/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:00:54,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:00:54,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:00:54,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:00:54,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:00:54,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:00:54,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:00:54,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:00:54,770 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:00:54,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:00:54,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:00:54,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:00:54,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:00:54,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:00:54,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:00:54,772 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:00:54,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:00:54,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:00:54,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:00:54,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:00:54,774 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:00:54,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:00:54,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:00:54,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:00:54,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:00:54,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:00:54,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:00:54,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:00:55,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:00:55,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:00:55,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:00:55,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:00:55,231 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:00:55,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2021-02-23 23:00:55,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb1af282/9c74c9b5dae84dc185e5d90bbb23bcb8/FLAG3f8b55884 [2021-02-23 23:00:56,033 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:00:56,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c [2021-02-23 23:00:56,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb1af282/9c74c9b5dae84dc185e5d90bbb23bcb8/FLAG3f8b55884 [2021-02-23 23:00:56,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb1af282/9c74c9b5dae84dc185e5d90bbb23bcb8 [2021-02-23 23:00:56,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:00:56,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:00:56,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:00:56,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:00:56,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:00:56,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136d54c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56, skipping insertion in model container [2021-02-23 23:00:56,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:00:56,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:00:56,718 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_5.c[2207,2220] [2021-02-23 23:00:56,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:00:56,733 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:00:56,772 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_5.c[2207,2220] [2021-02-23 23:00:56,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:00:56,798 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:00:56,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56 WrapperNode [2021-02-23 23:00:56,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:00:56,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:00:56,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:00:56,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:00:56,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... [2021-02-23 23:00:56,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:00:56,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:00:56,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:00:56,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:00:56,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:00:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:00:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:00:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:00:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:00:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:00:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:00:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:00:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:00:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:00:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:00:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:00:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:00:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:00:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:00:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:00:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:00:57,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:00:57,349 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 23:00:57,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:00:57 BoogieIcfgContainer [2021-02-23 23:00:57,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:00:57,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:00:57,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:00:57,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:00:57,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:00:56" (1/3) ... [2021-02-23 23:00:57,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fe47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:00:57, skipping insertion in model container [2021-02-23 23:00:57,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:00:56" (2/3) ... [2021-02-23 23:00:57,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fe47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:00:57, skipping insertion in model container [2021-02-23 23:00:57,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:00:57" (3/3) ... [2021-02-23 23:00:57,363 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2021-02-23 23:00:57,371 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:00:57,376 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:00:57,399 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:00:57,426 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:00:57,426 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:00:57,426 