/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/Problem02_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:33:50,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:33:50,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:33:50,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:33:50,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:33:50,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:33:50,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:33:50,274 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 18:33:50,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:33:50,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:33:50,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:33:50,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:33:50,335 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:33:50,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:33:50,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:33:50,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:33:50,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:33:50,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:33:50,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:33:50,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:33:50,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:33:50,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:33:50,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:33:50,340 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:33:50,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:33:50,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:33:50,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:33:50,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:33:50,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:33:50,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:33:50,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:33:50,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:33:50,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:33:50,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:33:50,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:33:50,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:33:50,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:33:50,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:33:50,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:33:50,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:33:50,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:33:50,859 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:33:50,860 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:33:50,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-10-23 18:33:50,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82741110/a4e5b8afb0724bcca81d33c7db1e9036/FLAG2bb25a0e0 [2020-10-23 18:33:51,751 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:33:51,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-10-23 18:33:51,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82741110/a4e5b8afb0724bcca81d33c7db1e9036/FLAG2bb25a0e0 [2020-10-23 18:33:51,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82741110/a4e5b8afb0724bcca81d33c7db1e9036 [2020-10-23 18:33:51,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:33:51,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:33:51,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:33:51,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:33:52,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:33:52,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:33:51" (1/1) ... [2020-10-23 18:33:52,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ffe4bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52, skipping insertion in model container [2020-10-23 18:33:52,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:33:51" (1/1) ... [2020-10-23 18:33:52,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:33:52,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:33:52,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:33:52,544 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:33:52,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:33:52,736 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:33:52,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52 WrapperNode [2020-10-23 18:33:52,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:33:52,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:33:52,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:33:52,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:33:52,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (1/1) ... [2020-10-23 18:33:52,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (1/1) ... [2020-10-23 18:33:52,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (1/1) ... [2020-10-23 18:33:52,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (1/1) ... [2020-10-23 18:33:52,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (1/1) ... [2020-10-23 18:33:52,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (1/1) ... [2020-10-23 18:33:52,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (1/1) ... [2020-10-23 18:33:52,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:33:52,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:33:52,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:33:52,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:33:52,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (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 18:33:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:33:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:33:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:33:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:33:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:33:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:33:53,052 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:33:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:33:53,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:33:53,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:33:54,511 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:33:54,511 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:33:54,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:33:54 BoogieIcfgContainer [2020-10-23 18:33:54,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:33:54,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:33:54,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:33:54,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:33:54,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:33:51" (1/3) ... [2020-10-23 18:33:54,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d300ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:33:54, skipping insertion in model container [2020-10-23 18:33:54,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:33:52" (2/3) ... [2020-10-23 18:33:54,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d300ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:33:54, skipping