/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/psyco/psyco_security.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:19:13,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:19:13,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:19:13,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 02:19:13,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:19:13,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:19:13,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:19:13,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:19:13,934 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:19:13,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:19:13,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:19:13,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:19:13,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:19:13,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:19:13,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:19:13,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:19:13,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:19:13,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:19:13,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:19:13,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:19:13,939 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:19:13,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:19:13,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:19:13,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:19:13,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:19:13,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:19:13,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:19:13,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:19:14,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:19:14,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:19:14,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:19:14,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:19:14,454 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:19:14,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security.c [2020-10-24 02:19:14,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f1cb905/4619786497384ad19268a4710564a939/FLAGe137cd9a7 [2020-10-24 02:19:15,161 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:19:15,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_security.c [2020-10-24 02:19:15,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f1cb905/4619786497384ad19268a4710564a939/FLAGe137cd9a7 [2020-10-24 02:19:15,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f1cb905/4619786497384ad19268a4710564a939 [2020-10-24 02:19:15,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:19:15,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:19:15,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:19:15,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:19:15,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:19:15,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7411b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15, skipping insertion in model container [2020-10-24 02:19:15,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:19:15,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:19:15,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:19:15,787 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:19:15,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:19:15,846 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:19:15,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15 WrapperNode [2020-10-24 02:19:15,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:19:15,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:19:15,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:19:15,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:19:15,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (1/1) ... [2020-10-24 02:19:15,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:19:15,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:19:15,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:19:15,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:19:15,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (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 [2020-10-24 02:19:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:19:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:19:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:19:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:19:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:19:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:19:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:19:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:19:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:19:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:19:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:19:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:19:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:19:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:19:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:19:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:19:16,700 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:19:16,701 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 02:19:16,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:19:16 BoogieIcfgContainer [2020-10-24 02:19:16,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:19:16,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:19:16,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:19:16,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:19:16,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:19:15" (1/3) ... [2020-10-24 02:19:16,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cebcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:19:16, skipping insertion in model container [2020-10-24 02:19:16,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:19:15" (2/3) ... [2020-10-24 02:19:16,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cebcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:19:16, skipping insertion in model container [2020-10-24 02:19:16,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:19:16" (3/3) ... [2020-10-24 02:19:16,716 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2020-10-24 02:19:16,730 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:19:16,737 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:19:16,750 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:19:16,779 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:19:16,779 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:19:16,779 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:19:16,779 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:19:16,780 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:19:16,780 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:19:16,780 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:19:16,780 