/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/locks/test_locks_6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:52:27,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:52:27,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:52:27,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:52:27,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:52:27,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:52:27,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:52:27,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:52:27,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:52:27,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:52:27,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:52:27,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:52:27,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:52:27,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:52:27,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:52:27,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:52:27,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:52:27,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:52:27,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:52:27,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:52:27,802 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 01:52:27,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:52:27,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:52:27,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:52:27,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:52:27,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:52:27,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:52:27,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:52:27,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:52:27,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:52:27,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:52:27,836 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:52:27,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:52:27,836 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:52:27,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:52:27,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:52:27,837 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:52:27,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:52:27,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:52:27,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:52:27,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:52:27,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:52:27,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:52:27,839 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:52:27,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:52:28,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:52:28,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:52:28,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:52:28,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:52:28,356 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:52:28,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_6.c [2021-02-22 01:52:28,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3276c6c44/4853f5a36275402e81b0282607d71819/FLAGc69daa068 [2021-02-22 01:52:29,177 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:52:29,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_6.c [2021-02-22 01:52:29,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3276c6c44/4853f5a36275402e81b0282607d71819/FLAGc69daa068 [2021-02-22 01:52:29,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3276c6c44/4853f5a36275402e81b0282607d71819 [2021-02-22 01:52:29,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:52:29,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:52:29,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:52:29,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:52:29,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:52:29,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a47b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29, skipping insertion in model container [2021-02-22 01:52:29,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:52:29,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:52:29,738 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_6.c[2544,2557] [2021-02-22 01:52:29,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:52:29,756 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:52:29,799 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_6.c[2544,2557] [2021-02-22 01:52:29,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:52:29,827 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:52:29,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29 WrapperNode [2021-02-22 01:52:29,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:52:29,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:52:29,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:52:29,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:52:29,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (1/1) ... [2021-02-22 01:52:29,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:52:29,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:52:29,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:52:29,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:52:29,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (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 01:52:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:52:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:52:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:52:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:52:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:52:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:52:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:52:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:52:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:52:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:52:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:52:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:52:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:52:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:52:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:52:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:52:30,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:52:30,581 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 01:52:30,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:52:30 BoogieIcfgContainer [2021-02-22 01:52:30,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:52:30,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:52:30,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:52:30,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:52:30,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:52:29" (1/3) ... [2021-02-22 01:52:30,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf7e37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:52:30, skipping insertion in model container [2021-02-22 01:52:30,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:52:29" (2/3) ... [2021-02-22 01:52:30,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf7e37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:52:30, skipping insertion in model container [2021-02-22 01:52:30,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:52:30" (3/3) ... [2021-02-22 01:52:30,597 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_6.c [2021-02-22 01:52:30,605 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:52:30,612 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:52:30,638 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:52:30,675 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:52:30,676 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:52:30,676 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:52:30,676 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:52:30,676 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:52:30,677 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:52:30,677 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:52:30,677 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:52:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2021-02-22 01:52:30,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-22 01:52:30,722 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:30,723 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] [2021-02-22 01:52:30,725 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:30,734 INFO L82 PathProgramCache]: Analyzing trace with hash 156622351, now seen corresponding path program 1 times [2021-02-22 01:52:30,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:30,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970030030] [2021-02-22 01:52:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:30,860 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:31,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:31,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:31,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:31,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:31,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:31,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:31,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:31,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:31,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:31,220 