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:00:57,427 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:00:57,427 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:00:57,427 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:00:57,427 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:00:57,427 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:00:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2021-02-23 23:00:57,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-23 23:00:57,456 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:00:57,457 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] [2021-02-23 23:00:57,458 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:00:57,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:00:57,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1676485373, now seen corresponding path program 1 times [2021-02-23 23:00:57,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:00:57,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946737219] [2021-02-23 23:00:57,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:00:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:57,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:57,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:57,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:57,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:00:57,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:57,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:57,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:00:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:57,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:57,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:00:57,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946737219] [2021-02-23 23:00:57,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:00:57,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:00:57,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328418194] [2021-02-23 23:00:57,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:00:57,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:00:57,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:00:57,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:00:57,981 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2021-02-23 23:00:58,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:00:58,382 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2021-02-23 23:00:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:00:58,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-02-23 23:00:58,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:00:58,401 INFO L225 Difference]: With dead ends: 156 [2021-02-23 23:00:58,401 INFO L226 Difference]: Without dead ends: 104 [2021-02-23 23:00:58,408 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 [2021-02-23 23:00:58,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-23 23:00:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2021-02-23 23:00:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-23 23:00:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 128 transitions. [2021-02-23 23:00:58,525 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 128 transitions. Word has length 51 [2021-02-23 23:00:58,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:00:58,527 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 128 transitions. [2021-02-23 23:00:58,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:00:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 128 transitions. [2021-02-23 23:00:58,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 23:00:58,532 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:00:58,532 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] [2021-02-23 23:00:58,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:00:58,534 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:00:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:00:58,537 INFO L82 PathProgramCache]: Analyzing trace with hash 65982356, now seen corresponding path program 1 times [2021-02-23 23:00:58,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:00:58,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107520573] [2021-02-23 23:00:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:00:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:58,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:58,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:58,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:58,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:00:58,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:58,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:58,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:00:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:58,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:58,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:00:58,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107520573] [2021-02-23 23:00:58,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:00:58,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:00:58,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248212098] [2021-02-23 23:00:58,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:00:58,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:00:58,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:00:58,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:00:58,699 INFO L87 Difference]: Start difference. First operand 102 states and 128 transitions. Second operand 4 states. [2021-02-23 23:00:58,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:00:58,917 INFO L93 Difference]: Finished difference Result 124 states and 156 transitions. [2021-02-23 23:00:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:00:58,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2021-02-23 23:00:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:00:58,920 INFO L225 Difference]: With dead ends: 124 [2021-02-23 23:00:58,920 INFO L226 Difference]: Without dead ends: 122 [2021-02-23 23:00:58,921 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 [2021-02-23 23:00:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-02-23 23:00:58,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2021-02-23 23:00:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-23 23:00:58,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2021-02-23 23:00:58,945 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 52 [2021-02-23 23:00:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:00:58,945 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2021-02-23 