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:19:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2020-10-24 02:19:16,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-24 02:19:16,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:16,816 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] [2020-10-24 02:19:16,817 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:16,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:16,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1657313552, now seen corresponding path program 1 times [2020-10-24 02:19:16,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:16,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720054225] [2020-10-24 02:19:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:17,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:19:17,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720054225] [2020-10-24 02:19:17,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:17,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 02:19:17,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530615764] [2020-10-24 02:19:17,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 02:19:17,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:17,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 02:19:17,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:19:17,209 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 3 states. [2020-10-24 02:19:17,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:17,478 INFO L93 Difference]: Finished difference Result 382 states and 521 transitions. [2020-10-24 02:19:17,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 02:19:17,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-24 02:19:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:17,495 INFO L225 Difference]: With dead ends: 382 [2020-10-24 02:19:17,496 INFO L226 Difference]: Without dead ends: 187 [2020-10-24 02:19:17,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:19:17,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-24 02:19:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2020-10-24 02:19:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-24 02:19:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 222 transitions. [2020-10-24 02:19:17,606 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 222 transitions. Word has length 31 [2020-10-24 02:19:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:17,607 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 222 transitions. [2020-10-24 02:19:17,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 02:19:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 222 transitions. [2020-10-24 02:19:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-24 02:19:17,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:17,609 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] [2020-10-24 02:19:17,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:19:17,610 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:17,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1836702352, now seen corresponding path program 1 times [2020-10-24 02:19:17,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:17,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849401029] [2020-10-24 02:19:17,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:17,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:19:17,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849401029] [2020-10-24 02:19:17,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:17,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:19:17,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828507489] [2020-10-24 02:19:17,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:19:17,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:17,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:19:17,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:19:17,777 INFO L87 Difference]: Start difference. First operand 187 states and 222 transitions. Second operand 4 states. [2020-10-24 02:19:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:18,445 INFO L93 Difference]: Finished difference Result 356 states and 427 transitions. [2020-10-24 02:19:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:19:18,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-24 02:19:18,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:18,448 INFO L225 Difference]: With dead ends: 356 [2020-10-24 02:19:18,449 INFO L226 Difference]: Without dead ends: 190 [2020-10-24 02:19:18,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:19:18,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-24 02:19:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-10-24 02:19:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-24 02:19:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2020-10-24 02:19:18,501 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 32 [2020-10-24 02:19:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:18,501 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2020-10-24 02:19:18,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:19:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2020-10-24 02:19:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-24 02:19:18,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:18,504 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:19:18,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:19:18,504 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:18,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:18,505 INFO L82 PathProgramCache]: Analyzing trace with hash 284979922, now seen corresponding path program 1 times [2020-10-24 02:19:18,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:18,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492688107] [2020-10-24 02:19:18,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:18,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:19:18,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492688107] [2020-10-24 02:19:18,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:18,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:19:18,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109609698] [2020-10-24 02:19:18,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:19:18,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:18,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:19:18,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:19:18,625 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand 4 states. [2020-10-24 02:19:19,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:19,152 INFO L93 Difference]: Finished difference Result 363 states and 436 transitions. [2020-10-24 02:19:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:19:19,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-24 02:19:19,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:19,155 INFO L225 Difference]: With dead ends: 363 [2020-10-24 02:19:19,155 INFO L226 Difference]: Without dead ends: 195 [2020-10-24 02:19:19,157 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 [2020-10-24 02:19:19,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-24 02:19:19,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2020-10-24 02:19:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-24 02:19:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 229 transitions. [2020-10-24 02:19:19,205 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 229 transitions. Word has length 41 [2020-10-24 02:19:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:19,205 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 229 transitions. [2020-10-24 02:19:19,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:19:19,206 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 229 transitions. [2020-10-24 02:19:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-24 02:19:19,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:19,208 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:19:19,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:19:19,208 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:19,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1436083999, now seen corresponding path program 1 times [2020-10-24 02:19:19,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:19,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612407079] [2020-10-24 02:19:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:19,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:19:19,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612407079] [2020-10-24 02:19:19,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:19,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 02:19:19,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231722370] [2020-10-24 02:19:19,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 02:19:19,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:19,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 02:19:19,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:19:19,324 INFO L87 Difference]: Start difference. First operand 194 states and 229 transitions. Second operand 6 states. [2020-10-24 02:19:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:20,645 INFO L93 Difference]: Finished difference Result 562 states and 671 transitions. [2020-10-24 02:19:20,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 02:19:20,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-10-24 02:19:20,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:20,649 INFO L225 Difference]: With dead ends: 562 [2020-10-24 02:19:20,649 INFO L226 Difference]: Without dead ends: 372 [2020-10-24 02:19:20,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:19:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-24 02:19:20,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 303. [2020-10-24 02:19:20,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-24 02:19:20,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 368 transitions. [2020-10-24 02:19:20,736 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 368 transitions. Word has length 48 [2020-10-24 02:19:20,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:20,739 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 368 transitions. [2020-10-24 02:19:20,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 02:19:20,739 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 368 transitions. [2020-10-24 02:19:20,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-24 02:19:20,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:20,751 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:19:20,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:19:20,751 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:20,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:20,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1134947826, now seen corresponding path program 1 times [2020-10-24 02:19:20,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:20,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111666579] [2020-10-24 02:19:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:20,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-24 02:19:20,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111666579] [2020-10-24 02:19:20,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:20,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:19:20,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580500995] [2020-10-24 02:19:20,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:19:20,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:20,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:19:20,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:19:20,927 INFO L87 Difference]: Start difference. First operand 303 states and 368 transitions. Second operand 4 states. [2020-10-24 02:19:21,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:21,274 INFO L93 Difference]: Finished difference Result 510 states and 626 transitions. [2020-10-24 02:19:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:19:21,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-10-24 02:19:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:21,277 INFO L225 Difference]: With dead ends: 510 [2020-10-24 02:19:21,277 INFO L226 Difference]: Without dead ends: 229 [2020-10-24 02:19:21,278 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 [2020-10-24 02:19:21,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-24 02:19:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-10-24 02:19:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-24 02:19:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 274 transitions. [2020-10-24 02:19:21,325 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 274 transitions. Word has length 52 [2020-10-24 02:19:21,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:21,326 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 274 transitions. [2020-10-24 02:19:21,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:19:21,326 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 274 transitions. [2020-10-24 02:19:21,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-24 02:19:21,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:21,328 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:19:21,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 02:19:21,328 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:21,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1955113173, now seen corresponding path program 1 times [2020-10-24 02:19:21,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:21,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653462335] [2020-10-24 02:19:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:21,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:21,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-24 02:19:21,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653462335] [2020-10-24 02:19:21,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:21,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:19:21,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550713272] [2020-10-24 