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 01:52:31,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970030030] [2021-02-22 01:52:31,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:31,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:31,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470634113] [2021-02-22 01:52:31,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:31,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:31,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:31,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:31,251 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2021-02-22 01:52:32,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:32,013 INFO L93 Difference]: Finished difference Result 178 states and 238 transitions. [2021-02-22 01:52:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:32,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2021-02-22 01:52:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:32,048 INFO L225 Difference]: With dead ends: 178 [2021-02-22 01:52:32,049 INFO L226 Difference]: Without dead ends: 120 [2021-02-22 01:52:32,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:32,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-02-22 01:52:32,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2021-02-22 01:52:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-22 01:52:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 150 transitions. [2021-02-22 01:52:32,183 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 150 transitions. Word has length 57 [2021-02-22 01:52:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:32,184 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 150 transitions. [2021-02-22 01:52:32,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 150 transitions. [2021-02-22 01:52:32,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-22 01:52:32,188 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:32,188 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] [2021-02-22 01:52:32,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:52:32,189 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:32,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:32,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1202234617, now seen corresponding path program 1 times [2021-02-22 01:52:32,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:32,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715036262] [2021-02-22 01:52:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:32,193 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:32,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:32,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:32,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:32,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:32,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:32,306 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 01:52:32,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715036262] [2021-02-22 01:52:32,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:32,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:32,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480856686] [2021-02-22 01:52:32,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:32,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:32,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:32,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:32,314 INFO L87 Difference]: Start difference. First operand 118 states and 150 transitions. Second operand 4 states. [2021-02-22 01:52:32,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:32,609 INFO L93 Difference]: Finished difference Result 143 states and 183 transitions. [2021-02-22 01:52:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:32,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2021-02-22 01:52:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:32,613 INFO L225 Difference]: With dead ends: 143 [2021-02-22 01:52:32,613 INFO L226 Difference]: Without dead ends: 141 [2021-02-22 01:52:32,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:32,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-02-22 01:52:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 118. [2021-02-22 01:52:32,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-22 01:52:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 149 transitions. [2021-02-22 01:52:32,651 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 149 transitions. Word has length 58 [2021-02-22 01:52:32,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:32,652 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 149 transitions. [2021-02-22 01:52:32,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 149 transitions. [2021-02-22 01:52:32,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-22 01:52:32,654 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:32,654 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] [2021-02-22 01:52:32,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:52:32,655 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:32,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:32,656 INFO L82 PathProgramCache]: Analyzing trace with hash 560570913, now seen corresponding path program 1 times [2021-02-22 01:52:32,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:32,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286305693] [2021-02-22 01:52:32,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:32,660 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:32,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:32,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:32,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:32,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:32,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:32,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:32,806 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 01:52:32,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286305693] [2021-02-22 01:52:32,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:32,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:32,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893063352] [2021-02-22 01:52:32,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:32,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:32,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:32,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:32,812 INFO L87 Difference]: Start difference. First operand 118 states and 149 transitions. Second operand 4 states. [2021-02-22 01:52:33,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:33,084 INFO L93 Difference]: Finished difference Result 274 states and 365 transitions. [2021-02-22 01:52:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:33,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2021-02-22 01:52:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:33,087 INFO L225 Difference]: With dead ends: 274 [2021-02-22 01:52:33,088 INFO L226 Difference]: Without dead ends: 193 [2021-02-22 01:52:33,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:33,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-02-22 01:52:33,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2021-02-22 01:52:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-02-22 01:52:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 248 transitions. [2021-02-22 01:52:33,138 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 248 transitions. Word has length 58 [2021-02-22 01:52:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:33,138 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 248 transitions. [2021-02-22 01:52:33,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 248 transitions. [2021-02-22 01:52:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-22 01:52:33,141 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:33,141 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] [2021-02-22 01:52:33,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:52:33,142 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:33,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:33,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1569348316, now seen corresponding path program 1 times [2021-02-22 01:52:33,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:33,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259199034] [2021-02-22 01:52:33,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:33,146 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:33,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:33,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:33,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:33,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:33,232 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 01:52:33,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259199034] [2021-02-22 01:52:33,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:33,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:33,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989022902] [2021-02-22 01:52:33,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:33,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:33,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:33,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:33,235 