insertion in model container [2020-10-23 18:33:54,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:33:54" (3/3) ... [2020-10-23 18:33:54,523 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-10-23 18:33:54,535 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:33:54,541 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:33:54,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:33:54,590 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:33:54,590 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:33:54,590 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:33:54,590 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:33:54,591 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:33:54,591 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:33:54,591 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:33:54,591 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:33:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-23 18:33:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-23 18:33:54,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:54,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:54,638 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:54,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1051683155, now seen corresponding path program 1 times [2020-10-23 18:33:54,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:54,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096468091] [2020-10-23 18:33:54,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:33:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:33:55,522 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 18:33:55,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096468091] [2020-10-23 18:33:55,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:33:55,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:33:55,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111587072] [2020-10-23 18:33:55,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:33:55,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:33:55,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:33:55,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:33:55,564 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 5 states. [2020-10-23 18:33:55,738 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:33:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:33:59,552 INFO L93 Difference]: Finished difference Result 790 states and 1386 transitions. [2020-10-23 18:33:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:33:59,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-23 18:33:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:33:59,580 INFO L225 Difference]: With dead ends: 790 [2020-10-23 18:33:59,580 INFO L226 Difference]: Without dead ends: 482 [2020-10-23 18:33:59,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:33:59,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-23 18:33:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 473. [2020-10-23 18:33:59,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-10-23 18:33:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 644 transitions. [2020-10-23 18:33:59,756 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 644 transitions. Word has length 143 [2020-10-23 18:33:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:33:59,760 INFO L481 AbstractCegarLoop]: Abstraction has 473 states and 644 transitions. [2020-10-23 18:33:59,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:33:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 644 transitions. [2020-10-23 18:33:59,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-23 18:33:59,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:33:59,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:33:59,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:33:59,787 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:33:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:33:59,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1231991634, now seen corresponding path program 1 times [2020-10-23 18:33:59,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:33:59,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455970742] [2020-10-23 18:33:59,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:33:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:00,246 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 18:34:00,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:00,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:00,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455970742] [2020-10-23 18:34:00,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855319806] [2020-10-23 18:34:00,480 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 18:34:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:00,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:34:00,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:01,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:34:01,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:34:01,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047289024] [2020-10-23 18:34:01,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:34:01,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:01,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:34:01,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:34:01,037 INFO L87 Difference]: Start difference. First operand 473 states and 644 transitions. Second operand 3 states. [2020-10-23 18:34:02,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:02,139 INFO L93 Difference]: Finished difference Result 1378 states and 1907 transitions. [2020-10-23 18:34:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:34:02,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-10-23 18:34:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:02,150 INFO L225 Difference]: With dead ends: 1378 [2020-10-23 18:34:02,151 INFO L226 Difference]: Without dead ends: 911 [2020-10-23 18:34:02,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:34:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-10-23 18:34:02,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 765. [2020-10-23 18:34:02,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-10-23 18:34:02,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1092 transitions. [2020-10-23 18:34:02,220 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1092 transitions. Word has length 152 [2020-10-23 18:34:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:02,221 INFO L481 AbstractCegarLoop]: Abstraction has 765 states and 1092 transitions. [2020-10-23 18:34:02,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:34:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1092 transitions. [2020-10-23 18:34:02,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-23 18:34:02,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:02,227 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:02,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-23 