02:19:21,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:19:21,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:21,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:19:21,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:19:21,432 INFO L87 Difference]: Start difference. First operand 229 states and 274 transitions. Second operand 4 states. [2020-10-24 02:19:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:21,979 INFO L93 Difference]: Finished difference Result 424 states and 512 transitions. [2020-10-24 02:19:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:19:21,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2020-10-24 02:19:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:21,981 INFO L225 Difference]: With dead ends: 424 [2020-10-24 02:19:21,982 INFO L226 Difference]: Without dead ends: 253 [2020-10-24 02:19:21,983 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 [2020-10-24 02:19:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-24 02:19:22,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2020-10-24 02:19:22,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-24 02:19:22,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 269 transitions. [2020-10-24 02:19:22,023 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 269 transitions. Word has length 60 [2020-10-24 02:19:22,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:22,023 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 269 transitions. [2020-10-24 02:19:22,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:19:22,024 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 269 transitions. [2020-10-24 02:19:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-24 02:19:22,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:22,025 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:19:22,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 02:19:22,025 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:22,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:22,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1528310168, now seen corresponding path program 1 times [2020-10-24 02:19:22,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:22,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075132750] [2020-10-24 02:19:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:22,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-24 02:19:22,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075132750] [2020-10-24 02:19:22,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:22,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:19:22,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093222490] [2020-10-24 02:19:22,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:19:22,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:22,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:19:22,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:19:22,135 INFO L87 Difference]: Start difference. First operand 232 states and 269 transitions. Second operand 4 states. [2020-10-24 02:19:22,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:22,570 INFO L93 Difference]: Finished difference Result 375 states and 440 transitions. [2020-10-24 02:19:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:19:22,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-10-24 02:19:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:22,572 INFO L225 Difference]: With dead ends: 375 [2020-10-24 02:19:22,573 INFO L226 Difference]: Without dead ends: 204 [2020-10-24 02:19:22,574 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 [2020-10-24 02:19:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-24 02:19:22,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 203. [2020-10-24 02:19:22,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-24 02:19:22,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 232 transitions. [2020-10-24 02:19:22,608 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 232 transitions. Word has length 61 [2020-10-24 02:19:22,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:22,608 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 232 transitions. [2020-10-24 02:19:22,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:19:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 232 transitions. [2020-10-24 02:19:22,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-24 02:19:22,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:22,610 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:19:22,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 02:19:22,610 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:22,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:22,611 INFO L82 PathProgramCache]: Analyzing trace with hash 62921447, now seen corresponding path program 1 times [2020-10-24 02:19:22,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:22,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289788668] [2020-10-24 02:19:22,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:22,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-24 02:19:22,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289788668] [2020-10-24 02:19:22,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:22,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:19:22,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058611261] [2020-10-24 02:19:22,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:19:22,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:22,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:19:22,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:19:22,706 INFO L87 Difference]: Start difference. First operand 203 states and 232 transitions. Second operand 4 states. [2020-10-24 02:19:23,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:23,114 INFO L93 Difference]: Finished difference Result 304 states and 349 transitions. [2020-10-24 02:19:23,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:19:23,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-24 02:19:23,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:23,116 INFO L225 Difference]: With dead ends: 304 [2020-10-24 02:19:23,116 INFO L226 Difference]: Without dead ends: 162 [2020-10-24 02:19:23,117 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 [2020-10-24 02:19:23,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-24 02:19:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-24 02:19:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-24 02:19:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 180 transitions. [2020-10-24 02:19:23,145 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 180 transitions. Word has length 63 [2020-10-24 02:19:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:23,145 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 180 transitions. [2020-10-24 02:19:23,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:19:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 180 transitions. [2020-10-24 