23:00:58,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:00:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2021-02-23 23:00:58,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 23:00:58,947 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:00:58,947 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] [2021-02-23 23:00:58,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:00:58,948 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:00:58,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:00:58,949 INFO L82 PathProgramCache]: Analyzing trace with hash -431193335, now seen corresponding path program 1 times [2021-02-23 23:00:58,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:00:58,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439215698] [2021-02-23 23:00:58,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:00:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:58,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:58,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:58,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:58,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:00:58,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:58,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:00:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:59,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:00:59,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439215698] [2021-02-23 23:00:59,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:00:59,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:00:59,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115331326] [2021-02-23 23:00:59,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:00:59,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:00:59,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:00:59,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:00:59,038 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand 4 states. [2021-02-23 23:00:59,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:00:59,256 INFO L93 Difference]: Finished difference Result 234 states and 307 transitions. [2021-02-23 23:00:59,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:00:59,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2021-02-23 23:00:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:00:59,263 INFO L225 Difference]: With dead ends: 234 [2021-02-23 23:00:59,263 INFO L226 Difference]: Without dead ends: 165 [2021-02-23 23:00:59,265 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 [2021-02-23 23:00:59,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-02-23 23:00:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 163. [2021-02-23 23:00:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-02-23 23:00:59,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 208 transitions. [2021-02-23 23:00:59,309 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 208 transitions. Word has length 52 [2021-02-23 23:00:59,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:00:59,310 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 208 transitions. [2021-02-23 23:00:59,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:00:59,310 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 208 transitions. [2021-02-23 23:00:59,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 23:00:59,312 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:00:59,312 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] [2021-02-23 23:00:59,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:00:59,313 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:00:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:00:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash 10712637, now seen corresponding path program 1 times [2021-02-23 23:00:59,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:00:59,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334454007] [2021-02-23 23:00:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:00:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:59,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:00:59,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:00:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:59,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:00:59,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334454007] [2021-02-23 23:00:59,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:00:59,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:00:59,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120451038] [2021-02-23 23:00:59,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:00:59,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:00:59,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:00:59,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:00:59,393 INFO L87 Difference]: Start difference. First operand 163 states and 208 transitions. Second operand 4 states. [2021-02-23 23:00:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:00:59,576 INFO L93 Difference]: Finished difference Result 199 states and 254 transitions. [2021-02-23 23:00:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:00:59,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 23:00:59,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:00:59,579 INFO L225 Difference]: With dead ends: 199 [2021-02-23 23:00:59,579 INFO L226 Difference]: Without dead ends: 197 [2021-02-23 23:00:59,579 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 [2021-02-23 23:00:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-02-23 23:00:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 163. [2021-02-23 23:00:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-02-23 23:00:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 206 transitions. [2021-02-23 23:00:59,650 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 206 transitions. Word has length 53 [2021-02-23 23:00:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:00:59,653 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 206 transitions. [2021-02-23 23:00:59,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:00:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 206 transitions. [2021-02-23 23:00:59,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 23:00:59,656 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:00:59,656 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] [2021-02-23 23:00:59,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:00:59,656 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:00:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:00:59,657 INFO L82 PathProgramCache]: Analyzing trace with hash -481845449, now seen corresponding path program 1 times [2021-02-23 