/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:18:40,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:18:40,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:18:40,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:18:40,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:18:40,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:18:40,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:18:40,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:18:40,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:18:40,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:18:40,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:18:40,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:18:40,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:18:40,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:18:40,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:18:40,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:18:40,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:18:40,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:18:40,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:18:40,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:18:40,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:18:40,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:18:40,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:18:40,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:18:40,305 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:18:40,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:18:40,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:18:40,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:18:40,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:18:40,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:18:40,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:18:40,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:18:40,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:18:40,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:18:40,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:18:40,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:18:40,308 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:18:40,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:18:40,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:18:40,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:18:40,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:18:40,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:18:40,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:18:40,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:18:40,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:18:40,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:18:40,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:18:40,738 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:18:40,739 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:18:40,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2021-02-23 18:18:40,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2ef1dca/ff4c7fbe498f4ca0987bd46cf4b6daf8/FLAG70825e3d2 [2021-02-23 18:18:41,606 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:18:41,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2021-02-23 18:18:41,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2ef1dca/ff4c7fbe498f4ca0987bd46cf4b6daf8/FLAG70825e3d2 [2021-02-23 18:18:41,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2ef1dca/ff4c7fbe498f4ca0987bd46cf4b6daf8 [2021-02-23 18:18:41,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:18:41,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:18:41,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:18:41,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:18:41,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:18:41,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:18:41" (1/1) ... [2021-02-23 18:18:41,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ec6ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:41, skipping insertion in model container [2021-02-23 18:18:41,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:18:41" (1/1) ... [2021-02-23 18:18:41,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:18:41,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:18:42,259 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label12.c[18829,18842] [2021-02-23 18:18:42,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:18:42,323 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:18:42,470 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label12.c[18829,18842] [2021-02-23 18:18:42,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:18:42,552 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:18:42,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42 WrapperNode [2021-02-23 18:18:42,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:18:42,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:18:42,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:18:42,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:18:42,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (1/1) ... [2021-02-23 18:18:42,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (1/1) ... [2021-02-23 18:18:42,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (1/1) ... [2021-02-23 18:18:42,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (1/1) ... [2021-02-23 18:18:42,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (1/1) ... [2021-02-23 18:18:42,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (1/1) ... [2021-02-23 18:18:42,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (1/1) ... [2021-02-23 18:18:42,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:18:42,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:18:42,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:18:42,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:18:42,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (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 [2021-02-23 18:18:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:18:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:18:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:18:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 18:18:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:18:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 18:18:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:18:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:18:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:18:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:18:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:18:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 18:18:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:18:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:18:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:18:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:18:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:18:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:18:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:18:44,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:18:44,491 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:18:44,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:18:44 BoogieIcfgContainer [2021-02-23 18:18:44,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:18:44,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:18:44,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:18:44,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:18:44,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:18:41" (1/3) ... [2021-02-23 18:18:44,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a39a0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:18:44, skipping insertion in model container [2021-02-23 18:18:44,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:18:42" (2/3) ... [2021-02-23 18:18:44,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a39a0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:18:44, skipping