02:19:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-24 02:19:23,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:19:23,147 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:19:23,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 02:19:23,147 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:19:23,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:19:23,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1874953403, now seen corresponding path program 1 times [2020-10-24 02:19:23,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:19:23,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204880872] [2020-10-24 02:19:23,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:19:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:23,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:19:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:19:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-24 02:19:23,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204880872] [2020-10-24 02:19:23,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:19:23,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 02:19:23,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218357659] [2020-10-24 02:19:23,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 02:19:23,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:19:23,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 02:19:23,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 02:19:23,236 INFO L87 Difference]: Start difference. First operand 162 states and 180 transitions. Second operand 4 states. [2020-10-24 02:19:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:19:23,610 INFO L93 Difference]: Finished difference Result 252 states and 284 transitions. [2020-10-24 02:19:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 02:19:23,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-24 02:19:23,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:19:23,612 INFO L225 Difference]: With dead ends: 252 [2020-10-24 02:19:23,612 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:19:23,613 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 [2020-10-24 02:19:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:19:23,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:19:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:19:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:19:23,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2020-10-24 02:19:23,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:19:23,615 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:19:23,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 02:19:23,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:19:23,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:19:23,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 02:19:23,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:19:26,435 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 16 [2020-10-24 02:19:26,952 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 17 [2020-10-24 02:19:28,343 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 16 [2020-10-24 02:19:30,378 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 12 [2020-10-24 02:19:30,902 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 17 [2020-10-24 02:19:30,909 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,909 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,909 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,910 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,910 INFO L277 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,910 INFO L277 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,910 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,910 INFO L277 CegarLoopResult]: At program point L4-5(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,911 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,911 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,911 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-24 02:19:30,911 INFO L277 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-10-24 02:19:30,911 INFO L277 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-10-24 02:19:30,911 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~m_update~0 |old(~m_update~0)|) (= ~m_initSign~0 |old(~m_initSign~0)|) (= |old(#length)| |#length|) (= ~m_sign~0 |old(~m_sign~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~m_verify~0 |old(~m_verify~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~m_Signature~0 |old(~m_Signature~0)|) (= ~m_initVerify~0 |old(~m_initVerify~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,912 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,913 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:19:30,913 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 15 392) the Hoare annotation is: true [2020-10-24 02:19:30,913 INFO L270 CegarLoopResult]: At program point L366(line 366) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,913 INFO L270 CegarLoopResult]: At program point L366-1(lines 366 381) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,913 INFO L270 CegarLoopResult]: At program point L366-2(line 366) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,913 INFO L270 CegarLoopResult]: At program point L366-3(line 366) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,913 INFO L270 CegarLoopResult]: At program point L234(line 234) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,914 INFO L270 CegarLoopResult]: At program point L234-1(lines 234 249) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,914 INFO L270 CegarLoopResult]: At program point L168(lines 168 179) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,914 INFO L270 CegarLoopResult]: At program point L234-2(line 234) the Hoare annotation is: (and (<= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,914 INFO L270 CegarLoopResult]: At program point L234-3(line 234) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,914 INFO L270 CegarLoopResult]: At program point L102(line 102) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,914 INFO L270 CegarLoopResult]: At program point L102-1(lines 102 117) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,914 INFO L270 CegarLoopResult]: At program point L36(lines 36 38) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,915 INFO L270 CegarLoopResult]: At program point L102-2(line 102) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,915 INFO L270 CegarLoopResult]: At program point L102-3(line 102) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,915 INFO L270 CegarLoopResult]: At program point L334(line 334) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,915 INFO L270 CegarLoopResult]: At program point L334-1(lines 334 349) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,915 INFO L270 CegarLoopResult]: At program point L268(lines 268 279) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,915 INFO L270 CegarLoopResult]: At program point L334-2(line 334) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,916 