23:00:59,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:00:59,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991697589] [2021-02-23 23:00:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:00:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:59,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:00:59,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:00:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:00:59,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:00:59,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:00:59,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:00:59,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991697589] [2021-02-23 23:00:59,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:00:59,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:00:59,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028993505] [2021-02-23 23:00:59,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:00:59,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:00:59,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:00:59,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:00:59,730 INFO L87 Difference]: Start difference. First operand 163 states and 206 transitions. Second operand 4 states. [2021-02-23 23:00:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:00:59,963 INFO L93 Difference]: Finished difference Result 411 states and 536 transitions. [2021-02-23 23:00:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:00:59,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 23:00:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:00:59,966 INFO L225 Difference]: With dead ends: 411 [2021-02-23 23:00:59,966 INFO L226 Difference]: Without dead ends: 281 [2021-02-23 23:00:59,968 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 [2021-02-23 23:00:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-23 23:01:00,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2021-02-23 23:01:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2021-02-23 23:01:00,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 354 transitions. [2021-02-23 23:01:00,023 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 354 transitions. Word has length 53 [2021-02-23 23:01:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:01:00,023 INFO L480 AbstractCegarLoop]: Abstraction has 279 states and 354 transitions. [2021-02-23 23:01:00,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:01:00,024 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 354 transitions. [2021-02-23 23:01:00,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-23 23:01:00,025 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:01:00,025 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] [2021-02-23 23:01:00,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:01:00,026 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:01:00,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:01:00,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1702648280, now seen corresponding path program 1 times [2021-02-23 23:01:00,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:01:00,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630607256] [2021-02-23 23:01:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:01:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:00,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:01:00,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:01:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:00,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:01:00,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630607256] [2021-02-23 23:01:00,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:01:00,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:01:00,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824162660] [2021-02-23 23:01:00,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:01:00,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:01:00,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:01:00,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:01:00,099 INFO L87 Difference]: Start difference. First operand 279 states and 354 transitions. Second operand 4 states. [2021-02-23 23:01:00,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:01:00,310 INFO L93 Difference]: Finished difference Result 339 states and 428 transitions. [2021-02-23 23:01:00,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:01:00,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2021-02-23 23:01:00,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:01:00,313 INFO L225 Difference]: With dead ends: 339 [2021-02-23 23:01:00,313 INFO L226 Difference]: Without dead ends: 337 [2021-02-23 23:01:00,314 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 [2021-02-23 23:01:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-02-23 23:01:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 279. [2021-02-23 23:01:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2021-02-23 23:01:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 350 transitions. [2021-02-23 23:01:00,388 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 350 transitions. Word has length 54 [2021-02-23 23:01:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:01:00,390 INFO L480 AbstractCegarLoop]: Abstraction has 279 states and 350 transitions. [2021-02-23 23:01:00,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:01:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 350 transitions. [2021-02-23 23:01:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-23 23:01:00,392 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:01:00,393 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] [2021-02-23 23:01:00,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:01:00,393 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:01:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:01:00,394 INFO L82 PathProgramCache]: Analyzing trace with hash -2052060611, now seen corresponding path program 1 times [2021-02-23 23:01:00,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:01:00,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830072344] [2021-02-23 23:01:00,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:01:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:00,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:01:00,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:01:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:00,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:01:00,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830072344] [2021-02-23 23:01:00,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:01:00,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:01:00,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588785075] [2021-02-23 