/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_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:05:06,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:05:06,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:05:06,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:05:06,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:05:06,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:05:06,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:05:06,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:05:06,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:05:06,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:05:06,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:05:06,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:05:06,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:05:06,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:05:06,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:05:06,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:05:06,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:05:06,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:05:06,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:05:06,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:05:06,858 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 02:05:06,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:05:06,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:05:06,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:05:06,885 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:05:06,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:05:06,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:05:06,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:05:06,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:05:06,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:05:06,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:05:06,887 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:05:06,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:05:06,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:05:06,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:05:06,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:05:06,889 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:05:06,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:05:06,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:05:06,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:05:06,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:05:06,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:05:06,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:05:06,890 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:05:06,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:05:07,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:05:07,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:05:07,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:05:07,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:05:07,290 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:05:07,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2021-02-22 02:05:07,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c61edf5/76409cef40734b248382fb6f76708b08/FLAG058d7f3f1 [2021-02-22 02:05:08,169 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:05:08,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2021-02-22 02:05:08,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c61edf5/76409cef40734b248382fb6f76708b08/FLAG058d7f3f1 [2021-02-22 02:05:08,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c61edf5/76409cef40734b248382fb6f76708b08 [2021-02-22 02:05:08,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:05:08,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:05:08,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:05:08,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:05:08,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:05:08,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:08,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742e462c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08, skipping insertion in model container [2021-02-22 02:05:08,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:08,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:05:08,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:05:08,797 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_label58.c[17861,17874] [2021-02-22 02:05:08,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:05:08,866 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:05:08,941 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_label58.c[17861,17874] [2021-02-22 02:05:08,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:05:08,972 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:05:08,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08 WrapperNode [2021-02-22 02:05:08,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:05:08,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:05:08,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:05:08,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:05:08,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:08,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:09,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:09,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:09,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:09,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:09,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (1/1) ... [2021-02-22 02:05:09,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:05:09,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:05:09,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:05:09,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:05:09,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (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 02:05:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:05:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:05:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:05:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:05:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:05:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:05:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:05:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:05:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:05:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:05:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:05:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:05:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:05:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:05:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:05:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:05:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:05:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:05:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:05:10,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:05:10,638 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:05:10,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:05:10 BoogieIcfgContainer [2021-02-22 02:05:10,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:05:10,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:05:10,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:05:10,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:05:10,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:05:08" (1/3) ... [2021-02-22 02:05:10,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b67110f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:05:10, skipping insertion in model container [2021-02-22 02:05:10,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:08" (2/3) ... [2021-02-22 02:05:10,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b67110f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:05:10, skipping insertion in model container [2021-02-22 02:05:10,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:05:10" (3/3) ... [2021-02-22 02:05:10,650 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label58.c [2021-02-22 02:05:10,657 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:05:10,662 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:05:10,681 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:05:10,705 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:05:10,705 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:05:10,705 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:05:10,705 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:05:10,705 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:05:10,706 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:05:10,706 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:05:10,706 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:05:10,748 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-22 02:05:10,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-02-22 02:05:10,783 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:05:10,790 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] [2021-02-22 02:05:10,790 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:05:10,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:05:10,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1941717349, now seen corresponding path program 1 times [2021-02-22 02:05:10,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:05:10,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943463320] [2021-02-22 02:05:10,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:05:10,909 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:05:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:11,426 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-22 02:05:11,427 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-22 02:05:11,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:11,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:05:11,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:11,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:05:11,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:11,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:05:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:11,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:11,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:11,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:11,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:11,641 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 02:05:11,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943463320] [2021-02-22 02:05:11,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:05:11,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:05:11,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818078593] [2021-02-22 02:05:11,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:05:11,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:05:11,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:05:11,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:05:11,667 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 5 states. [2021-02-22 02:05:14,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:05:14,227 INFO L93 Difference]: Finished difference Result 1279 states and 1678 transitions. [2021-02-22 02:05:14,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:05:14,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2021-02-22 02:05:14,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:05:14,254 INFO L225 Difference]: With dead ends: 1279 [2021-02-22 02:05:14,255 INFO L226 Difference]: Without dead ends: 704 [2021-02-22 02:05:14,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:05:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-02-22 02:05:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 611. [2021-02-22 02:05:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-02-22 02:05:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 739 transitions. [2021-02-22 02:05:14,573 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 739 transitions. Word has length 135 [2021-02-22 02:05:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:05:14,575 INFO L480 AbstractCegarLoop]: Abstraction has 611 states and 739 transitions. [2021-02-22 02:05:14,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:05:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 739 transitions. [2021-02-22 02:05:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-22 02:05:14,581 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:05:14,582 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] [2021-02-22 02:05:14,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:05:14,582 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:05:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:05:14,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1648953155, now seen corresponding path program 1 times [2021-02-22 02:05:14,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:05:14,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922098670] [2021-02-22 02:05:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:05:14,630 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,650 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,658 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,664 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,700 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:14,715 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:14,721 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:14,726 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:14,731 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:14,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:14,740 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:14,743 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,749 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,752 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,758 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,792 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:14,795 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:14,799 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:14,800 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:14,802 