INFO L270 CegarLoopResult]: At program point L334-3(line 334) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,916 INFO L270 CegarLoopResult]: At program point L202(line 202) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,916 INFO L270 CegarLoopResult]: At program point L202-1(lines 202 217) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,916 INFO L270 CegarLoopResult]: At program point L136(lines 136 147) the Hoare annotation is: (and (not (= 2 main_~this_state~0)) (= main_~q~0 2)) [2020-10-24 02:19:30,916 INFO L270 CegarLoopResult]: At program point L202-2(line 202) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,916 INFO L270 CegarLoopResult]: At program point L202-3(line 202) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,917 INFO L270 CegarLoopResult]: At program point L368(lines 368 379) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,917 INFO L270 CegarLoopResult]: At program point L302(line 302) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,917 INFO L270 CegarLoopResult]: At program point L302-1(lines 302 317) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,917 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 15 392) the Hoare annotation is: true [2020-10-24 02:19:30,917 INFO L270 CegarLoopResult]: At program point L236(lines 236 247) the Hoare annotation is: (and (<= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,917 INFO L270 CegarLoopResult]: At program point L302-2(line 302) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,918 INFO L270 CegarLoopResult]: At program point L302-3(line 302) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,918 INFO L270 CegarLoopResult]: At program point L104(lines 104 115) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,918 INFO L270 CegarLoopResult]: At program point L336(lines 336 347) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,918 INFO L270 CegarLoopResult]: At program point L270(line 270) the Hoare annotation is: false [2020-10-24 02:19:30,918 INFO L270 CegarLoopResult]: At program point L204(lines 204 215) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,918 INFO L270 CegarLoopResult]: At program point L72(lines 72 74) the Hoare annotation is: false [2020-10-24 02:19:30,918 INFO L270 CegarLoopResult]: At program point L370(line 370) the Hoare annotation is: false [2020-10-24 02:19:30,919 INFO L270 CegarLoopResult]: At program point L304(lines 304 315) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,919 INFO L270 CegarLoopResult]: At program point L172(lines 172 174) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,919 INFO L270 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,919 INFO L270 CegarLoopResult]: At program point L272(lines 272 274) the Hoare annotation is: false [2020-10-24 02:19:30,919 INFO L270 CegarLoopResult]: At program point L140(lines 140 142) the Hoare annotation is: (and (not (= 2 main_~this_state~0)) (= main_~q~0 2)) [2020-10-24 02:19:30,919 INFO L270 CegarLoopResult]: At program point L372(lines 372 374) the Hoare annotation is: false [2020-10-24 02:19:30,919 INFO L270 CegarLoopResult]: At program point L240(lines 240 242) the Hoare annotation is: (and (<= 3 main_~q~0) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,920 INFO L270 CegarLoopResult]: At program point L108(lines 108 110) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,920 INFO L270 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,920 INFO L270 CegarLoopResult]: At program point L373(lines 15 392) the Hoare annotation is: false [2020-10-24 02:19:30,920 INFO L270 CegarLoopResult]: At program point L340(lines 340 342) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,920 INFO L270 CegarLoopResult]: At program point L208(lines 208 210) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,920 INFO L277 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: true [2020-10-24 02:19:30,920 INFO L270 CegarLoopResult]: At program point L308(lines 308 310) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,920 INFO L277 CegarLoopResult]: At program point L176(line 176) the Hoare annotation is: true [2020-10-24 02:19:30,921 INFO L270 CegarLoopResult]: At program point L276(line 276) the Hoare annotation is: false [2020-10-24 02:19:30,921 INFO L277 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: true [2020-10-24 02:19:30,921 INFO L270 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: false [2020-10-24 02:19:30,921 INFO L277 CegarLoopResult]: At program point L244(line 244) the Hoare annotation is: true [2020-10-24 02:19:30,921 INFO L270 CegarLoopResult]: At program point L112(line 112) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,921 INFO L270 CegarLoopResult]: At program point L344(line 344) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,921 INFO L270 CegarLoopResult]: At program point L278(line 278) the Hoare annotation is: false [2020-10-24 02:19:30,921 INFO L270 CegarLoopResult]: At program point L212(line 212) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,922 INFO L270 CegarLoopResult]: At program point L378(line 378) the Hoare annotation is: false [2020-10-24 02:19:30,922 INFO L270 CegarLoopResult]: At program point L312(line 312) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,922 INFO L270 CegarLoopResult]: At program point L114(line 114) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,922 INFO L270 CegarLoopResult]: At program point L346(line 346) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,922 INFO L270 CegarLoopResult]: At program point L214(line 214) the Hoare annotation is: (<= 4 main_~q~0) [2020-10-24 02:19:30,922 INFO L270 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: false [2020-10-24 02:19:30,922 INFO L270 CegarLoopResult]: At program point L49(lines 49 100) the Hoare annotation is: (or (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-10-24 02:19:30,923 INFO L270 CegarLoopResult]: At program point L82-1(lines 82 97) the Hoare annotation is: false [2020-10-24 02:19:30,923 INFO L270 CegarLoopResult]: At program point L82-2(line 82) the Hoare annotation is: false [2020-10-24 02:19:30,923 INFO L270 CegarLoopResult]: At program point L82-3(line 82) the Hoare annotation is: false [2020-10-24 02:19:30,923 INFO L270 CegarLoopResult]: At program point L314(line 314) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,923 INFO L270 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: false [2020-10-24 02:19:30,923 INFO L270 CegarLoopResult]: At program point L50-1(lines 50 65) the Hoare annotation is: false [2020-10-24 02:19:30,923 INFO L270 CegarLoopResult]: At program point L50-2(line 50) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L50-3(line 50) the Hoare annotation is: false [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L150(line 150) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L150-1(lines 150 165) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L84(lines 84 95) the Hoare annotation is: false [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L150-2(line 150) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L150-3(line 150) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,924 INFO L270 CegarLoopResult]: At program point L250(line 250) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L250-1(lines 250 265) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L250-2(line 250) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L250-3(line 250) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L118(line 118) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L118-1(lines 118 133) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L52(lines 52 63) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L118-2(line 118) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,925 INFO L270 CegarLoopResult]: At program point L118-3(line 118) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,926 INFO L270 CegarLoopResult]: At program point L383(lines 24 387) the Hoare annotation is: (or (= main_~q~0 0) (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-10-24 02:19:30,926 INFO L270 CegarLoopResult]: At program point L350(line 350) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,926 INFO L270 CegarLoopResult]: At program point L350-1(lines 350 365) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,926 INFO L270 CegarLoopResult]: At program point L350-2(line 350) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,926 INFO L270 CegarLoopResult]: At program point L350-3(line 350) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,926 INFO L270 CegarLoopResult]: At program point L218(line 218) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,926 INFO L270 CegarLoopResult]: At program point L185(lines 185 284) the Hoare annotation is: (or (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-10-24 02:19:30,927 INFO L270 CegarLoopResult]: At program point L218-1(lines 218 233) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,927 INFO L270 CegarLoopResult]: At program point L152(lines 152 163) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,927 INFO L270 CegarLoopResult]: At program point L218-2(line 218) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,927 INFO L270 CegarLoopResult]: At program point L218-3(line 218) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,927 INFO L270 CegarLoopResult]: At program point L318(line 318) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,927 INFO L270 CegarLoopResult]: At program point L285(lines 285 384) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,928 INFO L270 CegarLoopResult]: At program point L318-1(lines 318 333) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,928 INFO L270 CegarLoopResult]: At program point L252(lines 252 263) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,928 INFO L270 CegarLoopResult]: At program point L318-2(line 318) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2020-10-24 02:19:30,928 INFO L270 CegarLoopResult]: At program point L318-3(line 318) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,928 INFO L270 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,928 INFO L270 CegarLoopResult]: At program point L186-1(lines 186 201) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,928 INFO L270 CegarLoopResult]: At program point L120(lines 120 131) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,929 INFO L270 CegarLoopResult]: At program point L186-2(line 186) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,929 INFO L270 CegarLoopResult]: At program point L186-3(line 186) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,929 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,929 INFO L270 CegarLoopResult]: At program point L352(lines 352 363) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,929 INFO L270 CegarLoopResult]: At program point L286(line 286) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,929 INFO L270 CegarLoopResult]: At program point L286-1(lines 286 301) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,929 INFO L270 CegarLoopResult]: At program point L220(lines 220 231) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L286-2(line 286) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L286-3(line 286) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L88(lines 88 90) the Hoare annotation is: false [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L320(lines 320 331) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L254(line 254) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L188(lines 188 199) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L56(lines 56 58) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2020-10-24 02:19:30,930 INFO L270 CegarLoopResult]: At program point L354(line 354) the Hoare annotation is: false [2020-10-24 02:19:30,931 INFO L270 CegarLoopResult]: At program point L288(lines 288 299) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,931 INFO L270 CegarLoopResult]: At program point L156(lines 156 158) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,931 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (not (= 2 main_~this_state~0)) (= main_~q~0 0)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-10-24 02:19:30,931 INFO L277 CegarLoopResult]: At program point L24-3(lines 24 387) the Hoare annotation is: true [2020-10-24 02:19:30,931 INFO L270 CegarLoopResult]: At program point L256(lines 256 258) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,931 INFO L270 CegarLoopResult]: At program point L124(lines 124 126) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,931 INFO L270 CegarLoopResult]: At program point L356(lines 356 358) the Hoare annotation is: false [2020-10-24 02:19:30,931 INFO L270 CegarLoopResult]: At program point L224(lines 224 226) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,932 INFO L277 CegarLoopResult]: At program point L92(line 92) the Hoare annotation is: true [2020-10-24 02:19:30,932 INFO L270 CegarLoopResult]: At program point L324(lines 324 326) the Hoare annotation is: (not (= 2 main_~this_state~0)) [2020-10-24 02:19:30,932 INFO L270 CegarLoopResult]: At program point L192(lines 192 194) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,932 INFO L277 CegarLoopResult]: At program point L60(line 60) the Hoare annotation is: true [2020-10-24 02:19:30,932 INFO L270 CegarLoopResult]: At program point L391(line 391) the Hoare annotation is: false [2020-10-24 02:19:30,932 INFO L270 CegarLoopResult]: At program point L292(lines 292 294) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,932 INFO L277 CegarLoopResult]: At program point L160(line 160) the Hoare annotation is: true [2020-10-24 02:19:30,932 INFO L270 CegarLoopResult]: At program point L260(line 260) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,933 INFO L270 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (= main_~q~0 2) [2020-10-24 02:19:30,933 INFO L270 CegarLoopResult]: At program point L29(lines 29 48) the Hoare annotation is: (or (= main_~q~0 0) (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-10-24 02:19:30,934 INFO L270 CegarLoopResult]: At program point L360(line 360) the Hoare