/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:36:08,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:36:08,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:36:08,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:36:08,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:36:08,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:36:08,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:36:08,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:36:08,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:36:08,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:36:08,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:36:08,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:36:08,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:36:08,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:36:08,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:36:08,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:36:08,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:36:08,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:36:08,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:36:08,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:36:08,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:36:08,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:36:08,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:36:08,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:36:08,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:36:08,990 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:36:08,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:36:08,991 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:36:08,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:36:08,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:36:08,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:36:08,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:36:08,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:36:08,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:36:08,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:36:08,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:36:08,994 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:36:08,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:36:08,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:36:08,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:36:08,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:36:08,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:36:08,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:36:08,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:36:08,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:36:08,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:36:08,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:36:08,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:36:08,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:36:08,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:36:08,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:36:09,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:36:09,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:36:09,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:36:09,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:36:09,560 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:36:09,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-10-23 18:36:09,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d584db26/8733a36a88f14f12af80d3304a492edf/FLAGd916828f3 [2020-10-23 18:36:10,405 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:36:10,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-10-23 18:36:10,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d584db26/8733a36a88f14f12af80d3304a492edf/FLAGd916828f3 [2020-10-23 18:36:10,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d584db26/8733a36a88f14f12af80d3304a492edf [2020-10-23 18:36:10,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:36:10,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:36:10,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:36:10,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:36:10,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:36:10,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:36:10" (1/1) ... [2020-10-23 18:36:10,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba18e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:10, skipping insertion in model container [2020-10-23 18:36:10,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:36:10" (1/1) ... [2020-10-23 18:36:10,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:36:10,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:36:11,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:36:11,274 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:36:11,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:36:11,608 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:36:11,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11 WrapperNode [2020-10-23 18:36:11,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:36:11,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:36:11,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:36:11,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:36:11,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (1/1) ... [2020-10-23 18:36:11,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (1/1) ... [2020-10-23 18:36:11,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (1/1) ... [2020-10-23 18:36:11,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (1/1) ... [2020-10-23 18:36:11,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (1/1) ... [2020-10-23 18:36:11,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (1/1) ... [2020-10-23 18:36:11,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (1/1) ... [2020-10-23 18:36:11,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:36:11,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:36:11,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:36:11,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:36:11,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (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 [2020-10-23 18:36:11,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:36:11,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:36:11,855 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:36:11,855 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:36:11,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:36:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:36:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:36:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:36:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:36:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:36:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:36:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:36:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:36:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:36:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:36:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:36:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:36:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:36:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:36:13,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:36:13,526 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:36:13,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:36:13 BoogieIcfgContainer [2020-10-23 18:36:13,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:36:13,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:36:13,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:36:13,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:36:13,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:36:10" (1/3) ... [2020-10-23 18:36:13,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f337329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:36:13, skipping insertion in model container [2020-10-23 18:36:13,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:36:11" (2/3) ... [2020-10-23 18:36:13,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f337329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:36:13, skipping insertion in model container [2020-10-23 18:36:13,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:36:13" (3/3) ... [2020-10-23 18:36:13,538 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-10-23 18:36:13,552 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:36:13,559 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:36:13,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:36:13,608 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:36:13,608 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:36:13,609 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:36:13,609 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:36:13,609 