18:34:02,441 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:02,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:02,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1675165891, now seen corresponding path program 1 times [2020-10-23 18:34:02,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:02,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715332680] [2020-10-23 18:34:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:02,753 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 18:34:02,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:02,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:02,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 18:34:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:02,944 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:34:02,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715332680] [2020-10-23 18:34:02,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191998537] [2020-10-23 18:34:02,947 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 18:34:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:03,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:34:03,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:03,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:34:03,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-10-23 18:34:03,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553430510] [2020-10-23 18:34:03,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:34:03,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:03,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:34:03,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:34:03,347 INFO L87 Difference]: Start difference. First operand 765 states and 1092 transitions. Second operand 10 states. [2020-10-23 18:34:03,492 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:34:05,324 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:34:06,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:06,238 INFO L93 Difference]: Finished difference Result 1846 states and 2717 transitions. [2020-10-23 18:34:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:34:06,239 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 174 [2020-10-23 18:34:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:06,248 INFO L225 Difference]: With dead ends: 1846 [2020-10-23 18:34:06,248 INFO L226 Difference]: Without dead ends: 1087 [2020-10-23 18:34:06,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:34:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2020-10-23 18:34:06,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 923. [2020-10-23 18:34:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-10-23 18:34:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1294 transitions. [2020-10-23 18:34:06,304 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1294 transitions. Word has length 174 [2020-10-23 18:34:06,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:06,304 INFO L481 AbstractCegarLoop]: Abstraction has 923 states and 1294 transitions. [2020-10-23 18:34:06,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:34:06,305 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1294 transitions. [2020-10-23 18:34:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 18:34:06,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:06,310 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:06,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:06,525 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:06,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:06,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1173864709, now seen corresponding path program 1 times [2020-10-23 18:34:06,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:06,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438491380] [2020-10-23 18:34:06,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:06,973 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 18:34:06,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:07,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:07,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:34:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:34:07,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438491380] [2020-10-23 18:34:07,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559919064] [2020-10-23 18:34:07,407 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 18:34:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:07,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:34:07,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:34:07,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:34:07,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:34:07,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662921976] [2020-10-23 18:34:07,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:34:07,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:07,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:34:07,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:34:07,728 INFO L87 Difference]: Start difference. First operand 923 states and 1294 transitions. Second operand 3 states. [2020-10-23 18:34:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:08,775 INFO L93 Difference]: Finished difference Result 2729 states and 3939 transitions. [2020-10-23 18:34:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:34:08,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-10-23 18:34:08,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:08,795 INFO L225 Difference]: With dead ends: 2729 [2020-10-23 18:34:08,795 INFO L226 Difference]: Without dead ends: 1812 [2020-10-23 18:34:08,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:34:08,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2020-10-23 18:34:08,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1519. [2020-10-23 18:34:08,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2020-10-23 18:34:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2014 transitions. [2020-10-23 18:34:08,901 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2014 transitions. Word has length 178 [2020-10-23 18:34:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:08,903 INFO L481 AbstractCegarLoop]: Abstraction has 1519 states and 2014 transitions. [2020-10-23 18:34:08,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:34:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2014 transitions. [2020-10-23 18:34:08,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-23 18:34:08,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:08,913 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:09,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:09,128 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:09,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:09,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1048591632, now seen corresponding path program 1 times [2020-10-23 