INFO L87 Difference]: Start difference. First operand 191 states and 248 transitions. Second operand 4 states. [2021-02-22 01:52:33,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:33,465 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2021-02-22 01:52:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:33,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2021-02-22 01:52:33,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:33,468 INFO L225 Difference]: With dead ends: 233 [2021-02-22 01:52:33,468 INFO L226 Difference]: Without dead ends: 231 [2021-02-22 01:52:33,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:33,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-02-22 01:52:33,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 191. [2021-02-22 01:52:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-02-22 01:52:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 246 transitions. [2021-02-22 01:52:33,514 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 246 transitions. Word has length 59 [2021-02-22 01:52:33,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:33,514 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 246 transitions. [2021-02-22 01:52:33,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:33,515 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 246 transitions. [2021-02-22 01:52:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-22 01:52:33,517 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:33,517 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] [2021-02-22 01:52:33,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:52:33,518 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:33,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:33,518 INFO L82 PathProgramCache]: Analyzing trace with hash 198074819, now seen corresponding path program 1 times [2021-02-22 01:52:33,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:33,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375622706] [2021-02-22 01:52:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:33,522 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:33,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:33,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:33,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:33,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:33,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:33,598 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 01:52:33,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375622706] [2021-02-22 01:52:33,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:33,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:33,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499850716] [2021-02-22 01:52:33,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:33,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:33,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:33,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:33,601 INFO L87 Difference]: Start difference. First operand 191 states and 246 transitions. Second operand 4 states. [2021-02-22 01:52:33,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:33,858 INFO L93 Difference]: Finished difference Result 487 states and 648 transitions. [2021-02-22 01:52:33,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:33,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2021-02-22 01:52:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:33,861 INFO L225 Difference]: With dead ends: 487 [2021-02-22 01:52:33,861 INFO L226 Difference]: Without dead ends: 333 [2021-02-22 01:52:33,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:33,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-02-22 01:52:33,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 331. [2021-02-22 01:52:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2021-02-22 01:52:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 430 transitions. [2021-02-22 01:52:33,950 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 430 transitions. Word has length 59 [2021-02-22 01:52:33,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:33,950 INFO L480 AbstractCegarLoop]: Abstraction has 331 states and 430 transitions. [2021-02-22 01:52:33,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 430 transitions. [2021-02-22 01:52:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-22 01:52:33,953 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:33,953 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] [2021-02-22 01:52:33,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:52:33,953 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:33,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:33,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1845598165, now seen corresponding path program 1 times [2021-02-22 01:52:33,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:33,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224949240] [2021-02-22 01:52:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:33,957 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:33,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:33,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:33,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:33,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:34,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:34,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:34,032 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 01:52:34,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224949240] [2021-02-22 01:52:34,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:34,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:34,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928940023] [2021-02-22 01:52:34,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:34,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:34,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:34,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:34,035 INFO L87 Difference]: Start difference. First operand 331 states and 430 transitions. Second operand 4 states. [2021-02-22 01:52:34,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:34,355 INFO L93 Difference]: Finished difference Result 895 states and 1184 transitions. [2021-02-22 01:52:34,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:34,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2021-02-22 01:52:34,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:34,360 INFO L225 Difference]: With dead ends: 895 [2021-02-22 01:52:34,360 INFO L226 Difference]: Without dead ends: 601 [2021-02-22 01:52:34,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:34,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-02-22 01:52:34,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2021-02-22 01:52:34,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-22 01:52:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 774 transitions. [2021-02-22 01:52:34,502 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 774 transitions. Word has length 60 [2021-02-22 01:52:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:34,503 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 774 transitions. [2021-02-22 01:52:34,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:34,503 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 774 transitions. [2021-02-22 01:52:34,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-22 01:52:34,505 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:34,505 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] [2021-02-22 01:52:34,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 01:52:34,506 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:34,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:34,506 INFO L82 PathProgramCache]: Analyzing trace with hash -64970725, now seen corresponding path program 1 times [2021-02-22 01:52:34,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:34,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966805562] [2021-02-22 01:52:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:34,509 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:34,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:34,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:34,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:34,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:34,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:34,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:34,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:34,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:34,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:34,585 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 01:52:34,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966805562] [2021-02-22 01:52:34,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:34,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:34,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022210574] [2021-02-22 01:52:34,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:34,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:34,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:34,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:34,587 