/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/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:30:48,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:30:48,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:30:48,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:30:49,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:30:49,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:30:49,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:30:49,008 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 18:30:49,064 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:30:49,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:30:49,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:30:49,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:30:49,070 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:30:49,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:30:49,070 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:30:49,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:30:49,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:30:49,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:30:49,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:30:49,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:30:49,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:30:49,073 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:30:49,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:30:49,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:30:49,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:30:49,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:30:49,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:30:49,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:30:49,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:30:49,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:30:49,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:30:49,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:30:49,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:30:49,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:30:49,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:30:49,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:30:49,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:30:49,077 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:30:49,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:30:49,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:30:49,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:30:49,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:30:49,560 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:30:49,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-10-23 18:30:49,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/268075861/e5d879ee046b4f73b16665e23682f005/FLAGcc866f7c8 [2020-10-23 18:30:50,434 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:30:50,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-10-23 18:30:50,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/268075861/e5d879ee046b4f73b16665e23682f005/FLAGcc866f7c8 [2020-10-23 18:30:50,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/268075861/e5d879ee046b4f73b16665e23682f005 [2020-10-23 18:30:50,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:30:50,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:30:50,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:30:50,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:30:50,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:30:50,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:30:50" (1/1) ... [2020-10-23 18:30:50,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1ea5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:50, skipping insertion in model container [2020-10-23 18:30:50,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:30:50" (1/1) ... [2020-10-23 18:30:50,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:30:50,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:30:51,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:30:51,345 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:30:51,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:30:51,508 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:30:51,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51 WrapperNode [2020-10-23 18:30:51,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:30:51,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:30:51,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:30:51,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:30:51,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (1/1) ... [2020-10-23 18:30:51,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (1/1) ... [2020-10-23 18:30:51,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (1/1) ... [2020-10-23 18:30:51,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (1/1) ... [2020-10-23 18:30:51,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (1/1) ... [2020-10-23 18:30:51,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (1/1) ... [2020-10-23 18:30:51,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (1/1) ... [2020-10-23 18:30:51,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:30:51,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:30:51,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:30:51,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:30:51,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (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 18:30:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:30:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:30:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:30:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:30:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:30:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:30:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:30:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:30:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:30:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:30:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:30:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:30:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:30:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:30:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:30:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:30:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:30:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:30:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:30:53,498 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:30:53,498 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:30:53,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:30:53 BoogieIcfgContainer [2020-10-23 18:30:53,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:30:53,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:30:53,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:30:53,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:30:53,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:30:50" (1/3) ... [2020-10-23 18:30:53,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da6ea20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:30:53, skipping insertion in model container [2020-10-23 18:30:53,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:51" (2/3) ... [2020-10-23 18:30:53,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da6ea20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:30:53, skipping insertion in model container [2020-10-23 18:30:53,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:30:53" (3/3) ... [2020-10-23 18:30:53,511 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-10-23 18:30:53,525 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:30:53,531 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:30:53,545 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:30:53,577 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:30:53,577 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:30:53,577 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:30:53,578 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:30:53,578 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:30:53,578 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:30:53,578 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:30:53,578 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:30:53,603 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-23 18:30:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-23 