:03:24,104 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-22 02:03:29,007 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 109 [2021-02-22 02:03:32,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:03:32,525 INFO L93 Difference]: Finished difference Result 2008 states and 2532 transitions. [2021-02-22 02:03:32,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-02-22 02:03:32,526 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 181 [2021-02-22 02:03:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:03:32,541 INFO L225 Difference]: With dead ends: 2008 [2021-02-22 02:03:32,541 INFO L226 Difference]: Without dead ends: 1427 [2021-02-22 02:03:32,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=441, Invalid=1721, Unknown=0, NotChecked=0, Total=2162 [2021-02-22 02:03:32,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2021-02-22 02:03:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1181. [2021-02-22 02:03:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2021-02-22 02:03:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1482 transitions. [2021-02-22 02:03:32,888 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1482 transitions. Word has length 181 [2021-02-22 02:03:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:03:32,889 INFO L480 AbstractCegarLoop]: Abstraction has 1181 states and 1482 transitions. [2021-02-22 02:03:32,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-22 02:03:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1482 transitions. [2021-02-22 02:03:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-22 02:03:32,897 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:03:32,898 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:03:32,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:03:32,898 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:03:32,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:03:32,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1626326358, now seen corresponding path program 1 times [2021-02-22 02:03:32,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:03:32,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101957204] [2021-02-22 02:03:32,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:03:32,922 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:32,928 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:32,931 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:32,936 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:32,971 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:32,975 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:32,978 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:32,980 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:32,982 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:32,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:32,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:32,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:32,988 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:32,990 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:32,996 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:32,999 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,006 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,041 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,044 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,047 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,048 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,052 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,060 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,062 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,067 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,070 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,075 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,109 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,111 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,114 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,115 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,117 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,124 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,127 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,132 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,135 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,142 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,176 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,178 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,181 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,183 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,186 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,195 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,197 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,202 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,204 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,208 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,239 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,241 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,244 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,245 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,246 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,251 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,253 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,257 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,260 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,264 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,295 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,297 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,300 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,301 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,302 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,306 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,308 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,313 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,315 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,319 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,350 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,352 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,355 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,356 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,357 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,363 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,365 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,369 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,371 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,376 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,407 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,409 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,412 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,413 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,414 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,419 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,421 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,426 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,428 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,432 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,466 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,468 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,470 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,472 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,473 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,477 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,479 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,483 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,487 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:03:33,491 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:03:33,523 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:33,526 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:33,528 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-22 02:03:33,529 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:33,531 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:33,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:33,536 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-22 02:03:33,537 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:03:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:33,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:33,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:33,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:33,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:33,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:33,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:03:33,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:33,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:03:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:33,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:33,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:33,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:03:34,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:03:34,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:34,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:34,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-22 02:03:34,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-22 02:03:34,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:34,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-22 02:03:34,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-22 02:03:34,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:34,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-22 02:03:34,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:03:34,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:34,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-22 02:03:34,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:03:34,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:34,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-22 02:03:34,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:03:34,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:34,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-22 02:03:34,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:03:34,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:03:34,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:03:34,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:03:34,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:34,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-22 02:03:34,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:03:34,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-02-22 02:03:34,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:03:34,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 02:03:34,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-02-22 02:03:34,755 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-02-22 02:03:34,777 WARN L141 QuantifierPusher]: treesize reduction 59, result has 52.8 percent of original size [2021-02-22 02:03:34,779 WARN L147 QuantifierPusher]: treesize reduction 59, result has 52.8 percent of original size 66 [2021-02-22 02:03:34,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:03:34,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:03:34,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:03:34,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:34,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:03:35,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:03:35,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:35,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:03:35,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:03:35,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:03:35,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:03:35,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:03:35,276 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-02-22 02:03:35,277 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size 28 [2021-02-22 02:03:35,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:03:35,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:35,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:03:35,403 WARN L141 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size [2021-02-22 02:03:35,404 WARN L147 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size 1 [2021-02-22 02:03:35,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101957204] [2021-02-22 02:03:35,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:03:35,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-22 02:03:35,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148061870] [2021-02-22 02:03:35,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-22 02:03:35,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:03:35,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-22 02:03:35,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2021-02-22 02:03:35,410 INFO L87 Difference]: Start difference. First operand 1181 states and 1482 transitions. Second operand 25 states. [2021-02-22 02:03:35,942 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-22 02:03:36,174 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2021-02-22 02:03:36,417 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-22 02:03:36,663 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2021-02-22 02:03:36,919 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2021-02-22 02:03:37,185 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-02-22 02:03:37,534 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2021-02-22 02:03:37,740 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-02-22 02:03:39,274 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-02-22 02:03:39,479 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-02-22 02:03:39,646 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-22 02:03:39,856 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-22 02:03:46,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:03:46,141 INFO L93 Difference]: Finished difference Result 3221 states and 4132 transitions. [2021-02-22 02:03:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-22 02:03:46,141 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 186 [2021-02-22 02:03:46,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:03:46,158 INFO L225 Difference]: With dead ends: 3221 [2021-02-22 02:03:46,158 INFO L226 Difference]: Without dead ends: 2072 [2021-02-22 02:03:46,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=363, Invalid=1707, Unknown=0, NotChecked=0, Total=2070 [2021-02-22 02:03:46,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2021-02-22 02:03:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1692. [2021-02-22 02:03:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1692 states. [2021-02-22 02:03:46,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2101 transitions. [2021-02-22 02:03:46,612 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2101 transitions. Word has length 186 [2021-02-22 02:03:46,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:03:46,613 INFO L480 AbstractCegarLoop]: Abstraction has 1692 states and 2101 transitions. [2021-02-22 02:03:46,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-22 02:03:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2101 transitions. [2021-02-22 02:03:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-02-22 02:03:46,622 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:03:46,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:03:46,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-22 02:03:46,623 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:03:46,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:03:46,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1488908224, now seen corresponding path program 1 times [2021-02-22 02:03:46,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:03:46,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63551439] [2021-02-22 02:03:46,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:03:46,652 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-02-22 02:03:49,752 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 175200 conjuctions. This might take some time...