INFO L87 Difference]: Start difference. First operand 599 states and 774 transitions. Second operand 4 states. [2021-02-22 01:52:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:34,941 INFO L93 Difference]: Finished difference Result 731 states and 944 transitions. [2021-02-22 01:52:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:34,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2021-02-22 01:52:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:34,946 INFO L225 Difference]: With dead ends: 731 [2021-02-22 01:52:34,947 INFO L226 Difference]: Without dead ends: 729 [2021-02-22 01:52:34,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-02-22 01:52:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 599. [2021-02-22 01:52:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-22 01:52:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 766 transitions. [2021-02-22 01:52:35,070 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 766 transitions. Word has length 60 [2021-02-22 01:52:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:35,071 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 766 transitions. [2021-02-22 01:52:35,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:35,071 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 766 transitions. [2021-02-22 01:52:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-22 01:52:35,072 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:35,073 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] [2021-02-22 01:52:35,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 01:52:35,073 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:35,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:35,074 INFO L82 PathProgramCache]: Analyzing trace with hash -673905288, now seen corresponding path program 1 times [2021-02-22 01:52:35,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:35,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847620720] [2021-02-22 01:52:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:35,076 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:35,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:35,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:35,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:35,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:35,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:35,146 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 01:52:35,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847620720] [2021-02-22 01:52:35,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:35,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:35,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78275647] [2021-02-22 01:52:35,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:35,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:35,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:35,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:35,148 INFO L87 Difference]: Start difference. First operand 599 states and 766 transitions. Second operand 4 states. [2021-02-22 01:52:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:35,484 INFO L93 Difference]: Finished difference Result 723 states and 920 transitions. [2021-02-22 01:52:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:35,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2021-02-22 01:52:35,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:35,488 INFO L225 Difference]: With dead ends: 723 [2021-02-22 01:52:35,489 INFO L226 Difference]: Without dead ends: 721 [2021-02-22 01:52:35,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:35,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2021-02-22 01:52:35,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 599. [2021-02-22 01:52:35,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-22 01:52:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 758 transitions. [2021-02-22 01:52:35,591 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 758 transitions. Word has length 61 [2021-02-22 01:52:35,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:35,592 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 758 transitions. [2021-02-22 01:52:35,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:35,592 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 758 transitions. [2021-02-22 01:52:35,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-22 01:52:35,593 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:35,593 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] [2021-02-22 01:52:35,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 01:52:35,594 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:35,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1379214711, now seen corresponding path program 1 times [2021-02-22 01:52:35,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:35,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137510202] [2021-02-22 01:52:35,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:35,597 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:35,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:35,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:35,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:35,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:35,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:35,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:35,685 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 01:52:35,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137510202] [2021-02-22 01:52:35,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:35,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:35,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137997829] [2021-02-22 01:52:35,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:35,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:35,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:35,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:35,688 INFO L87 Difference]: Start difference. First operand 599 states and 758 transitions. Second operand 4 states. [2021-02-22 01:52:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:36,093 INFO L93 Difference]: Finished difference Result 1675 states and 2136 transitions. [2021-02-22 01:52:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:36,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2021-02-22 01:52:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:36,100 INFO L225 Difference]: With dead ends: 1675 [2021-02-22 01:52:36,100 INFO L226 Difference]: Without dead ends: 1113 [2021-02-22 01:52:36,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2021-02-22 01:52:36,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1111. [2021-02-22 01:52:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2021-02-22 01:52:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1382 transitions. [2021-02-22 01:52:36,290 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1382 transitions. Word has length 61 [2021-02-22 01:52:36,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:36,291 INFO L480 AbstractCegarLoop]: Abstraction has 1111 states and 1382 transitions. [2021-02-22 01:52:36,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1382 transitions. [2021-02-22 01:52:36,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-22 01:52:36,293 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:36,293 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] [2021-02-22 01:52:36,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 01:52:36,293 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:36,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:36,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1923960111, now seen corresponding path program 1 times [2021-02-22 01:52:36,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:36,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672664393] [2021-02-22 01:52:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:36,296 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:36,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:36,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:36,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:36,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:36,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:36,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:36,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:36,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:36,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:36,356 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 01:52:36,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672664393] [2021-02-22 01:52:36,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:36,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:36,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905231008] [2021-02-22 01:52:36,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:36,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:36,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:36,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:36,358 INFO L87 Difference]: Start difference. First operand 1111 states and 1382 transitions. Second operand 4 states. [2021-02-22 01:52:36,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:36,780 INFO L93 Difference]: Finished