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:36:13,609 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:36:13,609 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:36:13,610 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:36:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-23 18:36:13,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-23 18:36:13,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:13,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:13,649 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:13,657 INFO L82 PathProgramCache]: Analyzing trace with hash -304725924, now seen corresponding path program 1 times [2020-10-23 18:36:13,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:13,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196412200] [2020-10-23 18:36:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:14,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:14,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196412200] [2020-10-23 18:36:14,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:36:14,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:36:14,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678685479] [2020-10-23 18:36:14,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:36:14,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:14,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:36:14,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:36:14,297 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-23 18:36:16,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:16,532 INFO L93 Difference]: Finished difference Result 601 states and 1028 transitions. [2020-10-23 18:36:16,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:36:16,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-10-23 18:36:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:16,561 INFO L225 Difference]: With dead ends: 601 [2020-10-23 18:36:16,562 INFO L226 Difference]: Without dead ends: 303 [2020-10-23 18:36:16,571 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 [2020-10-23 18:36:16,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-23 18:36:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-23 18:36:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-23 18:36:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 449 transitions. [2020-10-23 18:36:16,659 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 449 transitions. Word has length 68 [2020-10-23 18:36:16,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:16,660 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 449 transitions. [2020-10-23 18:36:16,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:36:16,661 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 449 transitions. [2020-10-23 18:36:16,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-23 18:36:16,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:16,669 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:16,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:36:16,669 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:16,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:16,670 INFO L82 PathProgramCache]: Analyzing trace with hash -2074468320, now seen corresponding path program 1 times [2020-10-23 18:36:16,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:16,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252613369] [2020-10-23 18:36:16,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:17,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:17,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-23 18:36:17,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252613369] [2020-10-23 18:36:17,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70564086] [2020-10-23 18:36:17,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:17,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:36:17,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:17,429 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:17,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:36:17,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-10-23 18:36:17,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227021724] [2020-10-23 18:36:17,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:36:17,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:17,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:36:17,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:36:17,434 INFO L87 Difference]: Start difference. First operand 297 states and 449 transitions. Second operand 3 states. [2020-10-23 18:36:18,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:18,447 INFO L93 Difference]: Finished difference Result 588 states and 901 transitions. [2020-10-23 18:36:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:36:18,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-10-23 18:36:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:18,455 INFO L225 Difference]: With dead ends: 588 [2020-10-23 18:36:18,455 INFO L226 Difference]: Without dead ends: 585 [2020-10-23 18:36:18,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:36:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-10-23 18:36:18,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 297. [2020-10-23 18:36:18,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-23 18:36:18,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 449 transitions. [2020-10-23 18:36:18,532 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 449 transitions. Word has length 138 [2020-10-23 18:36:18,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:18,534 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 449 transitions. [2020-10-23 18:36:18,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:36:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 449 transitions. [2020-10-23 18:36:18,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-23 18:36:18,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:18,546 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:18,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-23 18:36:18,761 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:18,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:18,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1703022932, now seen corresponding path program 1 times [2020-10-23 18:36:18,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:18,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841003675] [2020-10-23 18:36:18,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:18,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:18,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:19,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841003675] [2020-10-23 18:36:19,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:36:19,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:36:19,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693366807] [2020-10-23 18:36:19,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:36:19,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:19,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:36:19,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:19,136 INFO L87 Difference]: Start difference. First operand 297 states and 449 transitions. Second operand 8 states. [2020-10-23 18:36:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:21,373 INFO L93 Difference]: Finished difference Result 753 states and 1158 transitions. [2020-10-23 18:36:21,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:36:21,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-10-23 18:36:21,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:21,383 INFO L225 Difference]: With dead ends: 753 [2020-10-23 18:36:21,383 INFO L226 Difference]: Without dead ends: 462 [2020-10-23 18:36:21,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:36:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-10-23 18:36:21,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 446. [2020-10-23 18:36:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-23 18:36:21,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 627 transitions. [2020-10-23 18:36:21,423 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 627 transitions. Word has length 141 [2020-10-23 18:36:21,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:21,423 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 627 transitions. [2020-10-23 18:36:21,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:36:21,424 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 627 transitions. [2020-10-23 18:36:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-23 18:36:21,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:21,429 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:21,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:36:21,430 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:21,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:21,430 