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:14,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:14,808 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:14,810 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,816 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,819 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,825 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,861 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:14,864 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:14,867 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:14,869 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:14,871 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:14,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:14,877 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:14,880 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,885 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,888 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,894 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,929 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:14,931 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:14,935 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:14,937 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:14,938 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:14,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:14,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:14,944 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:14,947 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,952 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,955 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:14,960 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:14,996 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:14,998 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:15,001 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:15,003 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:15,005 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:15,010 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:15,013 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,018 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,021 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,026 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,061 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:15,063 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:15,066 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:15,067 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:15,068 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:15,074 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:15,076 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,081 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,083 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,088 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,121 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:15,123 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:15,126 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:15,128 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:15,129 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:15,134 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:15,136 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,141 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,143 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,148 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,193 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:15,195 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:15,198 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:15,200 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:15,201 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:15,207 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:15,209 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,213 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,216 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,220 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,253 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:15,255 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:15,258 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:15,260 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:15,261 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:15,266 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:15,268 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,272 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,275 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-22 02:05:15,279 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-22 02:05:15,313 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:05:15,314 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:05:15,318 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-22 02:05:15,319 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:15,320 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:05:15,325 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-22 02:05:15,326 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:05:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:15,609 WARN L141 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size [2021-02-22 02:05:15,610 WARN L147 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size 4 [2021-02-22 02:05:15,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:05:15,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:05:15,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:05:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:15,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:15,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:15,894 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 02:05:15,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:15,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:05:15,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:05:15,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:05:15,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:05:15,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:05:15,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:05:15,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:05:15,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:05:15,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:05:15,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:05:15,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:05:15,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:15,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:15,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:05:15,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:05:16,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:16,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:16,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:05:16,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:16,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:16,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:05:16,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:16,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:16,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:05:16,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:16,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:16,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-02-22 02:05:16,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:16,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:16,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:16,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-02-22 02:05:18,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:18,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:18,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:18,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:18,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-02-22 02:05:19,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:19,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:19,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:19,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:19,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-22 02:05:19,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:19,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:19,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:19,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:19,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-22 02:05:20,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:20,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:20,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:20,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:20,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:05:21,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:21,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:21,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:21,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:05:21,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-22 02:05:22,329 WARN L141 QuantifierPusher]: treesize reduction 59, result has 61.2 percent of original size [2021-02-22 02:05:22,331 WARN L147 QuantifierPusher]: treesize reduction 59, result has 61.2 percent of original size 93 [2021-02-22 02:05:22,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-22 02:05:22,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-22 02:05:22,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:22,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:05:22,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:05:22,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:05:22,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:05:22,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:22,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:05:22,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:05:22,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:05:22,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:05:22,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:05:22,956 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-02-22 02:05:22,957 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size 28 [2021-02-22 02:05:22,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:22,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:05:25,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:25,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:05:28,021 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-22 02:05:28,022 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-22 02:05:28,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922098670] [2021-02-22 02:05:28,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:05:28,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-22 02:05:28,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192576334] [2021-02-22 02:05:28,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-22 02:05:28,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:05:28,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-22 02:05:28,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=543, Unknown=12, NotChecked=0, Total=650 [2021-02-22 02:05:28,025 INFO L87 Difference]: Start difference. First operand 611 states and 739 transitions. Second operand 25 states. [2021-02-22 02:05:28,520 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 97 [2021-02-22 02:05:28,830 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 99 [2021-02-22 02:05:29,084 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 97 [2021-02-22 02:05:29,354 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 103 [2021-02-22 02:05:29,642 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 103 [2021-02-22 02:05:29,939 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-02-22 02:05:30,296 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 123 [2021-02-22 02:05:30,496 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:05:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:05:45,638 INFO L93 Difference]: Finished difference Result 1064 states and 1266 transitions. [2021-02-22 02:05:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-22 02:05:45,639 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 157 [2021-02-22 02:05:45,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:05:45,651 INFO L225 Difference]: With dead ends: 1064 [2021-02-22 02:05:45,651 INFO L226 Difference]: Without dead ends: 1062 [2021-02-22 02:05:45,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=277, Invalid=1433, Unknown=12, NotChecked=0, Total=1722 [2021-02-22 02:05:45,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2021-02-22 02:05:45,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 971. [2021-02-22 02:05:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 971 states. [2021-02-22 02:05:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1167 transitions. [2021-02-22 02:05:45,912 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1167 transitions. Word has length 157 [2021-02-22 02:05:45,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:05:45,913 INFO L480 AbstractCegarLoop]: Abstraction has 971 states and 1167 transitions. [2021-02-22 02:05:45,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-22 02:05:45,913 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1167 transitions. [2021-02-22 02:05:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-02-22 02:05:45,918 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:05:45,918 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-22 02:05:45,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-22 02:05:45,919 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:05:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:05:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1361511777, now seen corresponding path program 1 times [2021-02-22 02:05:45,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:05:45,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960044139] [2021-02-22 02:05:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:05:45,951 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11