difference Result 1323 states and 1624 transitions. [2021-02-22 01:52:36,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:36,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-02-22 01:52:36,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:36,788 INFO L225 Difference]: With dead ends: 1323 [2021-02-22 01:52:36,788 INFO L226 Difference]: Without dead ends: 1321 [2021-02-22 01:52:36,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-02-22 01:52:36,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1111. [2021-02-22 01:52:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2021-02-22 01:52:36,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1366 transitions. [2021-02-22 01:52:36,962 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1366 transitions. Word has length 62 [2021-02-22 01:52:36,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:36,963 INFO L480 AbstractCegarLoop]: Abstraction has 1111 states and 1366 transitions. [2021-02-22 01:52:36,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:36,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1366 transitions. [2021-02-22 01:52:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-22 01:52:36,964 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:36,965 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] [2021-02-22 01:52:36,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 01:52:36,965 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:36,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:36,966 INFO L82 PathProgramCache]: Analyzing trace with hash -193770103, now seen corresponding path program 1 times [2021-02-22 01:52:36,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:36,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196333395] [2021-02-22 01:52:36,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:36,968 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:36,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:36,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:36,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:36,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:36,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:36,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:37,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:37,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:37,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:37,029 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 01:52:37,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196333395] [2021-02-22 01:52:37,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:37,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:37,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441065269] [2021-02-22 01:52:37,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:37,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:37,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:37,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:37,031 INFO L87 Difference]: Start difference. First operand 1111 states and 1366 transitions. Second operand 4 states. [2021-02-22 01:52:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:37,584 INFO L93 Difference]: Finished difference Result 3161 states and 3895 transitions. [2021-02-22 01:52:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:37,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2021-02-22 01:52:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:37,590 INFO L225 Difference]: With dead ends: 3161 [2021-02-22 01:52:37,590 INFO L226 Difference]: Without dead ends: 1111 [2021-02-22 01:52:37,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:37,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2021-02-22 01:52:37,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1111. [2021-02-22 01:52:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2021-02-22 01:52:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1302 transitions. [2021-02-22 01:52:37,752 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1302 transitions. Word has length 62 [2021-02-22 01:52:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:37,752 INFO L480 AbstractCegarLoop]: Abstraction has 1111 states and 1302 transitions. [2021-02-22 01:52:37,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:37,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1302 transitions. [2021-02-22 01:52:37,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-22 01:52:37,754 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:52:37,754 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] [2021-02-22 01:52:37,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-22 01:52:37,755 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:52:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:52:37,755 INFO L82 PathProgramCache]: Analyzing trace with hash 853409228, now seen corresponding path program 1 times [2021-02-22 01:52:37,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:52:37,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40692015] [2021-02-22 01:52:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:52:37,758 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:52:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:37,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:37,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:37,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:37,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:52:37,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:37,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:37,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:52:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:52:37,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:52:37,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:52:37,813 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 01:52:37,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40692015] [2021-02-22 01:52:37,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:52:37,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:52:37,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37159842] [2021-02-22 01:52:37,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:52:37,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:52:37,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:52:37,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:52:37,815 INFO L87 Difference]: Start difference. First operand 1111 states and 1302 transitions. Second operand 4 states. [2021-02-22 01:52:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:52:38,100 INFO L93 Difference]: Finished difference Result 1111 states and 1302 transitions. [2021-02-22 01:52:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 01:52:38,100 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2021-02-22 01:52:38,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:52:38,101 INFO L225 Difference]: With dead ends: 1111 [2021-02-22 01:52:38,101 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:52:38,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:52:38,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:52:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:52:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:52:38,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:52:38,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2021-02-22 01:52:38,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:52:38,104 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:52:38,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:52:38,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:52:38,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:52:38,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-22 01:52:38,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:52:38,525 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 31 [2021-02-22 01:52:38,854 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 31 [2021-02-22 01:52:38,962 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 53 [2021-02-22 01:52:39,071 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 41 [2021-02-22 01:52:39,489 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-22 01:52:39,836 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-22 01:52:40,036 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-22 01:52:40,255 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-22 01:52:40,359 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2021-02-22 01:52:40,713 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-22 01:52:40,826 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 45 [2021-02-22 01:52:41,116 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 31 [2021-02-22 01:52:41,339 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 31 [2021-02-22 01:52:41,760 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-22 01:52:42,187 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 39 [2021-02-22 01:52:42,786 WARN L202 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-22 01:52:44,174 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-22 01:52:45,497 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-22 01:52:46,159 WARN L202 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-22 01:52:46,291 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2021-02-22 01:52:46,532 