18:30:53,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:53,618 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] [2020-10-23 18:30:53,618 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:53,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1315592841, now seen corresponding path program 1 times [2020-10-23 18:30:53,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:53,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241819879] [2020-10-23 18:30:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:54,360 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:30:54,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:54,474 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 18:30:54,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241819879] [2020-10-23 18:30:54,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:30:54,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:30:54,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047387954] [2020-10-23 18:30:54,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:30:54,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:54,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:30:54,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:30:54,516 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-23 18:30:54,767 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:30:56,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:56,928 INFO L93 Difference]: Finished difference Result 587 states and 986 transitions. [2020-10-23 18:30:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:30:56,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-10-23 18:30:56,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:56,961 INFO L225 Difference]: With dead ends: 587 [2020-10-23 18:30:56,961 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 18:30:56,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:30:56,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 18:30:57,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2020-10-23 18:30:57,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-23 18:30:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 399 transitions. [2020-10-23 18:30:57,070 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 399 transitions. Word has length 110 [2020-10-23 18:30:57,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:57,073 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 399 transitions. [2020-10-23 18:30:57,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:30:57,073 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 399 transitions. [2020-10-23 18:30:57,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-23 18:30:57,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:57,084 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:30:57,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:30:57,084 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:57,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:57,087 INFO L82 PathProgramCache]: Analyzing trace with hash 281212675, now seen corresponding path program 1 times [2020-10-23 18:30:57,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:57,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323753160] [2020-10-23 18:30:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:57,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:57,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:30:57,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323753160] [2020-10-23 18:30:57,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:30:57,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:30:57,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603354487] [2020-10-23 18:30:57,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:30:57,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:57,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:30:57,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:30:57,450 INFO L87 Difference]: Start difference. First operand 283 states and 399 transitions. Second operand 8 states. [2020-10-23 18:30:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:59,563 INFO L93 Difference]: Finished difference Result 856 states and 1247 transitions. [2020-10-23 18:30:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:30:59,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-23 18:30:59,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:59,585 INFO L225 Difference]: With dead ends: 856 [2020-10-23 18:30:59,586 INFO L226 Difference]: Without dead ends: 579 [2020-10-23 18:30:59,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:30:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-10-23 18:30:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 559. [2020-10-23 18:30:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-23 18:30:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 789 transitions. [2020-10-23 18:30:59,676 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 789 transitions. Word has length 120 [2020-10-23 18:30:59,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:59,677 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 789 transitions. [2020-10-23 18:30:59,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:30:59,677 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 789 transitions. [2020-10-23 18:30:59,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-23 18:30:59,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:59,682 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:30:59,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:30:59,682 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:59,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:59,683 INFO L82 PathProgramCache]: Analyzing trace with hash -215052346, now seen corresponding path program 1 times [2020-10-23 18:30:59,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:59,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159532829] [2020-10-23 18:30:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:00,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:00,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:00,190 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:00,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159532829] [2020-10-23 18:31:00,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183452029] [2020-10-23 18:31:00,199 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 18:31:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:00,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:00,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:00,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:00,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:31:00,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-10-23 18:31:00,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871741080] [2020-10-23 18:31:00,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:31:00,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:00,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:31:00,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:31:00,584 INFO L87 Difference]: Start difference. First operand 559 states and 789 transitions. Second operand 3 states. [2020-10-23 18:31:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:01,475 INFO L93 Difference]: Finished difference Result 1660 states and 2386 transitions. [2020-10-23 18:31:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:31:01,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-10-23 18:31:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:01,486 INFO L225 Difference]: With dead ends: 1660 [2020-10-23 18:31:01,487 INFO L226 Difference]: Without dead ends: 1107 [2020-10-23 18:31:01,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:31:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2020-10-23 18:31:01,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 837. [2020-10-23 18:31:01,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-10-23 18:31:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1116 transitions. [2020-10-23 18:31:01,572 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1116 transitions. Word has length 121 [2020-10-23 18:31:01,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:01,575 INFO L481 AbstractCegarLoop]: Abstraction has 837 states and 1116 transitions. [2020-10-23 18:31:01,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:31:01,576 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1116 transitions. [2020-10-23 