insertion in model container [2021-02-23 18:18:44,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:18:44" (3/3) ... [2021-02-23 18:18:44,503 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label12.c [2021-02-23 18:18:44,510 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:18:44,517 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:18:44,539 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:18:44,567 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:18:44,567 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:18:44,567 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:18:44,568 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:18:44,568 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:18:44,568 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:18:44,568 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:18:44,568 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:18:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-23 18:18:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-02-23 18:18:44,623 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:18:44,624 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] [2021-02-23 18:18:44,625 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:18:44,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:18:44,632 INFO L82 PathProgramCache]: Analyzing trace with hash 280204825, now seen corresponding path program 1 times [2021-02-23 18:18:44,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:18:44,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297300979] [2021-02-23 18:18:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:18:44,733 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:18:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:18:45,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:45,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:18:45,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:45,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:18:45,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:45,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:18:45,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:45,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:18:45,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:18:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:18:45,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:45,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:18:45,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:45,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:18:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:18:45,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297300979] [2021-02-23 18:18:45,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:18:45,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:18:45,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137548034] [2021-02-23 18:18:45,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:18:45,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:18:45,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:18:45,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:18:45,555 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-23 18:18:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:18:48,283 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-23 18:18:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 18:18:48,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2021-02-23 18:18:48,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:18:48,307 INFO L225 Difference]: With dead ends: 1215 [2021-02-23 18:18:48,308 INFO L226 Difference]: Without dead ends: 636 [2021-02-23 18:18:48,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:18:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-23 18:18:48,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-23 18:18:48,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-23 18:18:48,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-23 18:18:48,593 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 152 [2021-02-23 18:18:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:18:48,594 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-23 18:18:48,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:18:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-23 18:18:48,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-23 18:18:48,602 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:18:48,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:18:48,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:18:48,603 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:18:48,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:18:48,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1251954511, now seen corresponding path program 1 times [2021-02-23 18:18:48,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:18:48,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983477497] [2021-02-23 18:18:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:18:48,883 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size [2021-02-23 18:18:48,912 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size 173 [2021-02-23 18:18:49,017 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size [2021-02-23 18:18:49,023 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size 173 [2021-02-23 18:18:49,025 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:18:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:18:49,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:18:49,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:18:49,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:18:49,320 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 18:18:49,321 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 18:18:49,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:18:49,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:18:49,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:18:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:18:49,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:18:49,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:18:49,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:18:49,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:18:49,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-23 18:18:49,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:18:49,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-02-23 18:18:49,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 18:18:49,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:18:49,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:18:49,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:18:49,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:18:49,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 18:18:49,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-23 18:18:49,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-23 18:18:49,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:18:49,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:49,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-23 18:18:49,847 WARN L141 QuantifierPusher]: treesize reduction 17, result has 73.4 percent of original size [2021-02-23 18:18:49,848 WARN L147 QuantifierPusher]: treesize reduction 17, result has 73.4 percent of original size 47 [2021-02-23 18:18:49,893 WARN L141 QuantifierPusher]: treesize reduction 6, result has 91.9 percent of original size [2021-02-23 18:18:49,895 WARN L147 QuantifierPusher]: treesize reduction 6, result has 91.9 percent of original size 68 [2021-02-23 18:18:49,957 WARN L141 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-02-23 18:18:49,959 WARN L147 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size 68 [2021-02-23 18:18:49,962 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.6 percent of original size [2021-02-23 18:18:49,964 