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-22 01:52:47,275 WARN L202 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-22 01:52:47,391 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2021-02-22 01:52:48,695 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-22 01:52:48,976 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-22 01:52:49,288 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-22 01:52:49,402 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2021-02-22 01:52:49,950 WARN L202 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-22 01:52:51,267 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-22 01:52:52,756 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-22 01:52:53,033 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-22 01:52:56,214 WARN L202 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 111 DAG size of output: 91 [2021-02-22 01:52:56,760 WARN L202 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-22 01:52:56,868 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2021-02-22 01:52:56,999 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2021-02-22 01:52:57,299 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-22 01:52:57,309 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:52:57,309 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:52:57,309 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:52:57,309 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:52:57,310 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:52:57,310 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:52:57,310 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:52:57,310 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:52:57,310 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-22 01:52:57,310 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-22 01:52:57,310 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:52:57,311 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:52:57,311 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:52:57,311 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:52:57,311 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:52:57,311 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:52:57,311 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:52:57,312 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-22 01:52:57,312 INFO L185 CegarLoopUtils]: At program point L60-1(lines 29 104) the Hoare annotation is: (let ((.cse6 (= main_~p2~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse5 (= main_~p3~0 0)) (.cse3 (= main_~p1~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse7 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse0 .cse3 .cse6) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse2 .cse3 .cse6) (and .cse4 .cse5 .cse3 .cse6) (and .cse5 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse7) (and .cse0 .cse2 .cse6 .cse7) (and .cse5 .cse2 .cse6 .cse7) (and .cse4 .cse0 .cse6 .cse7) (and .cse4 .cse0 .cse1 .cse3) (and .cse4 .cse0 .cse1 .cse7) (and .cse4 .cse5 .cse1 .cse7) (and .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse7))) [2021-02-22 01:52:57,312 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 6 109) the Hoare annotation is: true [2021-02-22 01:52:57,313 INFO L185 CegarLoopUtils]: At program point L85(line 85) the Hoare annotation is: (let ((.cse3 (= main_~p5~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse2 (= main_~p6~0 0)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~lk6~0 1)) (.cse6 (= main_~p4~0 0)) (.cse5 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse4 .cse5) (and .cse1 .cse2 .cse6 .cse5) (and .cse1 .cse2 .cse3 .cse6) (and .cse1 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse5) (and .cse1 .cse4 .cse6 .cse5))) [2021-02-22 01:52:57,313 INFO L185 CegarLoopUtils]: At program point L52-1(lines 29 104) the Hoare annotation is: (let ((.cse0 (= main_~lk2~0 1)) (.cse2 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0)) (.cse1 (= main_~lk1~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse2) (and .cse3 .cse1))) [2021-02-22 01:52:57,313 INFO L192 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: true [2021-02-22 01:52:57,313 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-22 01:52:57,313 INFO L192 CegarLoopUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2021-02-22 01:52:57,313 INFO L192 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: true [2021-02-22 01:52:57,314 INFO L185 CegarLoopUtils]: At program point L69(line 69) the Hoare annotation is: (let ((.cse0 (= main_~lk3~0 1)) (.cse6 (= main_~p2~0 0)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse7 (= main_~p3~0 0)) (.cse5 (= main_~p5~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse9 (= main_~p1~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .cse4) (and .cse8 .cse0 .cse5 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse6 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse5 .cse1 .cse4) (and .cse7 .cse1 .cse2 .cse3 .cse9) (and .cse8 .cse7 .cse5 .cse6 .cse4) (and .cse8 .cse7 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse2 .cse9 .cse6) (and .cse8 .cse7 .cse3 .cse6 .cse4) (and .cse8 .cse7 .cse3 .cse9 .cse6) (and .cse7 .cse2 .cse3 .cse9 .cse6) (and .cse8 .cse0 .cse5 .cse1 .cse9) (and .cse7 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .cse9) (and .cse8 .cse0 .cse1 .cse3 .cse9) (and .cse8 .cse0 .cse5 .cse9 .cse6) (and .cse8 .cse7 .cse5 .cse9 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse9) (and .cse0 .cse2 .cse3 .cse9 .cse6) (and .cse8 .cse7 .cse1 .cse3 .cse9) (and .cse8 .cse0 .cse3 .cse9 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse9) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse9 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse9))) [2021-02-22 01:52:57,314 INFO L192 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: true [2021-02-22 01:52:57,314 INFO L185 CegarLoopUtils]: At program point L61(line 61) the Hoare annotation is: (let ((.cse2 (= main_~lk1~0 1)) (.cse4 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse0 (= main_~lk3~0 1)) (.cse5 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse1 .cse2) (and .cse0 .cse1 .cse5) (and .cse4 .cse5 .cse3) (and .cse4 .cse3 .cse2) (and .cse4 .cse1 .cse5) (and .cse0 .cse5 .cse3))) [2021-02-22 01:52:57,314 INFO L185 CegarLoopUtils]: At program point L94-1(lines 29 104) the Hoare annotation is: (or (= main_~p6~0 0) (= main_~lk6~0 1)) [2021-02-22 01:52:57,314 INFO L185 CegarLoopUtils]: At program point L86(line 86) the Hoare annotation is: (let ((.cse3 (= main_~p5~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse2 (= main_~p6~0 0)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~lk6~0 1)) (.cse6 (= main_~p4~0 0)) (.cse5 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse4 .cse5) (and .cse1 .cse2 .cse6 .cse5) (and .cse1 .cse2 .cse3 .cse6) (and .cse1 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse5) (and .cse1 .cse4 .cse6 .cse5))) [2021-02-22 01:52:57,315 INFO L185 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-22 01:52:57,315 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-22 01:52:57,315 INFO L192 CegarLoopUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2021-02-22 01:52:57,315 INFO L192 CegarLoopUtils]: At program point L20-2(line 20) the Hoare annotation is: true [2021-02-22 01:52:57,315 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-22 01:52:57,315 INFO L185 CegarLoopUtils]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (= main_~lk5~0 1))) (or (and (= main_~lk6~0 1) .cse0) (and (= main_~p6~0 0) .cse0))) [2021-02-22 01:52:57,315 INFO L192 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: true [2021-02-22 01:52:57,316 INFO L185 CegarLoopUtils]: At program point L79-1(lines 29 104) the Hoare annotation is: (let ((.cse2 (= main_~p5~0 0)) (.cse4 (= main_~p6~0 0)) (.cse6 (= main_~lk3~0 1)) (.cse7 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~p3~0 0)) (.cse3 (= main_~lk6~0 1)) (.cse5 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse5) (and .cse0 .cse6 .cse4 .cse2) (and .cse4 .cse1 .cse2 .cse7) (and .cse6 .cse4 .cse7 .cse5) (and .cse1 .cse2 .cse3 .cse7) (and .cse1 .cse3 .cse7 .cse5) (and .cse0 .cse4 .cse1 .cse2) (and .cse4 .cse1 .cse7 .cse5) (and .cse0 .cse6 .cse2 .cse3) (and .cse0 .cse6 .cse3 .cse5) (and .cse6 .cse4 .cse2 .cse7) (and .cse6 .cse2 .cse3 .cse7) (and .cse0 .cse6 .cse4 .cse5) (and .cse6 .cse3 .cse7 .cse5) (and .cse0 .cse1 .cse3 .cse5))) [2021-02-22 01:52:57,316 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 6 109) the Hoare annotation is: true [2021-02-22 01:52:57,316 INFO L192 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: true [2021-02-22 01:52:57,316 INFO L185 CegarLoopUtils]: At program point L96(line 96) the Hoare annotation is: (let ((.cse0 (= main_~lk5~0 1))) (or (and (= main_~lk6~0 1) .cse0) (and (= main_~p6~0 0) .cse0))) [2021-02-22 01:52:57,316 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 107) the Hoare annotation is: false [2021-02-22 01:52:57,316 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-22 01:52:57,316 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 6 109) the Hoare annotation is: true [2021-02-22 01:52:57,317 INFO L192 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: true [2021-02-22 01:52:57,317 INFO L192 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: true [2021-02-22 01:52:57,317 INFO L185 CegarLoopUtils]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse6 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0)) (.cse4 (= main_~lk6~0 1)) (.cse7 (= main_~p6~0 0)) (.cse1 (= main_~p3~0 0)) (.cse3 (= main_~lk2~0 1)) (.cse5 (= main_~p4~0 0)) (.cse8 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse1 .cse3 .cse8) (and .cse0 .cse7 .cse1 .cse2 .cse3) (and .cse1 .cse3 .cse4 .cse5 .cse8) (and .cse6 .cse7 .cse3 .cse5 .cse8) (and .cse6 .cse7 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8) (and .cse6 .cse3 .cse4 .cse5 .cse8) (and .cse0 .cse6 .cse7 .cse3 .cse8) (and .cse0 .cse6 .cse3 .cse4 .cse8) (and .cse7 .