18:31:01,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-23 18:31:01,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:01,584 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:31:01,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:31:01,799 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:01,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:01,800 INFO L82 PathProgramCache]: Analyzing trace with hash -356191988, now seen corresponding path program 1 times [2020-10-23 18:31:01,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:01,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202746795] [2020-10-23 18:31:01,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:01,999 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:02,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:02,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:31:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:31:02,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202746795] [2020-10-23 18:31:02,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607938655] [2020-10-23 18:31:02,138 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 18:31:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:02,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:02,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:02,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:31:02,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:31:02,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015710178] [2020-10-23 18:31:02,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:31:02,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:02,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:31:02,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:31:02,522 INFO L87 Difference]: Start difference. First operand 837 states and 1116 transitions. Second operand 10 states. [2020-10-23 18:31:02,721 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:31:03,146 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-23 18:31:03,344 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:31:03,686 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-23 18:31:08,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:08,750 INFO L93 Difference]: Finished difference Result 3011 states and 4232 transitions. [2020-10-23 18:31:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 18:31:08,751 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 141 [2020-10-23 18:31:08,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:08,769 INFO L225 Difference]: With dead ends: 3011 [2020-10-23 18:31:08,769 INFO L226 Difference]: Without dead ends: 1876 [2020-10-23 18:31:08,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=166, Invalid=646, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:31:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2020-10-23 18:31:08,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1812. [2020-10-23 18:31:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1812 states. [2020-10-23 18:31:08,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2116 transitions. [2020-10-23 18:31:08,889 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2116 transitions. Word has length 141 [2020-10-23 18:31:08,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:08,889 INFO L481 AbstractCegarLoop]: Abstraction has 1812 states and 2116 transitions. [2020-10-23 18:31:08,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:31:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2116 transitions. [2020-10-23 18:31:08,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-23 18:31:08,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:08,899 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:31:09,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:09,114 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:09,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:09,115 INFO L82 PathProgramCache]: Analyzing trace with hash -657308875, now seen corresponding path program 1 times [2020-10-23 18:31:09,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:09,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922095545] [2020-10-23 18:31:09,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:09,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:09,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 18:31:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:31:09,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922095545] [2020-10-23 18:31:09,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609697573] [2020-10-23 18:31:09,436 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 18:31:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:09,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:09,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 18:31:09,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:31:09,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:31:09,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110804576] [2020-10-23 18:31:09,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:31:09,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:09,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:31:09,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:31:09,676 INFO L87 Difference]: Start difference. First operand 1812 states and 2116 transitions. Second operand 3 states. [2020-10-23 18:31:10,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:10,358 INFO L93 Difference]: Finished difference Result 4853 states and 5745 transitions. [2020-10-23 18:31:10,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:31:10,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-10-23 18:31:10,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:10,378 INFO L225 Difference]: With dead ends: 4853 [2020-10-23 18:31:10,378 INFO L226 Difference]: Without dead ends: 3051 [2020-10-23 18:31:10,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:31:10,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2020-10-23 18:31:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3049. [2020-10-23 18:31:10,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2020-10-23 18:31:10,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 3582 transitions. [2020-10-23 18:31:10,515 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 3582 transitions. Word has length 150 [2020-10-23 18:31:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:10,517 INFO L481 AbstractCegarLoop]: Abstraction has 3049 states and 3582 transitions. [2020-10-23 18:31:10,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:31:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 3582 transitions. [2020-10-23 18:31:10,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 18:31:10,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:10,528 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:31:10,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:10,744 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:10,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:10,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1057507297, now seen corresponding path program 1 times [2020-10-23 18:31:10,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:10,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636078080] [2020-10-23 18:31:10,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:10,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:10,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:10,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-23 18:31:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 44 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:31:11,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636078080] [2020-10-23 18:31:11,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113327298] [2020-10-23 18:31:11,101 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 18:31:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:11,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:31:11,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:11,391 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-23 18:31:11,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:31:11,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-10-23 18:31:11,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819405728] [2020-10-23 18:31:11,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:31:11,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:11,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:31:11,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:31:11,396 