annotation is: false [2020-10-24 02:19:30,934 INFO L270 CegarLoopResult]: At program point L228(line 228) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,934 INFO L270 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,934 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 15 392) the Hoare annotation is: true [2020-10-24 02:19:30,934 INFO L270 CegarLoopResult]: At program point L30-1(lines 30 45) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,934 INFO L270 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,934 INFO L270 CegarLoopResult]: At program point L30-3(line 30) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,935 INFO L277 CegarLoopResult]: At program point L328(line 328) the Hoare annotation is: true [2020-10-24 02:19:30,935 INFO L270 CegarLoopResult]: At program point L262(line 262) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,935 INFO L270 CegarLoopResult]: At program point L196(line 196) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,935 INFO L270 CegarLoopResult]: At program point L130(line 130) the Hoare annotation is: (<= 4 main_~q~0) [2020-10-24 02:19:30,935 INFO L270 CegarLoopResult]: At program point L362(line 362) the Hoare annotation is: false [2020-10-24 02:19:30,935 INFO L270 CegarLoopResult]: At program point L296(line 296) the Hoare annotation is: (and (<= 4 main_~q~0) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,935 INFO L270 CegarLoopResult]: At program point L230(line 230) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,935 INFO L270 CegarLoopResult]: At program point L32(lines 32 43) the Hoare annotation is: (= main_~q~0 0) [2020-10-24 02:19:30,936 INFO L270 CegarLoopResult]: At program point L198(line 198) the Hoare annotation is: (= main_~q~0 3) [2020-10-24 02:19:30,936 INFO L270 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: false [2020-10-24 02:19:30,936 INFO L270 CegarLoopResult]: At program point L66-1(lines 66 81) the Hoare annotation is: false [2020-10-24 02:19:30,936 INFO L270 CegarLoopResult]: At program point L66-2(line 66) the Hoare annotation is: false [2020-10-24 02:19:30,937 INFO L270 CegarLoopResult]: At program point L66-3(line 66) the Hoare annotation is: false [2020-10-24 02:19:30,937 INFO L270 CegarLoopResult]: At program point L298(line 298) the Hoare annotation is: (and (= main_~q~0 3) (= 3 main_~this_state~0)) [2020-10-24 02:19:30,937 INFO L270 CegarLoopResult]: At program point L166(line 166) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,937 INFO L270 CegarLoopResult]: At program point L166-1(lines 166 181) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L166-2(line 166) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L166-3(line 166) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L266(line 266) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L266-1(lines 266 281) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L266-2(line 266) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L266-3(line 266) the Hoare annotation is: (and (= main_~q~0 3) (= 2 main_~this_state~0)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L134(line 134) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,938 INFO L270 CegarLoopResult]: At program point L101(lines 101 184) the Hoare annotation is: (or (and (= main_~q~0 3) (= 2 main_~this_state~0)) (and (= 0 main_~this_state~0) (= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-10-24 02:19:30,939 INFO L270 CegarLoopResult]: At program point L134-1(lines 134 149) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,939 INFO L270 CegarLoopResult]: At program point L68(lines 68 79) the Hoare annotation is: false [2020-10-24 02:19:30,939 INFO L270 CegarLoopResult]: At program point L134-2(line 134) the Hoare annotation is: (and (not (= 2 main_~this_state~0)) (= main_~q~0 2)) [2020-10-24 02:19:30,939 INFO L270 CegarLoopResult]: At program point L134-3(line 134) the Hoare annotation is: (and (= 0 main_~this_state~0) (= main_~q~0 2)) [2020-10-24 02:19:30,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:19:30 BoogieIcfgContainer [2020-10-24 02:19:30,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:19:30,966 INFO L168 Benchmark]: Toolchain (without parser) took 15440.79 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 127.2 MB in the beginning and 217.6 MB in the end (delta: -90.4 MB). Peak memory consumption was 188.8 MB. Max. memory is 8.0 GB. [2020-10-24 02:19:30,967 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 120.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:19:30,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.13 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 115.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:19:30,969 INFO L168 Benchmark]: Boogie Preprocessor took 55.10 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 113.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 02:19:30,970 INFO L168 Benchmark]: RCFGBuilder took 799.26 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 108.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2020-10-24 02:19:30,971 INFO L168 Benchmark]: TraceAbstraction took 14258.72 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 107.7 MB in the beginning and 217.6 MB in the end (delta: -109.9 MB). Peak memory consumption was 168.0 MB. Max. memory is 8.0 GB. [2020-10-24 02:19:30,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 120.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 312.13 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 115.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 55.10 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 113.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 799.26 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 108.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14258.72 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 107.7 MB in the beginning and 217.6 MB in the end (delta: -109.9 MB). Peak memory consumption was 168.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (!(2 == this_state) && q == 0) || (4 <= q && 3 == this_state) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((q == 0 || (q == 3 && 2 == this_state)) || (0 == this_state && q == 2)) || (4 <= q && 3 == this_state) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 4]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 15]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 203 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1882 SDtfs, 2423 SDslu, 204 SDs, 0 SdLazy, 1588 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=303occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 92 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 203 LocationsWithAnnotation, 235 PreInvPairs, 399 NumberOfFragments, 1027 HoareAnnotationTreeSize, 235 FomulaSimplifications, 9392 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 203 FomulaSimplificationsInter, 8382 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 54481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 43/43 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...