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.6 percent of original size 88 [2021-02-23 18:18:50,042 WARN L141 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size [2021-02-23 18:18:50,045 WARN L147 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 109 [2021-02-23 18:18:50,140 WARN L141 QuantifierPusher]: treesize reduction 6, result has 95.6 percent of original size [2021-02-23 18:18:50,143 WARN L147 QuantifierPusher]: treesize reduction 6, result has 95.6 percent of original size 130 [2021-02-23 18:18:50,249 WARN L141 QuantifierPusher]: treesize reduction 26, result has 85.2 percent of original size [2021-02-23 18:18:50,253 WARN L147 QuantifierPusher]: treesize reduction 26, result has 85.2 percent of original size 150 [2021-02-23 18:18:50,457 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-02-23 18:18:50,461 WARN L141 QuantifierPusher]: treesize reduction 48, result has 72.4 percent of original size [2021-02-23 18:18:50,463 WARN L147 QuantifierPusher]: treesize reduction 48, result has 72.4 percent of original size 126 [2021-02-23 18:18:50,466 WARN L141 QuantifierPusher]: treesize reduction 17, result has 89.6 percent of original size [2021-02-23 18:18:50,468 WARN L147 QuantifierPusher]: treesize reduction 17, result has 89.6 percent of original size 147 [2021-02-23 18:18:50,589 WARN L141 QuantifierPusher]: treesize reduction 17, result has 90.8 percent of original size [2021-02-23 18:18:50,592 WARN L147 QuantifierPusher]: treesize reduction 17, result has 90.8 percent of original size 167 [2021-02-23 18:18:50,756 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-23 18:18:50,768 WARN L141 QuantifierPusher]: treesize reduction 27, result has 86.1 percent of original size [2021-02-23 18:18:50,775 WARN L147 QuantifierPusher]: treesize reduction 27, result has 86.1 percent of original size 167 [2021-02-23 18:18:50,786 WARN L141 QuantifierPusher]: treesize reduction 26, result has 87.8 percent of original size [2021-02-23 18:18:50,793 WARN L147 QuantifierPusher]: treesize reduction 26, result has 87.8 percent of original size 187 [2021-02-23 18:18:50,972 WARN L141 QuantifierPusher]: treesize reduction 28, result has 87.0 percent of original size [2021-02-23 18:18:50,976 WARN L147 QuantifierPusher]: treesize reduction 28, result has 87.0 percent of original size 187 [2021-02-23 18:18:50,981 WARN L141 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-02-23 18:18:50,984 WARN L147 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size 207 [2021-02-23 18:18:51,148 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-02-23 18:18:51,158 WARN L141 QuantifierPusher]: treesize reduction 228, result has 0.4 percent of original size [2021-02-23 18:18:51,159 WARN L147 QuantifierPusher]: treesize reduction 228, result has 0.4 percent of original size 1 [2021-02-23 18:18:51,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:51,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:18:51,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:18:51,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:18:51,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983477497] [2021-02-23 18:18:51,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:18:51,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-23 18:18:51,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523443393] [2021-02-23 18:18:51,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-23 18:18:51,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:18:51,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-23 18:18:51,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2021-02-23 18:18:51,175 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 22 states. [2021-02-23 18:18:51,470 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 18:18:52,151 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-23 18:18:52,370 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-02-23 18:18:52,601 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-23 18:18:52,825 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 18:18:53,069 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 18:18:53,319 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 18:18:53,658 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-02-23 18:18:53,931 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-02-23 18:18:54,265 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-23 18:18:54,617 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 18:19:01,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:19:01,455 INFO L93 Difference]: Finished difference Result 2711 states and 3610 transitions. [2021-02-23 18:19:01,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-23 18:19:01,456 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 186 [2021-02-23 18:19:01,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:19:01,487 INFO L225 Difference]: With dead ends: 2711 [2021-02-23 18:19:01,487 INFO L226 Difference]: Without dead ends: 2118 [2021-02-23 18:19:01,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=556, Invalid=1336, Unknown=0, NotChecked=0, Total=1892 [2021-02-23 18:19:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2021-02-23 18:19:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1929. [2021-02-23 18:19:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2021-02-23 18:19:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2477 transitions. [2021-02-23 18:19:01,991 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2477 transitions. Word has length 186 [2021-02-23 18:19:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:19:01,992 INFO L480 AbstractCegarLoop]: Abstraction has 1929 states and 2477 transitions. [2021-02-23 18:19:01,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-23 18:19:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2477 transitions. [2021-02-23 18:19:02,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-02-23 18:19:02,003 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:19:02,003 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:19:02,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:19:02,004 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:19:02,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:19:02,005 INFO L82 PathProgramCache]: Analyzing trace with hash -544915757, now seen corresponding path program 1 times [2021-02-23 18:19:02,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:19:02,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378360149] [2021-02-23 18:19:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:19:02,144 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-23 18:19:02,151 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-23 18:19:02,260 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size [2021-02-23 18:19:02,264 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size 175 [2021-02-23 18:19:02,370 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size [2021-02-23 18:19:02,375 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size 175 [2021-02-23 18:19:02,475 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-23 18:19:02,480 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-23 18:19:02,481 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:19:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:02,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:02,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:02,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:02,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:02,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:02,696 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 18:19:02,697 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 18:19:02,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:19:02,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:02,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:19:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:02,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:02,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:02,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:02,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:19:02,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-23 