INFO L87 Difference]: Start difference. First operand 3049 states and 3582 transitions. Second operand 5 states. [2020-10-23 18:31:12,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:12,335 INFO L93 Difference]: Finished difference Result 5314 states and 6261 transitions. [2020-10-23 18:31:12,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:31:12,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-10-23 18:31:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:12,355 INFO L225 Difference]: With dead ends: 5314 [2020-10-23 18:31:12,355 INFO L226 Difference]: Without dead ends: 3079 [2020-10-23 18:31:12,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:31:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3079 states. [2020-10-23 18:31:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3079 to 3061. [2020-10-23 18:31:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2020-10-23 18:31:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 3548 transitions. [2020-10-23 18:31:12,503 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 3548 transitions. Word has length 160 [2020-10-23 18:31:12,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:12,503 INFO L481 AbstractCegarLoop]: Abstraction has 3061 states and 3548 transitions. [2020-10-23 18:31:12,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:31:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 3548 transitions. [2020-10-23 18:31:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 18:31:12,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:12,515 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:31:12,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:12,729 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:12,729 INFO L82 PathProgramCache]: Analyzing trace with hash 519565357, now seen corresponding path program 1 times [2020-10-23 18:31:12,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:12,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694851081] [2020-10-23 18:31:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:12,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:12,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:12,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-23 18:31:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:31:13,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694851081] [2020-10-23 18:31:13,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900103336] [2020-10-23 18:31:13,032 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 18:31:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:13,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:13,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:13,268 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 18:31:13,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:31:13,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:31:13,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528682509] [2020-10-23 18:31:13,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:31:13,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:13,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:31:13,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:31:13,271 INFO L87 Difference]: Start difference. First operand 3061 states and 3548 transitions. Second operand 10 states. [2020-10-23 18:31:13,731 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-23 18:31:14,237 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-23 18:31:14,469 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:31:14,659 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:31:16,465 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-23 18:31:19,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:19,157 INFO L93 Difference]: Finished difference Result 9047 states and 10636 transitions. [2020-10-23 18:31:19,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 18:31:19,158 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-10-23 18:31:19,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:19,188 INFO L225 Difference]: With dead ends: 9047 [2020-10-23 18:31:19,188 INFO L226 Difference]: Without dead ends: 5434 [2020-10-23 18:31:19,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:31:19,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2020-10-23 18:31:19,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 4699. [2020-10-23 18:31:19,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4699 states. [2020-10-23 18:31:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4699 states to 4699 states and 5351 transitions. [2020-10-23 18:31:19,381 INFO L78 Accepts]: Start accepts. Automaton has 4699 states and 5351 transitions. Word has length 170 [2020-10-23 18:31:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:19,381 INFO L481 AbstractCegarLoop]: Abstraction has 4699 states and 5351 transitions. [2020-10-23 18:31:19,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:31:19,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4699 states and 5351 transitions. [2020-10-23 18:31:19,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-23 18:31:19,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:19,395 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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] [2020-10-23 18:31:19,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-23 18:31:19,609 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:19,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:19,610 INFO L82 PathProgramCache]: Analyzing trace with hash 112335379, now seen corresponding path program 1 times [2020-10-23 18:31:19,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:19,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764984607] [2020-10-23 18:31:19,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:19,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:19,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:19,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:31:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:19,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-23 18:31:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:19,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-23 18:31:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:19,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-23 18:31:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 90 proven. 38 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-23 18:31:19,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764984607] [2020-10-23 18:31:19,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028176998] [2020-10-23 18:31:19,954 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 18:31:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:20,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:20,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-23 18:31:20,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:31:20,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-10-23 18:31:20,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840258119] [2020-10-23 18:31:20,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:31:20,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:20,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:31:20,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:31:20,272 INFO L87 Difference]: Start difference. First operand 4699 states and 5351 transitions. Second operand 11 states. [2020-10-23 18:31:20,410 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:31:22,373 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:31:22,911 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:31:24,043 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-23 18:31:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:26,088 INFO L93 Difference]: Finished difference Result 12688 states and 15137 transitions. [2020-10-23 18:31:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-23 18:31:26,089 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2020-10-23 18:31:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:26,140 INFO L225 Difference]: With dead ends: 12688 [2020-10-23 18:31:26,140 INFO L226 Difference]: Without dead ends: 8404 [2020-10-23 18:31:26,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=302, Invalid=1258, Unknown=0, NotChecked=0, Total=1560 [2020-10-23 18:31:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2020-10-23 18:31:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 7634. [2020-10-23 