INFO L82 PathProgramCache]: Analyzing trace with hash -2101027064, now seen corresponding path program 1 times [2020-10-23 18:36:21,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:21,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517279763] [2020-10-23 18:36:21,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:21,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:21,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:21,701 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:21,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517279763] [2020-10-23 18:36:21,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:36:21,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:36:21,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354477886] [2020-10-23 18:36:21,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:36:21,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:21,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:36:21,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:36:21,705 INFO L87 Difference]: Start difference. First operand 446 states and 627 transitions. Second operand 7 states. [2020-10-23 18:36:23,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:23,954 INFO L93 Difference]: Finished difference Result 1351 states and 1940 transitions. [2020-10-23 18:36:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 18:36:23,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-10-23 18:36:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:23,962 INFO L225 Difference]: With dead ends: 1351 [2020-10-23 18:36:23,962 INFO L226 Difference]: Without dead ends: 911 [2020-10-23 18:36:23,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:36:23,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-10-23 18:36:24,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 748. [2020-10-23 18:36:24,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-23 18:36:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 974 transitions. [2020-10-23 18:36:24,007 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 974 transitions. Word has length 150 [2020-10-23 18:36:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:24,007 INFO L481 AbstractCegarLoop]: Abstraction has 748 states and 974 transitions. [2020-10-23 18:36:24,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:36:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 974 transitions. [2020-10-23 18:36:24,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-23 18:36:24,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:24,013 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:24,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:36:24,014 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:24,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:24,014 INFO L82 PathProgramCache]: Analyzing trace with hash 604616140, now seen corresponding path program 1 times [2020-10-23 18:36:24,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:24,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991789624] [2020-10-23 18:36:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:24,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:24,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 18:36:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:36:24,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991789624] [2020-10-23 18:36:24,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544095028] [2020-10-23 18:36:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:24,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:36:24,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:24,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:36:24,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-10-23 18:36:24,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816760460] [2020-10-23 18:36:24,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:36:24,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:24,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:36:24,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:36:24,738 INFO L87 Difference]: Start difference. First operand 748 states and 974 transitions. Second operand 10 states. [2020-10-23 18:36:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:28,248 INFO L93 Difference]: Finished difference Result 2114 states and 2877 transitions. [2020-10-23 18:36:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 18:36:28,250 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2020-10-23 18:36:28,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:28,262 INFO L225 Difference]: With dead ends: 2114 [2020-10-23 18:36:28,262 INFO L226 Difference]: Without dead ends: 1372 [2020-10-23 18:36:28,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-23 18:36:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2020-10-23 18:36:28,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1352. [2020-10-23 18:36:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-10-23 18:36:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1766 transitions. [2020-10-23 18:36:28,339 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1766 transitions. Word has length 220 [2020-10-23 18:36:28,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:28,340 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1766 transitions. [2020-10-23 18:36:28,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:36:28,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1766 transitions. [2020-10-23 18:36:28,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-23 18:36:28,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:28,347 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:28,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:28,561 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:28,562 INFO L82 PathProgramCache]: Analyzing trace with hash -731785976, now seen corresponding path program 1 times [2020-10-23 18:36:28,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:28,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976457846] [2020-10-23 18:36:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:28,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:28,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-23 18:36:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 120 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:36:29,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976457846] [2020-10-23 18:36:29,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084085726] [2020-10-23 18:36:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:29,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 18:36:29,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-23 18:36:29,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:36:29,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-10-23 18:36:29,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796706875] [2020-10-23 18:36:29,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:36:29,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:29,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:36:29,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:36:29,526 INFO L87 Difference]: Start difference. First operand 1352 states and 1766 transitions. Second operand 5 states. [2020-10-23 18:36:30,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:30,939 INFO L93 Difference]: Finished difference Result 2869 states and 3748 transitions. [2020-10-23 18:36:30,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:36:30,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 264 [2020-10-23 18:36:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:30,951 INFO L225 Difference]: With dead ends: 2869 [2020-10-23 18:36:30,951 INFO L226 Difference]: Without dead ends: 1523 [2020-10-23 18:36:30,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:36:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-10-23 18:36:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1352. [2020-10-23 18:36:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-10-23 18:36:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1730 transitions. [2020-10-23 18:36:31,058 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1730 transitions. Word has length 264 [2020-10-23 18:36:31,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:31,060 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1730 transitions. [2020-10-23 18:36:31,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:36:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1730 transitions. [2020-10-23 18:36:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-23 18:36:31,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:31,069 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:31,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:31,284 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:31,286 INFO L82 PathProgramCache]: Analyzing