18:34:09,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:09,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977514703] [2020-10-23 18:34:09,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:09,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:09,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:09,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 18:34:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 18:34:09,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977514703] [2020-10-23 18:34:09,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769273650] [2020-10-23 18:34:09,530 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 18:34:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:09,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:34:09,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:09,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:34:09,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-10-23 18:34:09,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455261566] [2020-10-23 18:34:09,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:34:09,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:09,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:34:09,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:34:09,872 INFO L87 Difference]: Start difference. First operand 1519 states and 2014 transitions. Second operand 7 states. [2020-10-23 18:34:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:12,329 INFO L93 Difference]: Finished difference Result 3078 states and 4218 transitions. [2020-10-23 18:34:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:34:12,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-23 18:34:12,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:12,341 INFO L225 Difference]: With dead ends: 3078 [2020-10-23 18:34:12,341 INFO L226 Difference]: Without dead ends: 1565 [2020-10-23 18:34:12,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:34:12,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2020-10-23 18:34:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1387. [2020-10-23 18:34:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2020-10-23 18:34:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1708 transitions. [2020-10-23 18:34:12,414 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1708 transitions. Word has length 222 [2020-10-23 18:34:12,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:12,414 INFO L481 AbstractCegarLoop]: Abstraction has 1387 states and 1708 transitions. [2020-10-23 18:34:12,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:34:12,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1708 transitions. [2020-10-23 18:34:12,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-23 18:34:12,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:12,422 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:12,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:12,638 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:12,639 INFO L82 PathProgramCache]: Analyzing trace with hash 2079783507, now seen corresponding path program 1 times [2020-10-23 18:34:12,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:12,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386748951] [2020-10-23 18:34:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:12,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:12,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:12,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-23 18:34:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 85 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:34:13,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386748951] [2020-10-23 18:34:13,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084270436] [2020-10-23 18:34:13,020 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 18:34:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:13,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:34:13,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-23 18:34:13,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:34:13,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-10-23 18:34:13,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127723094] [2020-10-23 18:34:13,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:34:13,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:13,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:34:13,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:34:13,349 INFO L87 Difference]: Start difference. First operand 1387 states and 1708 transitions. Second operand 5 states. [2020-10-23 18:34:14,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:14,830 INFO L93 Difference]: Finished difference Result 4027 states and 5147 transitions. [2020-10-23 18:34:14,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:34:14,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2020-10-23 18:34:14,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:14,848 INFO L225 Difference]: With dead ends: 4027 [2020-10-23 18:34:14,848 INFO L226 Difference]: Without dead ends: 2646 [2020-10-23 18:34:14,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:34:14,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2020-10-23 18:34:14,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2613. [2020-10-23 18:34:14,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2613 states. [2020-10-23 18:34:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 3192 transitions. [2020-10-23 18:34:15,000 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 3192 transitions. Word has length 236 [2020-10-23 18:34:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:15,000 INFO L481 AbstractCegarLoop]: Abstraction has 2613 states and 3192 transitions. [2020-10-23 18:34:15,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:34:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 3192 transitions. [2020-10-23 18:34:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-23 18:34:15,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:15,013 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:15,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-23 18:34:15,229 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:15,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:15,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2105090567, now seen corresponding path program 1 times [2020-10-23 18:34:15,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:15,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262063833] [2020-10-23 18:34:15,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:15,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:15,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:15,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:34:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 18:34:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:15,643 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 18:34:15,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262063833] [2020-10-23 