23:01:00,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:01:00,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:01:00,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:01:00,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:01:00,511 INFO L87 Difference]: Start difference. First operand 279 states and 350 transitions. Second operand 4 states. [2021-02-23 23:01:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:01:00,757 INFO L93 Difference]: Finished difference Result 747 states and 952 transitions. [2021-02-23 23:01:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:01:00,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2021-02-23 23:01:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:01:00,761 INFO L225 Difference]: With dead ends: 747 [2021-02-23 23:01:00,762 INFO L226 Difference]: Without dead ends: 501 [2021-02-23 23:01:00,764 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 [2021-02-23 23:01:00,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-02-23 23:01:00,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 499. [2021-02-23 23:01:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2021-02-23 23:01:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 618 transitions. [2021-02-23 23:01:00,876 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 618 transitions. Word has length 54 [2021-02-23 23:01:00,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:01:00,876 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 618 transitions. [2021-02-23 23:01:00,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:01:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 618 transitions. [2021-02-23 23:01:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-02-23 23:01:00,878 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:01:00,878 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] [2021-02-23 23:01:00,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:01:00,879 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:01:00,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:01:00,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1017738513, now seen corresponding path program 1 times [2021-02-23 23:01:00,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:01:00,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379139574] [2021-02-23 23:01:00,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:01:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:00,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:01:00,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:01:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:00,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:00,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:01:00,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379139574] [2021-02-23 23:01:00,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:01:00,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:01:00,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276096987] [2021-02-23 23:01:00,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:01:00,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:01:00,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:01:00,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:01:00,943 INFO L87 Difference]: Start difference. First operand 499 states and 618 transitions. Second operand 4 states. [2021-02-23 23:01:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:01:01,187 INFO L93 Difference]: Finished difference Result 599 states and 732 transitions. [2021-02-23 23:01:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:01:01,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2021-02-23 23:01:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:01:01,191 INFO L225 Difference]: With dead ends: 599 [2021-02-23 23:01:01,191 INFO L226 Difference]: Without dead ends: 597 [2021-02-23 23:01:01,193 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 [2021-02-23 23:01:01,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-02-23 23:01:01,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 499. [2021-02-23 23:01:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2021-02-23 23:01:01,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 610 transitions. [2021-02-23 23:01:01,281 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 610 transitions. Word has length 55 [2021-02-23 23:01:01,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:01:01,281 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 610 transitions. [2021-02-23 23:01:01,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:01:01,282 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 610 transitions. [2021-02-23 23:01:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-02-23 23:01:01,283 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:01:01,283 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] [2021-02-23 23:01:01,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 23:01:01,283 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:01:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:01:01,284 INFO L82 PathProgramCache]: Analyzing trace with hash 810877291, now seen corresponding path program 1 times [2021-02-23 23:01:01,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:01:01,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853360870] [2021-02-23 23:01:01,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:01:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:01,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:01,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:01:01,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:01,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:01:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:01,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:01:01,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853360870] [2021-02-23 23:01:01,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:01:01,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:01:01,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356042656] [2021-02-23 23:01:01,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:01:01,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:01:01,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:01:01,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:01:01,338 INFO L87 Difference]: Start difference. First operand 499 states and 610 transitions. Second operand 4 states. [2021-02-23 23:01:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:01:01,645 INFO L93 Difference]: Finished difference Result 