trace with hash 696137952, now seen corresponding path program 1 times [2020-10-23 18:36:31,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:31,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992908243] [2020-10-23 18:36:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:31,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:31,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:31,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 18:36:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:36:31,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992908243] [2020-10-23 18:36:31,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398039706] [2020-10-23 18:36:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:31,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:36:31,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:32,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:36:32,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:36:32,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472432225] [2020-10-23 18:36:32,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:36:32,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:32,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:36:32,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:36:32,090 INFO L87 Difference]: Start difference. First operand 1352 states and 1730 transitions. Second operand 10 states. [2020-10-23 18:36:36,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:36,419 INFO L93 Difference]: Finished difference Result 2883 states and 3748 transitions. [2020-10-23 18:36:36,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 18:36:36,420 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 279 [2020-10-23 18:36:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:36,431 INFO L225 Difference]: With dead ends: 2883 [2020-10-23 18:36:36,431 INFO L226 Difference]: Without dead ends: 1680 [2020-10-23 18:36:36,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-10-23 18:36:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2020-10-23 18:36:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1511. [2020-10-23 18:36:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1511 states. [2020-10-23 18:36:36,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1803 transitions. [2020-10-23 18:36:36,496 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1803 transitions. Word has length 279 [2020-10-23 18:36:36,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:36,497 INFO L481 AbstractCegarLoop]: Abstraction has 1511 states and 1803 transitions. [2020-10-23 18:36:36,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:36:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1803 transitions. [2020-10-23 18:36:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-23 18:36:36,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:36,504 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:36,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:36,721 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:36,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:36,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1886011296, now seen corresponding path program 1 times [2020-10-23 18:36:36,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:36,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622500188] [2020-10-23 18:36:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:36,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:36,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-23 18:36:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:37,244 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:36:37,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622500188] [2020-10-23 18:36:37,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200256939] [2020-10-23 18:36:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:37,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:36:37,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:37,564 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:36:37,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:36:37,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-10-23 18:36:37,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008399353] [2020-10-23 18:36:37,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:36:37,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:37,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:36:37,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:36:37,568 INFO L87 Difference]: Start difference. First operand 1511 states and 1803 transitions. Second operand 11 states. [2020-10-23 18:36:42,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:42,047 INFO L93 Difference]: Finished difference Result 4043 states and 4895 transitions. [2020-10-23 18:36:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 18:36:42,054 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 288 [2020-10-23 18:36:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:42,066 INFO L225 Difference]: With dead ends: 4043 [2020-10-23 18:36:42,067 INFO L226 Difference]: Without dead ends: 1938 [2020-10-23 18:36:42,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-23 18:36:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2020-10-23 18:36:42,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1354. [2020-10-23 18:36:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1354 states. [2020-10-23 18:36:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1545 transitions. [2020-10-23 18:36:42,124 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1545 transitions. Word has length 288 [2020-10-23 18:36:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:42,125 INFO L481 AbstractCegarLoop]: Abstraction has 1354 states and 1545 transitions. [2020-10-23 18:36:42,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:36:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1545 transitions. [2020-10-23 18:36:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-23 18:36:42,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:42,134 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:42,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:42,348 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:42,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:42,349 INFO L82 PathProgramCache]: Analyzing trace with hash -305733720, now seen corresponding path program 1 times [2020-10-23 18:36:42,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:42,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162817764] [2020-10-23 18:36:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:42,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:42,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-23 18:36:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-23 18:36:42,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162817764] [2020-10-23 18:36:42,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243166965] [2020-10-23 18:36:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:43,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:36:43,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-23 18:36:43,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:36:43,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:36:43,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295158780] [2020-10-23 18:36:43,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:36:43,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:43,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:36:43,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:43,156 INFO L87 Difference]: Start difference. First operand 1354 states and 1545 transitions. Second operand 3 states. [2020-10-23 18:36:43,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:43,884 INFO L93 Difference]: Finished difference Result 1500 states and 1691 transitions. [2020-10-23 18:36:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:36:43,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2020-10-23 18:36:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:43,893 INFO L225 Difference]: With dead ends: 1500 [2020-10-23 18:36:43,894 INFO L226 Difference]: Without dead ends: 1352 [2020-10-23 18:36:43,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-10-23 18:36:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1352. [2020-10-23 18:36:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-10-23 18:36:43,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1540 transitions. [2020-10-23 18:36:43,943 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1540 transitions. Word has length 324 [2020-10-23 18:36:43,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:43,944 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1540 transitions. [2020-10-23 18:36:43,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:36:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1540 