18:34:15,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159832438] [2020-10-23 18:34:15,651 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 18:34:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:15,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:34:15,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:34:16,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:34:16,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:34:16,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594853602] [2020-10-23 18:34:16,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:34:16,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:16,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:34:16,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:34:16,101 INFO L87 Difference]: Start difference. First operand 2613 states and 3192 transitions. Second operand 10 states. [2020-10-23 18:34:16,425 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-23 18:34:16,723 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:34:19,327 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-23 18:34:22,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:22,967 INFO L93 Difference]: Finished difference Result 6770 states and 8294 transitions. [2020-10-23 18:34:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 18:34:22,968 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 248 [2020-10-23 18:34:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:22,969 INFO L225 Difference]: With dead ends: 6770 [2020-10-23 18:34:22,969 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:34:22,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2020-10-23 18:34:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:34:22,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:34:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:34:22,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:34:22,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2020-10-23 18:34:22,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:22,989 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:34:22,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:34:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:34:22,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:34:23,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:23,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:34:23,906 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 158 [2020-10-23 18:34:24,066 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 158 [2020-10-23 18:34:24,279 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 29 [2020-10-23 18:34:25,782 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 160 DAG size of output: 49 [2020-10-23 18:34:25,985 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-10-23 18:34:26,752 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 42 [2020-10-23 18:34:27,546 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 42 [2020-10-23 18:34:27,868 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 35 [2020-10-23 18:34:27,874 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:34:27,874 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:34:27,874 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:34:27,874 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:34:27,874 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:34:27,875 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~y~0 |old(~y~0)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-23 18:34:27,875 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:34:27,875 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-23 18:34:27,875 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-23 18:34:27,875 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-23 18:34:27,875 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-23 18:34:27,876 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,877 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-23 18:34:27,878 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,879 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-23 18:34:27,880 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:34:27,881 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:34:27,882 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-23 18:34:27,883 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:34:27,883 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-23 18:34:27,883 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-23 18:34:27,883 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-23 18:34:27,883 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-23 18:34:27,886 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-23 18:34:27,886 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-23 18:34:27,886 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-23 18:34:27,886 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-23 18:34:27,886 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-23 18:34:27,887 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-23 18:34:27,888 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-23 18:34:27,888 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-23 18:34:27,888 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-23 18:34:27,888 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-23 18:34:27,888 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,889 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-23 18:34:27,890 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:34:27,891 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,892 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:34:27,893 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,893 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:34:27,893 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:34:27,893 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:34:27,893 INFO L270 CegarLoopResult]: At program point L582(line 582) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a17~0)| 7))) (.cse6 (not (<= |old(~a28~0)| 10))) (.cse3 (= 10 |old(~a28~0)|)) (.cse4 (not (<= |old(~a19~0)| 0))) (.cse2 (not (= |old(~a11~0)| 1))) (.cse0 (not (= |old(~a19~0)| 1))) (.cse5 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse6 .cse1 .cse4 .cse2) (or .cse6 .cse0 .cse2) (or .cse0 .cse3 .cse5) (or .cse6 .cse4 .cse5) (or .cse3 .cse4 .cse2) (or .cse0 (not (<= 8 |old(~a17~0)|)) .cse5))) [2020-10-23 18:34:27,893 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-23 18:34:27,893 INFO L274 CegarLoopResult]: For program point L582-1(line 582) no Hoare annotation was computed. [2020-10-23 18:34:27,893 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-23 18:34:27,894 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-23 18:34:27,895 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-23 18:34:27,896 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-23 18:34:27,897 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-23 18:34:27,898 