1381 states and 1699 transitions. [2021-02-23 23:01:01,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:01:01,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2021-02-23 23:01:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:01:01,649 INFO L225 Difference]: With dead ends: 1381 [2021-02-23 23:01:01,649 INFO L226 Difference]: Without dead ends: 499 [2021-02-23 23:01:01,652 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 [2021-02-23 23:01:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-02-23 23:01:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2021-02-23 23:01:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2021-02-23 23:01:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 578 transitions. [2021-02-23 23:01:01,731 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 578 transitions. Word has length 55 [2021-02-23 23:01:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:01:01,732 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 578 transitions. [2021-02-23 23:01:01,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:01:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 578 transitions. [2021-02-23 23:01:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-23 23:01:01,733 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:01:01,733 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] [2021-02-23 23:01:01,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 23:01:01,734 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:01:01,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:01:01,734 INFO L82 PathProgramCache]: Analyzing trace with hash -549616452, now seen corresponding path program 1 times [2021-02-23 23:01:01,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:01:01,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090826162] [2021-02-23 23:01:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:01:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:01,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:01,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:01:01,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:01,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:01:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:01:01,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:01:01,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:01:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:01:01,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090826162] [2021-02-23 23:01:01,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:01:01,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:01:01,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511026365] [2021-02-23 23:01:01,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:01:01,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:01:01,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:01:01,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:01:01,804 INFO L87 Difference]: Start difference. First operand 499 states and 578 transitions. Second operand 4 states. [2021-02-23 23:01:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:01:01,998 INFO L93 Difference]: Finished difference Result 499 states and 578 transitions. [2021-02-23 23:01:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 23:01:01,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2021-02-23 23:01:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:01:01,999 INFO L225 Difference]: With dead ends: 499 [2021-02-23 23:01:01,999 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:01:02,001 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 [2021-02-23 23:01:02,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:01:02,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:01:02,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:01:02,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:01:02,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2021-02-23 23:01:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:01:02,003 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:01:02,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:01:02,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:01:02,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:01:02,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 23:01:02,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:01:02,260 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 39 [2021-02-23 23:01:02,792 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 31 [2021-02-23 23:01:03,054 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 31 [2021-02-23 23:01:04,104 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 23:01:04,488 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 23:01:04,948 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-23 23:01:06,058 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-02-23 23:01:06,254 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 23:01:06,581 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2021-02-23 23:01:07,084 WARN L202 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-02-23 23:01:07,546 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 23:01:07,765 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-23 23:01:08,097 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-02-23 23:01:08,584 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-02-23 23:01:08,588 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 23:01:08,588 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 23:01:08,588 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 23:01:08,588 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 23:01:08,589 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 23:01:08,589 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:01:08,589 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 23:01:08,589 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 23:01:08,589 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 23:01:08,589 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|)) [2021-02-23 23:01:08,589 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 23:01:08,589 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 23:01:08,590 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:01:08,590 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:01:08,590 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:01:08,590 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 23:01:08,590 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 23:01:08,590 INFO L185 CegarLoopUtils]: At program point L93(line 93) the Hoare annotation is: false [2021-02-23 23:01:08,590 INFO L185 CegarLoopUtils]: At program point L60(line 60) 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 .cse5 .cse2 .cse6 .cse7) (and .cse0 .