transitions. [2020-10-23 18:36:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-10-23 18:36:43,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:43,954 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:44,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:44,168 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:44,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:44,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1545415428, now seen corresponding path program 1 times [2020-10-23 18:36:44,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:44,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044775744] [2020-10-23 18:36:44,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:44,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:44,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:44,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-23 18:36:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 18:36:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:44,679 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-23 18:36:44,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044775744] [2020-10-23 18:36:44,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127205970] [2020-10-23 18:36:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:44,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-23 18:36:44,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:44,909 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:36:44,911 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:36:44,923 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:44,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:44,935 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:36:44,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:44,979 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:44,997 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:44,999 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:45,006 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:36:45,019 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:36:45,028 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:45,043 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:36:45,051 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:45,071 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:45,090 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:45,092 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:36:45,097 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:36:47,938 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 101 DAG size of output: 37 [2020-10-23 18:36:48,020 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:36:48,214 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-23 18:36:48,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:36:48,221 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:36:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-23 18:36:48,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:36:48,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 11 [2020-10-23 18:36:48,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488222128] [2020-10-23 18:36:48,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:36:48,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:48,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:36:48,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:36:48,497 INFO L87 Difference]: Start difference. First operand 1352 states and 1540 transitions. Second operand 11 states. [2020-10-23 18:36:51,157 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-10-23 18:36:54,008 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-23 18:36:55,321 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-10-23 18:36:56,666 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-23 18:36:57,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:57,394 INFO L93 Difference]: Finished difference Result 4754 states and 5735 transitions. [2020-10-23 18:36:57,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 18:36:57,396 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 379 [2020-10-23 18:36:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:57,413 INFO L225 Difference]: With dead ends: 4754 [2020-10-23 18:36:57,413 INFO L226 Difference]: Without dead ends: 3404 [2020-10-23 18:36:57,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 392 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-10-23 18:36:57,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2020-10-23 18:36:57,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2959. [2020-10-23 18:36:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2020-10-23 18:36:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 3536 transitions. [2020-10-23 18:36:57,535 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 3536 transitions. Word has length 379 [2020-10-23 18:36:57,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:57,536 INFO L481 AbstractCegarLoop]: Abstraction has 2959 states and 3536 transitions. [2020-10-23 18:36:57,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:36:57,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 3536 transitions. [2020-10-23 18:36:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-23 18:36:57,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:36:57,549 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:36:57,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-23 18:36:57,764 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:36:57,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:36:57,765 INFO L82 PathProgramCache]: Analyzing trace with hash 561106952, now seen corresponding path program 1 times [2020-10-23 18:36:57,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:36:57,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719709069] [2020-10-23 18:36:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:36:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:58,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:36:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:58,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:36:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:58,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-23 18:36:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:58,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-23 18:36:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:58,411 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-23 18:36:58,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719709069] [2020-10-23 18:36:58,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202533216] [2020-10-23 18:36:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:36:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:36:58,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:36:58,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:36:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-23 18:36:58,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:36:58,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:36:58,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580487839] [2020-10-23 18:36:58,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:36:58,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:36:58,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:36:58,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:58,783 INFO L87 Difference]: Start difference. First operand 2959 states and 3536 transitions. Second operand 3 states. [2020-10-23 18:36:59,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:36:59,578 INFO L93 Difference]: Finished difference Result 5766 states and 6919 transitions. [2020-10-23 18:36:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:36:59,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 393 [2020-10-23 18:36:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:36:59,580 INFO L225 Difference]: With dead ends: 5766 [2020-10-23 18:36:59,581 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:36:59,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:36:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:36:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:36:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:36:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:36:59,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 393 [2020-10-23 18:36:59,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:36:59,598 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:36:59,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:36:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:36:59,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:36:59,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-23 18:36:59,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:37:00,008 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 185 [2020-10-23 18:37:00,985 