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-23 18:34:27,898 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-23 18:34:27,898 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-23 18:34:27,898 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse9 (= ~a28~0 |old(~a28~0)|)) (.cse10 (= ~a17~0 |old(~a17~0)|)) (.cse11 (= ~a11~0 |old(~a11~0)|)) (.cse12 (= ~a25~0 |old(~a25~0)|))) (let ((.cse2 (not (<= |old(~a17~0)| 7))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse5 (not (= |old(~a19~0)| 1))) (.cse6 (and .cse9 .cse10 .cse11 (= ~a19~0 1) .cse12)) (.cse4 (not (= |old(~a11~0)| 1))) (.cse1 (and .cse9 .cse10 .cse11 .cse12 (= ~a19~0 |old(~a19~0)|))) (.cse8 (= 10 |old(~a28~0)|)) (.cse3 (not (<= |old(~a19~0)| 0))) (.cse7 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (not (<= 8 |old(~a17~0)|)) .cse6 .cse7) (or .cse0 .cse5 .cse6 .cse4) (or .cse5 .cse2 .cse6 .cse4) (or .cse0 .cse1 .cse3 .cse7) (or .cse5 .cse8 .cse6 .cse7) (or .cse1 .cse8 .cse3 .cse4) (or .cse1 .cse8 .cse3 .cse7)))) [2020-10-23 18:34:27,898 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,899 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-23 18:34:27,900 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,901 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-23 18:34:27,902 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,903 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:34:27,904 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-10-23 18:34:27,905 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:34:27,905 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:34:27,905 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse6 (not (= ~a28~0 10))) (.cse0 (= ~a19~0 1)) (.cse2 (= ~a11~0 1)) (.cse4 (<= ~a17~0 7)) (.cse5 (<= ~a11~0 0)) (.cse3 (<= ~a19~0 0)) (.cse1 (<= ~a17~0 |old(~a17~0)|))) (or (and .cse0 .cse1 .cse2 (<= ~a28~0 10)) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse2 .cse4) (not (<= 8 |old(~a17~0)|)) (not (= |old(~a19~0)| 1)) (and .cse5 .cse0 .cse1 (<= 8 ~a17~0)) (and .cse5 .cse0 .cse1 .cse6) (and .cse3 .cse1 .cse6 .cse2) (and .cse0 .cse2 .cse4) (and .cse5 .cse3 .cse1) (not (<= |old(~a11~0)| 0)))) [2020-10-23 18:34:27,905 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a11~0)| 0))) [2020-10-23 18:34:27,905 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:34:27,905 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:34:27,906 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse6 (not (= ~a28~0 10))) (.cse0 (= ~a19~0 1)) (.cse2 (= ~a11~0 1)) (.cse4 (<= ~a17~0 7)) (.cse5 (<= ~a11~0 0)) (.cse3 (<= ~a19~0 0)) (.cse1 (<= ~a17~0 |old(~a17~0)|))) (or (and .cse0 .cse1 .cse2 (<= ~a28~0 10)) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse2 .cse4) (not (<= 8 |old(~a17~0)|)) (not (= |old(~a19~0)| 1)) (and .cse5 .cse0 .cse1 (<= 8 ~a17~0)) (and .cse5 .cse0 .cse1 .cse6) (and .cse3 .cse1 .cse6 .cse2) (and .cse0 .cse2 .cse4) (and .cse5 .cse3 .cse1) (not (<= |old(~a11~0)| 0)))) [2020-10-23 18:34:27,906 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-23 18:34:27,906 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-23 18:34:27,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:34:27 BoogieIcfgContainer [2020-10-23 18:34:27,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:34:27,934 INFO L168 Benchmark]: Toolchain (without parser) took 35944.27 ms. Allocated memory was 151.0 MB in the beginning and 461.4 MB in the end (delta: 310.4 MB). Free memory was 123.9 MB in the beginning and 329.8 MB in the end (delta: -205.9 MB). Peak memory consumption was 275.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:34:27,934 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:34:27,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.07 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 97.1 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:34:27,936 INFO L168 Benchmark]: Boogie Preprocessor took 163.07 ms. Allocated memory is still 151.0 MB. Free memory was 97.1 MB in the beginning and 92.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:34:27,937 INFO L168 Benchmark]: RCFGBuilder took 1611.88 ms. Allocated memory was 151.0 MB in the beginning and 212.9 MB in the end (delta: 61.9 MB). Free memory was 92.3 MB in the beginning and 174.1 MB in the end (delta: -81.8 MB). Peak memory consumption was 47.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:34:27,938 INFO L168 Benchmark]: TraceAbstraction took 33416.11 ms. Allocated memory was 212.9 MB in the beginning and 461.4 MB in the end (delta: 248.5 MB). Free memory was 173.5 MB in the beginning and 329.8 MB in the end (delta: -156.3 MB). Peak memory consumption was 262.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:34:27,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 738.07 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 97.1 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 163.07 ms. Allocated memory is still 151.0 MB. Free memory was 97.1 MB in the beginning and 92.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1611.88 ms. Allocated memory was 151.0 MB in the beginning and 212.9 MB in the end (delta: 61.9 MB). Free memory was 92.3 MB in the beginning and 174.1 MB in the end (delta: -81.8 MB). Peak memory consumption was 47.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 33416.11 ms. Allocated memory was 212.9 MB in the beginning and 461.4 MB in the end (delta: 248.5 MB). Free memory was 173.5 MB in the beginning and 329.8 MB in the end (delta: -156.3 MB). Peak memory consumption was 262.6 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: 608]: Loop Invariant Derived loop invariant: ((((((((((((a19 == 1 && a17 <= \old(a17)) && a11 == 1) && a28 <= 10) || !(\old(a28) <= 7)) || ((a19 <= 0 && a11 == 1) && a17 <= 7)) || !(8 <= \old(a17))) || !(\old(a19) == 1)) || (((a11 <= 0 && a19 == 1) && a17 <= \old(a17)) && 8 <= a17)) || (((a11 <= 0 && a19 == 1) && a17 <= \old(a17)) && !(a28 == 10))) || (((a19 <= 0 && a17 <= \old(a17)) && !(a28 == 10)) && a11 == 1)) || ((a19 == 1 && a11 == 1) && a17 <= 7)) || ((a11 <= 0 && a19 <= 0) && a17 <= \old(a17))) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.6s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 551 SDtfs, 3461 SDslu, 411 SDs, 0 SdLazy, 7824 SolverSat, 1592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1326 GetRequests, 1250 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2613occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 823 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 173 PreInvPairs, 231 NumberOfFragments, 672 HoareAnnotationTreeSize, 173 FomulaSimplifications, 43636 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7417 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 2563 NumberOfCodeBlocks, 2563 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2550 ConstructedInterpolants, 0 QuantifiedInterpolants, 1385566 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3138 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 782/824 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...