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse6 .cse7 .cse2 .cse3) (and .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse3 .cse5 .cse8))) [2021-02-22 01:52:57,317 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-22 01:52:57,317 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-22 01:52:57,317 INFO L192 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: true [2021-02-22 01:52:57,318 INFO L192 CegarLoopUtils]: At program point L105(lines 7 109) the Hoare annotation is: true [2021-02-22 01:52:57,318 INFO L192 CegarLoopUtils]: At program point L31(lines 31 33) the Hoare annotation is: true [2021-02-22 01:52:57,318 INFO L185 CegarLoopUtils]: At program point L64-1(lines 29 104) the Hoare annotation is: (let ((.cse0 (= main_~lk3~0 1)) (.cse6 (= main_~p2~0 0)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse7 (= main_~p3~0 0)) (.cse5 (= main_~p5~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse9 (= main_~p1~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse6 .cse4) (and .cse8 .cse0 .cse5 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse5 .cse1 .cse4) (and .cse7 .cse1 .cse2 .cse3 .cse9) (and .cse8 .cse7 .cse5 .cse6 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse8 .cse7 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse9 .cse6) (and .cse8 .cse7 .cse3 .cse6 .cse4) (and .cse8 .cse7 .cse3 .cse9 .cse6) (and .cse7 .cse2 .cse3 .cse9 .cse6) (and .cse8 .cse0 .cse5 .cse1 .cse9) (and .cse7 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse1 .cse2 .cse9) (and .cse8 .cse0 .cse1 .cse3 .cse9) (and .cse8 .cse0 .cse5 .cse9 .cse6) (and .cse8 .cse7 .cse5 .cse9 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse9) (and .cse0 .cse2 .cse3 .cse9 .cse6) (and .cse8 .cse7 .cse1 .cse3 .cse9) (and .cse8 .cse0 .cse3 .cse9 .cse6) (and .cse0 .cse5 .cse1 .cse2 .cse9) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse5 .cse2 .cse9 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4) (and .cse8 .cse7 .cse5 .cse1 .cse9))) [2021-02-22 01:52:57,318 INFO L185 CegarLoopUtils]: At program point L89-1(lines 29 104) the Hoare annotation is: (let ((.cse0 (= main_~lk6~0 1)) (.cse1 (= main_~lk5~0 1)) (.cse3 (= main_~p6~0 0)) (.cse2 (= main_~p5~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and .cse3 .cse1) (and .cse3 .cse2))) [2021-02-22 01:52:57,318 INFO L192 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: true [2021-02-22 01:52:57,319 INFO L185 CegarLoopUtils]: At program point L56-1(lines 29 104) the Hoare annotation is: (let ((.cse2 (= main_~lk1~0 1)) (.cse4 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse0 (= main_~lk3~0 1)) (.cse5 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse1 .cse2) (and .cse0 .cse1 .cse5) (and .cse4 .cse5 .cse3) (and .cse4 .cse3 .cse2) (and .cse4 .cse1 .cse5) (and .cse0 .cse5 .cse3))) [2021-02-22 01:52:57,319 INFO L192 CegarLoopUtils]: At program point L23-1(line 23) the Hoare annotation is: true [2021-02-22 01:52:57,319 INFO L192 CegarLoopUtils]: At program point L23-2(line 23) the Hoare annotation is: true [2021-02-22 01:52:57,319 INFO L185 CegarLoopUtils]: At program point L81(line 81) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse6 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0)) (.cse4 (= main_~lk6~0 1)) (.cse7 (= main_~p6~0 0)) (.cse1 (= main_~p3~0 0)) (.cse3 (= main_~lk2~0 1)) (.cse5 (= main_~p4~0 0)) (.cse8 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse1 .cse3 .cse8) (and .cse0 .cse7 .cse1 .cse2 .cse3) (and .cse1 .cse3 .cse4 .cse5 .cse8) (and .cse6 .cse7 .cse3 .cse5 .cse8) (and .cse6 .cse7 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8) (and .cse6 .cse3 .cse4 .cse5 .cse8) (and .cse0 .cse6 .cse7 .cse3 .cse8) (and .cse0 .cse6 .cse3 .cse4 .cse8) (and .cse7 .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse6 .cse7 .cse2 .cse3) (and .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse3 .cse5 .cse8))) [2021-02-22 01:52:57,319 INFO L192 CegarLoopUtils]: At program point L48(lines 48 50) the Hoare annotation is: true [2021-02-22 01:52:57,319 INFO L192 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: true [2021-02-22 01:52:57,320 INFO L185 CegarLoopUtils]: At program point L48-2(lines 29 104) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-22 01:52:57,320 INFO L192 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: true [2021-02-22 01:52:57,320 INFO L185 CegarLoopUtils]: At program point L65(line 65) the Hoare annotation is: (let ((.cse6 (= main_~p2~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse5 (= main_~p3~0 0)) (.cse3 (= main_~p1~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse7 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse4 .cse0 .cse3 .cse6) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse2 .cse3 .cse6) (and .cse4 .cse5 .cse3 .cse6) (and .cse5 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse7) (and .cse0 .cse2 .cse6 .cse7) (and .cse5 .cse2 .cse6 .cse7) (and .cse4 .cse0 .cse6 .cse7) (and .cse4 .cse0 .cse1 .cse3) (and .cse4 .cse0 .cse1 .cse7) (and .cse4 .cse5 .cse1 .cse7) (and .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse7))) [2021-02-22 01:52:57,320 INFO L185 CegarLoopUtils]: At program point L90(line 90) the Hoare annotation is: (let ((.cse2 (= main_~p5~0 0)) (.cse3 (= main_~lk6~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~p6~0 0)) (.cse4 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-22 01:52:57,320 INFO L185 CegarLoopUtils]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (= main_~lk2~0 1)) (.cse2 (= main_~p1~0 0)) (.cse3 (= main_~p2~0 0)) (.cse1 (= main_~lk1~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse2) (and .cse3 .cse1))) [2021-02-22 01:52:57,320 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-22 01:52:57,320 INFO L192 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: true [2021-02-22 01:52:57,321 INFO L185 CegarLoopUtils]: At program point L107(line 107) the Hoare annotation is: false [2021-02-22 01:52:57,321 INFO L185 CegarLoopUtils]: At program point L74-1(lines 29 104) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0)) (.cse4 (= main_~lk6~0 1)) (.cse8 (= main_~p2~0 0)) (.cse5 (= main_~p6~0 0)) (.cse6 (= main_~p3~0 0)) (.cse3 (= main_~lk2~0 1)) (.cse9 (= main_~p4~0 0)) (.cse7 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse1 .cse5 .cse2 .cse8) (and .cse1 .cse4 .cse9 .cse7 .cse8) (and .cse6 .cse3 .cse4 .cse9 .cse7) (and .cse0 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse4 .cse7 .cse8) (and .cse6 .cse2 .cse4 .cse9 .cse8) (and .cse0 .cse6 .cse4 .cse7 .cse8) (and .cse1 .cse3 .cse4 .cse9 .cse7) (and .cse0 .cse1 .cse5 .cse3 .cse7) (and .cse0 .cse1 .cse3 .cse4 .cse7) (and .cse0 .cse1 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse9 .cse7 .cse8) (and .cse5 .cse6 .cse9 .cse7 .cse8) (and .cse0 .cse5 .cse6 .cse2 .cse8) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse6 .cse2 .cse4 .cse8) (and .cse6 .cse2 .cse3 .cse4 .cse9) (and .cse0 .cse5 .cse6 .cse2 .cse3) (and .cse1 .cse5 .cse3 .cse9 .cse7) (and .cse1 .cse5 .cse2 .cse3 .cse9) (and .cse0 .cse6 .cse3 .cse4 .cse7) (and .cse1 .cse5 .cse2 .cse9 .cse8) (and .cse5 .cse6 .cse2 .cse9 .cse8) (and .cse1 .cse2 .cse4 .cse9 .cse8) (and .cse1 .cse5 .cse9 .cse7 .cse8) (and .cse0 .cse1 .cse5 .cse7 .cse8) (and .cse5 .cse6 .cse2 .cse3 .cse9) (and .cse1 .cse2 .cse3 .cse4 .cse9) (and .cse0 .cse1 .cse2 .cse4 .cse8) (and .cse5 .cse6 .cse3 .cse9 .cse7))) [2021-02-22 01:52:57,321 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-22 01:52:57,321 INFO L192 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2021-02-22 01:52:57,321 INFO L192 CegarLoopUtils]: At program point L99-1(lines 29 104) the Hoare annotation is: true [2021-02-22 01:52:57,322 INFO L185 CegarLoopUtils]: At program point L91(line 91) the Hoare annotation is: (let ((.cse2 (= main_~p5~0 0)) (.cse3 (= main_~lk6~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~p6~0 0)) (.cse4 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-22 01:52:57,322 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-22 01:52:57,322 INFO L192 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: true [2021-02-22 01:52:57,322 INFO L192 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: true [2021-02-22 01:52:57,322 INFO L185 CegarLoopUtils]: At program point L108(line 108) the Hoare annotation is: false [2021-02-22 01:52:57,323 INFO L185 CegarLoopUtils]: At program point L75(line 75) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse10 (= main_~lk2~0 1)) (.cse1 (= main_~p6~0 0)) (.cse2 (= main_~p3~0 0)) (.cse9 (= main_~p5~0 0)) (.cse8 (= main_~lk3~0 1)) (.cse6 (= main_~lk6~0 1)) (.cse7 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~p2~0 0)) (.cse5 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse10 .cse5) (and .cse0 .cse8 .cse9 .cse6 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse7 .cse4 .cse5) (and .cse0 .cse2 .cse10 .cse6 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse10 .cse6 .cse3 .cse5) (and .cse8 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse10 .cse7 .cse3 .cse5) (and .cse1 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse10 .cse7 .cse5) (and .cse8 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse8 .cse1 .cse10 .cse3 .cse5) (and .cse2 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse2 .cse9 .cse10 .cse6 .cse5) (and .cse2 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse10 .cse3 .cse5) (and .cse0 .cse2 .cse9 .cse6 .cse4 .cse5) (and .cse8 .cse1 .cse10 .cse7 .cse3 .cse5) (and .cse2 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse9 .cse10 .cse6 .cse5) (and .cse8 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse9 .cse10 .cse7 .cse5) (and .cse1 .cse2 .cse9 .cse7 .cse4 .cse5) (and .cse8 .cse6 .cse7 .cse3 .cse4 .cse5))) [2021-02-22 01:52:57,323 INFO L192 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: true [2021-02-22 01:52:57,323 INFO L192 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: true [2021-02-22 01:52:57,323 INFO L185 CegarLoopUtils]: At program point L100(line 100) the Hoare annotation is: (= main_~lk6~0 1) [2021-02-22 01:52:57,323 INFO L185 CegarLoopUtils]: At program point L100-1(lines 7 109) the Hoare annotation is: false [2021-02-22 01:52:57,323 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-22 01:52:57,324 INFO L185 CegarLoopUtils]: At program point L84-1(lines 29 104) the Hoare annotation is: (let ((.cse5 (= main_~lk6~0 1)) (.cse4 (= main_~p5~0 0)) (.cse1 (= main_~p4~0 0)) (.cse3 (= main_~lk4~0 1)) (.cse0 (= main_~p6~0 0)) (.cse2 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse4) (and .cse3 .cse5 .cse2) (and .cse4 .cse5 .cse1) (and .cse5 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse0 .cse4 .cse1) (and .cse3 .cse0 .cse2))) [2021-02-22 01:52:57,324 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-22 01:52:57,324 INFO L185 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1)) (.cse10 (= main_~lk2~0 1)) (.cse1 (= main_~p6~0 0)) (.cse2 (= main_~p3~0 0)) (.cse9 (= main_~p5~0 0)) (.cse8 (= main_~lk3~0 1)) (.cse6 (= main_~lk6~0 1)) (.cse7 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~p2~0 0)) (.cse5 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse10 .cse5) (and .cse0 .cse8 .cse9 .cse6 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse7 .cse4 .cse5) (and .cse0 .cse2 .cse10 .cse6 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse10 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse10 .cse6 .cse3 .cse5) (and .cse8 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse8 .cse1 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse10 .cse7 .cse3 .cse5) (and .cse1 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse8 .cse1 .cse9 .cse10 .cse7 .cse5) (and .cse8 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse8 .cse1 .cse10 .cse3 .cse5) (and .cse2 .cse9 .cse10 .cse6 .cse7 .cse5) (and .cse0 .cse2 .cse9 .cse10 .cse6 .cse5) (and .cse2 .cse10 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse10 .cse3 .cse5) (and .cse0 .cse2 .cse9 .cse6 .cse4 .cse5) (and .cse8 .cse1 .cse10 .cse7 .cse3 .cse5) (and .cse2 .cse9 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse8 .cse9 .cse10 .cse6 .cse5) (and .cse8 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse9 .cse4 .cse5) (and .cse1 .cse2 .cse9 .cse10 .cse7 .cse5) (and .cse1 .cse2 .cse9 .cse7 .cse4 .cse5) (and .cse8 .cse6 .cse7 .cse3 .cse4 .cse5))) [2021-02-22 01:52:57,324 INFO L185 CegarLoopUtils]: At program point L101(line 101) the Hoare annotation is: (= main_~lk6~0 1) [2021-02-22 01:52:57,325 INFO L185 CegarLoopUtils]: At program point L68-1(lines 29 104) the Hoare annotation is: (let ((.cse6 (= main_~lk6~0 1)) (.cse9 (= main_~p1~0 0)) (.cse10 (= main_~lk3~0 1)) (.cse3 (= main_~lk5~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse4 (= main_~p2~0 0)) (.cse1 (= main_~p6~0 0)) (.cse2 (= main_~p3~0 0)) (.cse11 (= main_~p5~0 0)) (.cse8 (= main_~lk2~0 1)) (.cse7 (= main_~p4~0 0)) (.cse5 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse8 .cse6 .cse3 .cse9) (and .cse10 .cse11 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse10 .cse1 .cse11 .cse9 .cse4) (and .cse0 .cse10 .cse11 .cse6 .cse4 .cse5) (and .cse0 .cse10 .cse1 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse11 .cse6 .cse9 .cse4) (and .cse0 .cse2 .cse6 .cse3 .cse9 .cse4) (and .cse0 .cse10 .cse11 .cse6 .cse9 .cse4) (and .cse0 .cse10 .cse8 .cse6 .cse3 .cse5) (and .cse0 .cse10 .cse1 .cse3 .cse9 .cse4) (and .cse10 .cse11 .cse8 .cse6 .cse7 .cse9) (and .cse10 .cse1 .cse11 .cse8 .cse7 .cse5) (and .cse10 .cse11 .cse8 .cse6 .cse7 .cse5) (and .cse2 .cse11 .cse8 .cse6 .cse7 .cse9) (and .cse0 .cse10 .cse1 .cse8 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse8 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse11 .cse8 .cse9) (and .cse10 .cse1 .cse8 .cse7 .cse3 .cse5) (and .cse2 .cse11 .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse10 .cse11 .cse8 .cse6 .cse5) (and .cse10 .cse11 .cse6 .cse7 .cse9 .cse4) (and .cse1 .cse2 .cse11 .cse7 .cse4 .cse5) (and .cse10 .cse6 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse8 .cse3 .cse9) (and .cse2 .cse11 .cse6 .cse7 .cse9 .cse4) (and .cse10 .cse1 .cse11 .cse7 .cse9 .cse4) (and .cse0 .cse10 .cse8 .cse6 .cse3 .cse9) (and .cse0 .cse10 .cse6 .cse3 .cse4 .cse5) (and .cse0 .cse10 .cse1 .cse11 .cse8 .cse5) (and .cse0 .cse10 .cse6 .cse3 .cse9 .cse4) (and .cse10 .cse8 .cse6 .cse7 .cse3 .cse9) (and .cse10 .cse1 .cse7 .cse3 .cse9 .cse4) (and .cse10 .cse1 .cse11 .cse7 .cse4 .cse5) (and .cse1 .cse2 .cse7 .cse3 .cse9 .cse4) (and .cse1 .cse2 .cse8 .cse7 .cse3 .cse9) (and .cse0 .cse2 .cse8 .cse6 .cse3 .cse5) (and .cse0 .cse1 .cse2 .cse11 .cse8 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and .cse10 .cse8 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse2 .cse11 .cse8 .cse6 .cse9) (and .cse10 .cse6 .cse7 .cse3 .cse9 .cse4) (and .cse0 .cse10 .cse1 .cse11 .cse4 .cse5) (and .cse1 .cse2 .cse8 .cse7 .cse3 .cse5) (and .cse10 .cse1 .cse8 .cse7 .cse3 .cse9) (and .cse0 .cse1 .cse2 .cse11 .cse9 .cse4) (and .cse2 .cse6 .cse7 .cse3 .cse9 .cse4) (and .cse0 .cse10 .cse11 .cse8 .cse6 .cse9) (and .cse1 .cse2 .cse7 .cse3 .cse4 .cse5) (and .cse10 .cse1 .cse11 .cse8 .cse7 .cse9) (and .cse2 .cse8 .cse6 .cse7 .cse3 .cse9) (and .cse2 .cse11 .cse8 .cse6 .cse7 .cse5) (and .cse0 .cse2 .cse11 .cse8 .cse6 .cse5) (and .cse2 .cse8 .cse6 .cse7 .cse3 .cse5) (and .cse0 .cse10 .cse1 .cse8 .cse3 .cse9) (and .cse0 .cse2 .cse11 .cse6 .cse4 .cse5) (and .cse1 .cse2 .cse11 .cse8 .cse7 .cse9) (and .cse1 .cse2 .cse11 .cse7 .cse9 .cse4) (and .cse0 .cse10 .cse1 .cse11 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse4) (and .cse10 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse11 .cse4 .cse5) (and .cse1 .cse2 .cse11 .cse8 .cse7 .cse5))) [2021-02-22 01:52:57,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:52:57 BoogieIcfgContainer [2021-02-22 01:52:57,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:52:57,340 INFO L168 Benchmark]: Toolchain (without parser) took 27829.01 ms. Allocated memory was 151.0 MB in the beginning and 483.4 MB in the end (delta: 332.4 MB). Free memory was 127.7 MB in the beginning and 340.8 MB in the end (delta: -213.1 MB). Peak memory consumption was 297.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:52:57,341 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:52:57,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.65 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:52:57,342 INFO L168 Benchmark]: Boogie Preprocessor took 78.97 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:52:57,342 INFO L168 Benchmark]: RCFGBuilder took 675.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 126.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:52:57,343 INFO L168 Benchmark]: TraceAbstraction took 26750.02 ms. Allocated memory was 151.0 MB in the beginning and 483.4 MB in the end (delta: 332.4 MB). Free memory was 125.8 MB in the beginning and 340.8 MB in the end (delta: -215.0 MB). Peak memory consumption was 295.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:52:57,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 302.65 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.97 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 675.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 126.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26750.02 ms. Allocated memory was 151.0 MB in the beginning and 483.4 MB in the end (delta: 332.4 MB). Free memory was 125.8 MB in the beginning and 340.8 MB in the end (delta: -215.0 MB). Peak memory consumption was 295.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 19.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1447 SDtfs, 1651 SDslu, 184 SDs, 0 SdLazy, 1044 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1111occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 535 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 87 LocationsWithAnnotation, 87 PreInvPairs, 2143 NumberOfFragments, 5883 HoareAnnotationTreeSize, 87 FomulaSimplifications, 423099 FormulaSimplificationTreeSizeReduction, 4.0s HoareSimplificationTime, 87 FomulaSimplificationsInter, 12518 FormulaSimplificationTreeSizeReductionInter, 15.0s HoareSimplificationTimeInter, 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 correct! Received shutdown request...