18:19:02,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:19:02,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 18:19:02,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-02-23 18:19:02,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:19:02,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 18:19:02,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-02-23 18:19:02,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:02,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:02,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:19:02,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:02,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:19:03,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:03,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:19:03,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:03,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 18:19:03,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:03,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-23 18:19:03,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:03,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-23 18:19:03,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:03,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 18:19:03,182 WARN L141 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size [2021-02-23 18:19:03,183 WARN L147 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size 29 [2021-02-23 18:19:03,186 WARN L141 QuantifierPusher]: treesize reduction 3, result has 94.6 percent of original size [2021-02-23 18:19:03,187 WARN L147 QuantifierPusher]: treesize reduction 3, result has 94.6 percent of original size 53 [2021-02-23 18:19:03,238 WARN L141 QuantifierPusher]: treesize reduction 25, result has 67.9 percent of original size [2021-02-23 18:19:03,239 WARN L147 QuantifierPusher]: treesize reduction 25, result has 67.9 percent of original size 53 [2021-02-23 18:19:03,242 WARN L141 QuantifierPusher]: treesize reduction 26, result has 67.1 percent of original size [2021-02-23 18:19:03,244 WARN L147 QuantifierPusher]: treesize reduction 26, result has 67.1 percent of original size 53 [2021-02-23 18:19:03,245 WARN L141 QuantifierPusher]: treesize reduction 24, result has 68.8 percent of original size [2021-02-23 18:19:03,246 WARN L147 QuantifierPusher]: treesize reduction 24, result has 68.8 percent of original size 53 [2021-02-23 18:19:03,248 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.3 percent of original size [2021-02-23 18:19:03,249 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.3 percent of original size 77 [2021-02-23 18:19:03,326 WARN L141 QuantifierPusher]: treesize reduction 12, result has 90.2 percent of original size [2021-02-23 18:19:03,329 WARN L147 QuantifierPusher]: treesize reduction 12, result has 90.2 percent of original size 111 [2021-02-23 18:19:03,487 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-02-23 18:19:03,492 WARN L141 QuantifierPusher]: treesize reduction 48, result has 66.0 percent of original size [2021-02-23 18:19:03,494 WARN L147 QuantifierPusher]: treesize reduction 48, result has 66.0 percent of original size 93 [2021-02-23 18:19:03,500 WARN L141 QuantifierPusher]: treesize reduction 38, result has 71.0 percent of original size [2021-02-23 18:19:03,502 WARN L147 QuantifierPusher]: treesize reduction 38, result has 71.0 percent of original size 93 [2021-02-23 18:19:03,505 WARN L141 QuantifierPusher]: treesize reduction 37, result has 71.5 percent of original size [2021-02-23 18:19:03,507 WARN L147 QuantifierPusher]: treesize reduction 37, result has 71.5 percent of original size 93 [2021-02-23 18:19:03,509 WARN L141 QuantifierPusher]: treesize reduction 27, result has 77.5 percent of original size [2021-02-23 18:19:03,510 WARN L147 QuantifierPusher]: treesize reduction 27, result has 77.5 percent of original size 93 [2021-02-23 18:19:03,512 WARN L141 QuantifierPusher]: treesize reduction 12, result has 91.4 percent of original size [2021-02-23 18:19:03,514 WARN L147 QuantifierPusher]: treesize reduction 12, result has 91.4 percent of original size 127 [2021-02-23 18:19:03,706 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-02-23 18:19:03,709 WARN L141 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size [2021-02-23 18:19:03,711 WARN L147 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size 113 [2021-02-23 18:19:03,717 WARN L141 QuantifierPusher]: treesize reduction 26, result has 81.3 percent of original size [2021-02-23 18:19:03,723 WARN L147 QuantifierPusher]: treesize reduction 26, result has 81.3 percent of original size 113 [2021-02-23 18:19:03,728 WARN L141 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size [2021-02-23 18:19:03,730 WARN L147 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size 113 [2021-02-23 18:19:03,732 WARN L141 QuantifierPusher]: treesize reduction 48, result has 70.2 percent of original size [2021-02-23 18:19:03,734 WARN L147 QuantifierPusher]: treesize reduction 48, result has 70.2 percent of original size 113 [2021-02-23 18:19:03,740 WARN L141 QuantifierPusher]: treesize reduction 37, result has 75.3 percent of original size [2021-02-23 18:19:03,741 WARN L147 QuantifierPusher]: treesize reduction 37, result has 75.3 percent of original size 113 [2021-02-23 18:19:03,743 WARN L141 QuantifierPusher]: treesize reduction 27, result has 80.7 percent of original size [2021-02-23 18:19:03,745 WARN L147 QuantifierPusher]: treesize reduction 27, result has 80.7 percent of original size 113 [2021-02-23 18:19:03,749 WARN L141 QuantifierPusher]: treesize reduction 12, result has 92.5 percent of original size [2021-02-23 18:19:03,754 WARN L147 QuantifierPusher]: treesize reduction 12, result has 92.5 percent of original size 147 [2021-02-23 18:19:03,980 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-02-23 18:19:03,983 WARN L141 QuantifierPusher]: treesize reduction 26, result has 83.2 percent of original size [2021-02-23 18:19:03,988 WARN L147 QuantifierPusher]: treesize reduction 26, result has 83.2 percent of original size 129 [2021-02-23 18:19:03,991 WARN L141 QuantifierPusher]: treesize reduction 151, result has 0.7 percent of original size [2021-02-23 18:19:03,992 WARN L147 QuantifierPusher]: treesize reduction 151, result has 0.7 percent of original size 1 [2021-02-23 18:19:03,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:03,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:03,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:03,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:03,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378360149] [2021-02-23 18:19:03,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:19:03,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-23 18:19:03,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128307148] [2021-02-23 18:19:03,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-23 18:19:03,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:19:03,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-23 18:19:03,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2021-02-23 18:19:03,999 INFO L87 Difference]: Start difference. First operand 1929 states and 2477 transitions. Second operand 18 states. [2021-02-23 18:19:04,361 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 18:19:04,494 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 18:19:04,621 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 18:19:04,752 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 18:19:04,882 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 18:19:05,021 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-23 18:19:05,191 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-02-23 18:19:05,434 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-02-23 18:19:05,663 