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 185 [2020-10-23 18:37:01,164 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 30 [2020-10-23 18:37:01,678 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 41 [2020-10-23 18:37:03,262 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 237 DAG size of output: 50 [2020-10-23 18:37:03,708 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 35 [2020-10-23 18:37:04,282 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 41 [2020-10-23 18:37:04,287 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:37:04,287 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:37:04,287 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:37:04,288 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:37:04,288 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:04,288 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-23 18:37:04,288 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:04,288 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-23 18:37:04,288 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-23 18:37:04,289 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-23 18:37:04,290 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-23 18:37:04,290 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-23 18:37:04,290 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-23 18:37:04,290 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,290 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,290 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-23 18:37:04,291 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-23 18:37:04,292 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-23 18:37:04,293 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-23 18:37:04,294 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-23 18:37:04,294 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,294 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-23 18:37:04,296 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,297 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-23 18:37:04,298 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-23 18:37:04,299 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,300 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-23 18:37:04,301 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,302 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L270 CegarLoopResult]: At program point L189(line 189) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a19~0)| 8))) (.cse1 (not (= 14 ~a4~0))) (.cse2 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 (not (<= 0 (+ |old(~a1~0)| 12))) .cse2) (or (not (<= |old(~a10~0)| 2)) .cse1 .cse2) (or .cse0 (not (<= 4 |old(~a10~0)|)) .cse1 .cse2) (or (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) .cse1 .cse2))) [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-23 18:37:04,303 INFO L274 CegarLoopResult]: For program point L189-1(line 189) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,304 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse5 (= ~a1~0 |old(~a1~0)|)) (.cse6 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (not (<= |old(~a19~0)| 8))) (.cse1 (and .cse5 (= ~a19~0 |old(~a19~0)|) .cse6)) (.cse2 (not (<= 2 |old(~a10~0)|))) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 0 (+ |old(~a1~0)| 12))) .cse4) (or .cse0 .cse2 (not (<= 8 |old(~a19~0)|)) .cse3 (and (<= 8 ~a19~0) (<= ~a19~0 8) .cse5 .cse6) .cse4) (or .cse1 (not (= 9 |old(~a19~0)|)) .cse3 .cse4) (or .cse1 .cse3 (not (<= |old(~a10~0)| 2)) .cse4) (or .cse0 (not (<= 4 |old(~a10~0)|)) .cse1 .cse2 .cse3 .cse4)))) [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-23 18:37:04,305 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-23 18:37:04,306 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,307 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-23 18:37:04,308 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 14 ~a4~0) (<= 9 ~a19~0) (= ~a10~0 0) (= ~a12~0 0) (<= ~a19~0 9) (= 23 ~a1~0)) [2020-10-23 18:37:04,309 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:04,309 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a19~0 9) (= 23 ~a1~0) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0))) [2020-10-23 18:37:04,309 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:04,310 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 2)) (.cse0 (<= ~a19~0 9))) (or (and (<= 8 ~a19~0) .cse0) (and .cse1 .cse0) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= |old(~a10~0)| ~a10~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= 0 (+ ~a1~0 12)) .cse0) (not (= 0 |old(~a10~0)|)) (and (<= 4 ~a10~0) .cse0) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)))) [2020-10-23 18:37:04,310 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-23 18:37:04,310 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-23 18:37:04,310 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 2)) (.cse0 (<= ~a19~0 9))) (or (and (<= 8 ~a19~0) .cse0) (and .cse1 .cse0) (not (<= 9 |old(~a19~0)|)) (and .cse1 (<= |old(~a10~0)| ~a10~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= 0 (+ ~a1~0 12)) .cse0) (not (= 0 |old(~a10~0)|)) (and (<= 4 ~a10~0) .cse0) (not (= 23 |old(~a1~0)|)) (not (= ~a12~0 0)))) [2020-10-23 18:37:04,310 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:04,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:37:04 BoogieIcfgContainer [2020-10-23 18:37:04,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:37:04,336 INFO L168 Benchmark]: Toolchain (without parser) took 53657.92 ms. Allocated memory was 151.0 MB in the beginning and 587.2 MB in the end (delta: 436.2 MB). Free memory was 125.1 MB in the beginning and 433.2 MB in the end (delta: -308.1 MB). Peak memory consumption was 353.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:04,336 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:37:04,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 921.13 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 128.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:04,338 INFO L168 Benchmark]: Boogie Preprocessor took 138.70 ms. Allocated memory is still 151.0 MB. Free memory was 128.3 MB in the beginning and 123.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:04,343 INFO L168 Benchmark]: RCFGBuilder took 1776.84 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 103.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 79.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:04,344 INFO L168 Benchmark]: TraceAbstraction took 50803.55 ms. Allocated memory was 151.0 MB in the beginning and 587.2 MB in the end (delta: 436.2 MB). Free memory was 103.2 MB in the beginning and 433.2 MB in the end (delta: -330.0 MB). Peak memory consumption was 331.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:04,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 151.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 921.13 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 128.3 MB in the end (delta: -3.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 138.70 ms. Allocated memory is still 151.0 MB. Free memory was 128.3 MB in the beginning and 123.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1776.84 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 103.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 79.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 50803.55 ms. Allocated memory was 151.0 MB in the beginning and 587.2 MB in the end (delta: 436.2 MB). Free memory was 103.2 MB in the beginning and 433.2 MB in the end (delta: -330.0 MB). Peak memory consumption was 331.1 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: 584]: Loop Invariant Derived loop invariant: ((((((((((8 <= a19 && a19 <= 9) || (a10 <= 2 && a19 <= 9)) || !(9 <= \old(a19))) || (a10 <= 2 && \old(a10) <= a10)) || !(14 == a4)) || !(\old(a19) <= 9)) || (0 <= a1 + 12 && a19 <= 9)) || !(0 == \old(a10))) || (4 <= a10 && a19 <= 9)) || !(23 == \old(a1))) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 46.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 32.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 473 SDtfs, 5555 SDslu, 435 SDs, 0 SdLazy, 11882 SolverSat, 2046 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2488 GetRequests, 2351 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2959occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 1862 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 199 PreInvPairs, 253 NumberOfFragments, 456 HoareAnnotationTreeSize, 199 FomulaSimplifications, 221535 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11863 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 4929 NumberOfCodeBlocks, 4929 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 4910 ConstructedInterpolants, 6 QuantifiedInterpolants, 3337706 SizeOfPredicates, 8 NumberOfNonLiveVariables, 4251 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 3995/4090 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...