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))) [2021-02-23 23:01:08,591 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-23 23:01:08,591 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-23 23:01:08,591 INFO L192 CegarLoopUtils]: At program point L27-2(line 27) the Hoare annotation is: true [2021-02-23 23:01:08,591 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 6 95) the Hoare annotation is: true [2021-02-23 23:01:08,591 INFO L185 CegarLoopUtils]: At program point L52(line 52) 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))) [2021-02-23 23:01:08,591 INFO L192 CegarLoopUtils]: At program point L85-1(lines 26 90) the Hoare annotation is: true [2021-02-23 23:01:08,592 INFO L185 CegarLoopUtils]: At program point L77(line 77) the Hoare annotation is: (let ((.cse2 (= main_~lk5~0 1)) (.cse3 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse2) (and .cse1 .cse4 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-23 23:01:08,592 INFO L192 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: true [2021-02-23 23:01:08,592 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-23 23:01:08,592 INFO L192 CegarLoopUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2021-02-23 23:01:08,592 INFO L192 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: true [2021-02-23 23:01:08,592 INFO L185 CegarLoopUtils]: At program point L94(line 94) the Hoare annotation is: false [2021-02-23 23:01:08,592 INFO L192 CegarLoopUtils]: At program point L28(lines 28 30) the Hoare annotation is: true [2021-02-23 23:01:08,592 INFO L185 CegarLoopUtils]: At program point L86(line 86) the Hoare annotation is: (= main_~lk5~0 1) [2021-02-23 23:01:08,593 INFO L185 CegarLoopUtils]: At program point L86-1(lines 7 95) the Hoare annotation is: false [2021-02-23 23:01:08,593 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-23 23:01:08,593 INFO L192 CegarLoopUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2021-02-23 23:01:08,593 INFO L192 CegarLoopUtils]: At program point L20-2(line 20) the Hoare annotation is: true [2021-02-23 23:01:08,593 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-23 23:01:08,593 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-23 23:01:08,594 INFO L185 CegarLoopUtils]: At program point L70-1(lines 26 90) the Hoare annotation is: (let ((.cse1 (= main_~p3~0 0)) (.cse4 (= main_~lk5~0 1)) (.cse5 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse3 (= main_~lk3~0 1)) (.cse2 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse1 .cse5 .cse4) (and .cse1 .cse2 .cse5) (and .cse0 .cse1 .cse4) (and .cse3 .cse5 .cse4) (and .cse3 .cse2 .cse5) (and .cse0 .cse3 .cse2))) [2021-02-23 23:01:08,594 INFO L185 CegarLoopUtils]: At program point L87(line 87) the Hoare annotation is: (= main_~lk5~0 1) [2021-02-23 23:01:08,594 INFO L192 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: true [2021-02-23 23:01:08,594 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 6 95) the Hoare annotation is: true [2021-02-23 23:01:08,594 INFO L185 CegarLoopUtils]: At program point L71(line 71) the Hoare annotation is: (let ((.cse6 (= main_~p5~0 0)) (.cse5 (= main_~lk3~0 1)) (.cse2 (= main_~p4~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse0 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse3 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse4 .cse0 .cse6 .cse1) (and .cse4 .cse5 .cse6 .cse1) (and .cse5 .cse6 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3))) [2021-02-23 23:01:08,594 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) the Hoare annotation is: false [2021-02-23 23:01:08,594 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 6 95) the Hoare annotation is: true [2021-02-23 23:01:08,595 INFO L185 CegarLoopUtils]: At program point L55-1(lines 26 90) 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))) [2021-02-23 23:01:08,595 INFO L185 CegarLoopUtils]: At program point L80-1(lines 26 90) the Hoare annotation is: (or (= main_~p5~0 0) (= main_~lk5~0 1)) [2021-02-23 23:01:08,595 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-23 23:01:08,595 INFO L185 CegarLoopUtils]: At program point L47-1(lines 26 90) 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))) [2021-02-23 23:01:08,595 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-23 23:01:08,595 INFO L192 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: true [2021-02-23 23:01:08,596 INFO L185 CegarLoopUtils]: At program point L72(line 72) the Hoare annotation is: (let ((.cse6 (= main_~p5~0 0)) (.cse5 (= main_~lk3~0 1)) (.cse2 (= main_~p4~0 0)) (.cse4 (= main_~lk4~0 1)) (.cse0 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse3 (= main_~lk5~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse3) (and .cse0 .cse6 .cse1 .cse2) (and .cse4 .cse0 .cse6 .cse1) (and .cse4 .cse5 .cse6 .cse1) (and .cse5 .cse6 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3))) [2021-02-23 23:01:08,596 INFO L192 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: true [2021-02-23 23:01:08,596 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-23 23:01:08,596 INFO L185 CegarLoopUtils]: At program point L56(line 56) 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))) [2021-02-23 23:01:08,596 INFO L185 CegarLoopUtils]: At program point L81(line 81) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1))) (or (and .cse0 (= main_~lk5~0 1)) (and .cse0 (= main_~p5~0 0)))) [2021-02-23 23:01:08,596 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-23 23:01:08,597 INFO L192 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: true [2021-02-23 23:01:08,597 INFO L185 CegarLoopUtils]: At program point L65-1(lines 26 90) the Hoare annotation is: (let ((.cse6 (= main_~lk3~0 1)) (.cse0 (= main_~lk4~0 1)) (.cse4 (= main_~lk2~0 1)) (.cse2 (= main_~lk5~0 1)) (.cse1 (= main_~p3~0 0)) (.cse7 (= main_~p5~0 0)) (.cse5 (= main_~p4~0 0)) (.cse3 (= main_~p2~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse2) (and .cse0 .cse6 .cse7 .cse4) (and .cse6 .cse4 .cse5 .cse2) (and .cse0 .cse6 .cse2 .cse3) (and .cse0 .cse1 .cse7 .cse3) (and .cse6 .cse7 .cse5 .cse3) (and .cse0 .cse6 .cse4 .cse2) (and .cse1 .cse7 .cse4 .cse5) (and .cse6 .cse5 .cse2 .cse3) (and .cse0 .cse6 .cse7 .cse3) (and .cse1 .cse5 .cse2 .cse3) (and .cse0 .cse1 .cse7 .cse4) (and .cse6 .cse7 .cse4 .cse5) (and .cse0 .cse1 .cse4 .cse2) (and .cse1 .cse7 .cse5 .cse3))) [2021-02-23 23:01:08,597 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-23 23:01:08,597 INFO L185 CegarLoopUtils]: At program point L82(line 82) the Hoare annotation is: (let ((.cse0 (= main_~lk4~0 1))) (or (and .cse0 (= main_~lk5~0 1)) (and .cse0 (= main_~p5~0 0)))) [2021-02-23 