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-02-23 18:19:05,964 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-23 18:19:06,398 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-23 18:19:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:19:13,432 INFO L93 Difference]: Finished difference Result 6625 states and 8747 transitions. [2021-02-23 18:19:13,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-23 18:19:13,432 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 190 [2021-02-23 18:19:13,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:19:13,478 INFO L225 Difference]: With dead ends: 6625 [2021-02-23 18:19:13,479 INFO L226 Difference]: Without dead ends: 4726 [2021-02-23 18:19:13,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=465, Invalid=1017, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 18:19:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2021-02-23 18:19:14,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4045. [2021-02-23 18:19:14,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4045 states. [2021-02-23 18:19:14,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4045 states to 4045 states and 5129 transitions. [2021-02-23 18:19:14,502 INFO L78 Accepts]: Start accepts. Automaton has 4045 states and 5129 transitions. Word has length 190 [2021-02-23 18:19:14,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:19:14,503 INFO L480 AbstractCegarLoop]: Abstraction has 4045 states and 5129 transitions. [2021-02-23 18:19:14,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-23 18:19:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4045 states and 5129 transitions. [2021-02-23 18:19:14,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-02-23 18:19:14,523 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:19:14,523 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:19:14,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:19:14,524 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:19:14,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:19:14,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1768752468, now seen corresponding path program 1 times [2021-02-23 18:19:14,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:19:14,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189646571] [2021-02-23 18:19:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:19:14,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:14,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:14,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:14,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:14,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:14,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:14,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:14,738 WARN L141 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size [2021-02-23 18:19:14,743 WARN L147 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size 173 [2021-02-23 18:19:14,886 WARN L141 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size [2021-02-23 18:19:14,894 WARN L147 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size 173 [2021-02-23 18:19:14,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:14,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:15,010 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-23 18:19:15,014 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-23 18:19:15,108 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-23 18:19:15,111 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-23 18:19:15,205 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size [2021-02-23 18:19:15,209 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size 177 [2021-02-23 18:19:15,303 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-23 18:19:15,307 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-23 18:19:15,308 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:19:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:19:15,386 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:19:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:19:15,491 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:19:15,613 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 18:19:15,614 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 18:19:15,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:19:15,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:19:15 BoogieIcfgContainer [2021-02-23 18:19:15,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:19:15,679 INFO L168 Benchmark]: Toolchain (without parser) took 33858.59 ms. Allocated memory was 175.1 MB in the beginning and 643.8 MB in the end (delta: 468.7 MB). Free memory was 150.1 MB in the beginning and 446.9 MB in the end (delta: -296.8 MB). Peak memory consumption was 172.2 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:15,679 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 175.1 MB. Free memory is still 150.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:19:15,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.06 ms. Allocated memory is still 175.1 MB. Free memory was 149.1 MB in the beginning and 154.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:15,680 INFO L168 Benchmark]: Boogie Preprocessor took 123.99 ms. Allocated memory is still 175.1 MB. Free memory was 154.7 MB in the beginning and 150.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:15,680 INFO L168 Benchmark]: RCFGBuilder took 1815.00 ms. Allocated memory is still 175.1 MB. Free memory was 150.1 MB in the beginning and 89.6 MB in the end (delta: 60.5 MB). Peak memory consumption was 62.6 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:15,680 INFO L168 Benchmark]: TraceAbstraction took 31177.06 ms. Allocated memory was 175.1 MB in the beginning and 643.8 MB in the end (delta: 468.7 MB). Free memory was 89.0 MB in the beginning and 446.9 MB in the end (delta: -357.9 MB). Peak memory consumption was 110.3 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:15,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 175.1 MB. Free memory is still 150.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 724.06 ms. Allocated memory is still 175.1 MB. Free memory was 149.1 MB in the beginning and 154.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.99 ms. Allocated memory is still 175.1 MB. Free memory was 154.7 MB in the beginning and 150.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1815.00 ms. Allocated memory is still 175.1 MB. Free memory was 150.1 MB in the beginning and 89.6 MB in the end (delta: 60.5 MB). Peak memory consumption was 62.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 31177.06 ms. Allocated memory was 175.1 MB in the beginning and 643.8 MB in the end (delta: 468.7 MB). Free memory was 89.0 MB in the beginning and 446.9 MB in the end (delta: -357.9 MB). Peak memory consumption was 110.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 536]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int a= 1; [L18] int e= 5; [L19] int d= 4; [L20] int f= 6; [L21] int c= 3; [L24] int u = 21; [L25] int v = 22; [L26] int w = 23; [L27] int x = 24; [L28] int y = 25; [L29] int z = 26; [L32] int a25 = 0; [L33] int a11 = 0; [L34] int a28 = 7; [L35] int a19 = 1; [L36] int a21 = 1; [L37] int a17 = 8; [L613] int output = -1; [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL, EXPR calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L48] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L52] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L57] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L60] COND TRUE ((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7))))) [L61] a28 = 11 [L62] a25 = 1 [L63] return 26; [L624] RET, EXPR calculate_output(input) [L624] output = calculate_output(input) [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL, EXPR calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L48] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L52] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L57] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L60] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L64] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L69] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L75] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L79] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L84] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L92] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L101] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L105] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L109] COND TRUE ((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1)) [L110] a17 = 7 [L111] a25 = 0 [L112] a11 = 1 [L113] a28 = 10 [L114] a19 = 0 [L115] return -1; [L624] RET, EXPR calculate_output(input) [L624] output = calculate_output(input) [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L48] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L52] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L57] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L60] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L64] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L69] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L75] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L79] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L84] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L92] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L101] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L105] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L109] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L116] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L123] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L129] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L133] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L140] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L144] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L149] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L153] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L158] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L164] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L169] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L175] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L179] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L185] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L189] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L195] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L197] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L199] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L201] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L204] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L208] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L212] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L222] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L225] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L228] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L233] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L235] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L242] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L244] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L247] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L258] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L263] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L269] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L271] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L286] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L290] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L293] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L296] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L301] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L303] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L307] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L319] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L324] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L338] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L341] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L347] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L359] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L364] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L371] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L378] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L385] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L388] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L390] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L399] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L404] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L408] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L412] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L414] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L417] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L419] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L424] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L427] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L430] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L433] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L436] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L439] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L442] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7))) [L445] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L448] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L451] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==8))) [L454] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==11))&&!(a19==1))&&(a21==1))&&(a17==8))) [L457] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L460] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L463] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7))) [L466] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==11))&&(a19==1))&&(a21==1))&&(a17==7))) [L469] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L472] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L475] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L478] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L481] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==8))) [L484] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==8))) [L487] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==7))) [L490] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==11))&&!(a19==1))&&(a21==1))&&(a17==8))) [L493] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==8))) [L496] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==8))) [L499] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==7))) [L502] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==11))&&(a19==1))&&(a21==1))&&(a17==8))) [L505] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==7))) [L508] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==7))) [L511] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==8))) [L514] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L517] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L520] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L523] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==7))) [L526] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L529] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==7))) [L532] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L535] COND TRUE (((((!(a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==7)) [L536] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 539 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.0s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1170 SDtfs, 6638 SDslu, 1466 SDs, 0 SdLazy, 8238 SolverSat, 817 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4045occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 3 MinimizatonAttempts, 883 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...