23:01:08,597 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-23 23:01:08,597 INFO L192 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2021-02-23 23:01:08,598 INFO L185 CegarLoopUtils]: At program point L66(line 66) the Hoare annotation is: (let ((.cse7 (= main_~p5~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse6 (= main_~p2~0 0)) (.cse5 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse7 .cse2 .cse6 .cse4) (and .cse8 .cse0 .cse7 .cse6 .cse4) (and .cse5 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse7 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse7 .cse1 .cse4) (and .cse8 .cse5 .cse7 .cse6 .cse4) (and .cse0 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse8 .cse5 .cse3 .cse6 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4))) [2021-02-23 23:01:08,598 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-23 23:01:08,598 INFO L192 CegarLoopUtils]: At program point L91(lines 7 95) the Hoare annotation is: true [2021-02-23 23:01:08,598 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-23 23:01:08,598 INFO L192 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: true [2021-02-23 23:01:08,598 INFO L192 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: true [2021-02-23 23:01:08,598 INFO L185 CegarLoopUtils]: At program point L75-1(lines 26 90) the Hoare annotation is: (let ((.cse1 (= main_~lk5~0 1)) (.cse2 (= main_~lk4~0 1)) (.cse3 (= main_~p5~0 0)) (.cse0 (= main_~p4~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse2 .cse3) (and .cse3 .cse0))) [2021-02-23 23:01:08,599 INFO L192 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: true [2021-02-23 23:01:08,599 INFO L185 CegarLoopUtils]: At program point L67(line 67) the Hoare annotation is: (let ((.cse7 (= main_~p5~0 0)) (.cse0 (= main_~lk3~0 1)) (.cse8 (= main_~lk4~0 1)) (.cse6 (= main_~p2~0 0)) (.cse5 (= main_~p3~0 0)) (.cse1 (= main_~lk2~0 1)) (.cse2 (= main_~p4~0 0)) (.cse3 (= main_~lk5~0 1)) (.cse4 (= main_~lk1~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse7 .cse2 .cse6 .cse4) (and .cse8 .cse0 .cse7 .cse6 .cse4) (and .cse5 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse7 .cse1 .cse4) (and .cse8 .cse0 .cse1 .cse3 .cse4) (and .cse8 .cse0 .cse7 .cse1 .cse4) (and .cse8 .cse5 .cse7 .cse6 .cse4) (and .cse0 .cse7 .cse1 .cse2 .cse4) (and .cse8 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse8 .cse0 .cse3 .cse6 .cse4) (and .cse8 .cse5 .cse3 .cse6 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4))) [2021-02-23 23:01:08,599 INFO L185 CegarLoopUtils]: At program point L59-1(lines 26 90) 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))) [2021-02-23 23:01:08,599 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-23 23:01:08,600 INFO L185 CegarLoopUtils]: At program point L51-1(lines 26 90) 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))) [2021-02-23 23:01:08,600 INFO L185 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (let ((.cse2 (= main_~lk5~0 1)) (.cse3 (= main_~p4~0 0)) (.cse0 (= main_~lk4~0 1)) (.cse1 (= main_~lk3~0 1)) (.cse4 (= main_~p5~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse2) (and .cse1 .cse4 .cse3) (and .cse0 .cse1 .cse4))) [2021-02-23 23:01:08,600 INFO L192 CegarLoopUtils]: At program point L43(lines 43 45) the Hoare annotation is: true [2021-02-23 23:01:08,600 INFO L185 CegarLoopUtils]: At program point L43-2(lines 26 90) the Hoare annotation is: (or (= main_~p1~0 0) (= main_~lk1~0 1)) [2021-02-23 23:01:08,600 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-23 23:01:08,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:01:08 BoogieIcfgContainer [2021-02-23 23:01:08,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:01:08,616 INFO L168 Benchmark]: Toolchain (without parser) took 12208.38 ms. Allocated memory was 159.4 MB in the beginning and 342.9 MB in the end (delta: 183.5 MB). Free memory was 134.5 MB in the beginning and 222.1 MB in the end (delta: -87.6 MB). Peak memory consumption was 202.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:01:08,616 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 159.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:01:08,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.54 ms. Allocated memory is still 159.4 MB. Free memory was 133.3 MB in the beginning and 123.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 23:01:08,618 INFO L168 Benchmark]: Boogie Preprocessor took 67.25 ms. Allocated memory is still 159.4 MB. Free memory was 123.7 MB in the beginning and 122.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:01:08,618 INFO L168 Benchmark]: RCFGBuilder took 483.14 ms. Allocated memory is still 159.4 MB. Free memory was 122.0 MB in the beginning and 137.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-23 23:01:08,619 INFO L168 Benchmark]: TraceAbstraction took 11260.19 ms. Allocated memory was 159.4 MB in the beginning and 342.9 MB in the end (delta: 183.5 MB). Free memory was 137.4 MB in the beginning and 222.1 MB in the end (delta: -84.7 MB). Peak memory consumption was 205.2 MB. Max. memory is 8.0 GB. [2021-02-23 23:01:08,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17 ms. Allocated memory is still 159.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 374.54 ms. Allocated memory is still 159.4 MB. Free memory was 133.3 MB in the beginning and 123.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.25 ms. Allocated memory is still 159.4 MB. Free memory was 123.7 MB in the beginning and 122.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 483.14 ms. Allocated memory is still 159.4 MB. Free memory was 122.0 MB in the beginning and 137.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11260.19 ms. Allocated memory was 159.4 MB in the beginning and 342.9 MB in the end (delta: 183.5 MB). Free memory was 137.4 MB in the beginning and 222.1 MB in the end (delta: -84.7 MB). Peak memory consumption was 205.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: 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: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 6]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1037 SDtfs, 1151 SDslu, 154 SDs, 0 SdLazy, 745 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=499occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 218 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 77 LocationsWithAnnotation, 77 PreInvPairs, 965 NumberOfFragments, 2417 HoareAnnotationTreeSize, 77 FomulaSimplifications, 129125 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 77 FomulaSimplificationsInter, 6608 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 525 ConstructedInterpolants, 0 QuantifiedInterpolants, 49115 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...