18:31:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7634 states. [2020-10-23 18:31:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 8539 transitions. [2020-10-23 18:31:26,517 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 8539 transitions. Word has length 198 [2020-10-23 18:31:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:26,518 INFO L481 AbstractCegarLoop]: Abstraction has 7634 states and 8539 transitions. [2020-10-23 18:31:26,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:31:26,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 8539 transitions. [2020-10-23 18:31:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-23 18:31:26,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:26,545 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:31:26,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:26,758 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:26,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:26,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1390529629, now seen corresponding path program 1 times [2020-10-23 18:31:26,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:26,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037347631] [2020-10-23 18:31:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:26,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:26,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:31:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:26,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-23 18:31:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-23 18:31:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:27,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-23 18:31:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 18:31:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 173 proven. 46 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-23 18:31:27,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037347631] [2020-10-23 18:31:27,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948343650] [2020-10-23 18:31:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:27,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:31:27,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:31:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-23 18:31:27,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:31:27,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-10-23 18:31:27,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342121810] [2020-10-23 18:31:27,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:31:27,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:27,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:31:27,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:31:27,491 INFO L87 Difference]: Start difference. First operand 7634 states and 8539 transitions. Second operand 11 states. [2020-10-23 18:31:27,646 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:31:28,131 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:31:28,577 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-23 18:31:29,696 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-23 18:31:30,732 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:31:32,008 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-23 18:31:33,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:33,756 INFO L93 Difference]: Finished difference Result 14136 states and 16087 transitions. [2020-10-23 18:31:33,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-23 18:31:33,757 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 254 [2020-10-23 18:31:33,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:33,758 INFO L225 Difference]: With dead ends: 14136 [2020-10-23 18:31:33,758 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:31:33,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=295, Invalid=1187, Unknown=0, NotChecked=0, Total=1482 [2020-10-23 18:31:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:31:33,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:31:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:31:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:31:33,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 254 [2020-10-23 18:31:33,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:33,792 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:31:33,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:31:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:31:33,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:31:34,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:31:34,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:31:36,563 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 289 [2020-10-23 18:31:37,443 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 289 [2020-10-23 18:31:37,724 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 35 [2020-10-23 18:31:41,510 WARN L193 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 237 DAG size of output: 79 [2020-10-23 18:31:43,614 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 257 DAG size of output: 72 [2020-10-23 18:31:43,806 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-23 18:31:45,862 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 257 DAG size of output: 72 [2020-10-23 18:31:46,762 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 59 [2020-10-23 18:31:46,768 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:31:46,769 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:31:46,769 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:31:46,769 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:31:46,769 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:31:46,769 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= ~y~0 |old(~y~0)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~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)|) (= ~b~0 |old(~b~0)|)) [2020-10-23 18:31:46,769 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-23 18:31:46,770 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-23 18:31:46,771 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-23 18:31:46,771 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-23 18:31:46,771 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-23 18:31:46,771 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-23 18:31:46,772 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-23 18:31:46,772 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-23 18:31:46,772 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-23 18:31:46,772 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-23 18:31:46,772 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-23 18:31:46,772 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-23 18:31:46,772 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-23 18:31:46,773 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,774 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-23 18:31:46,775 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-23 18:31:46,776 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-23 18:31:46,777 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,778 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-23 18:31:46,779 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-23 18:31:46,780 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-23 18:31:46,781 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,782 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-23 18:31:46,783 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-23 18:31:46,784 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-23 18:31:46,785 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-23 18:31:46,786 INFO L270 CegarLoopResult]: At program point L487(line 487) the Hoare annotation is: (let ((.cse7 (= |old(~a7~0)| 1)) (.cse9 (not (<= 5 |old(~a16~0)|))) (.cse4 (not (= |old(~a17~0)| 1))) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a17~0)| 0))) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse0 (not (= |old(~a20~0)| 1))) (.cse3 (not (= |old(~a7~0)| 0))) (.cse8 (not (<= |old(~a16~0)| 4))) (.cse10 (not (<= |old(~a8~0)| 14))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse6 (not (<= |old(~a20~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse7) (or .cse4 .cse8 .cse2 .cse7) (or .cse9 .cse0 .cse1 .cse2 .cse7) (or .cse0 .cse8 .cse10 .cse2 .cse3) (or .cse4 .cse11) (or .cse11 .cse1 (not (<= 6 |old(~a16~0)|))) (or .cse11 .cse8 .cse1) (or .cse9 .cse5 .cse10 .cse1 .cse2) (or .cse11 .cse8 .cse2) (or .cse4 .cse5 .cse0 .cse2 .cse3) (or .cse4 .cse2 .cse3 .cse6) (or .cse1 .cse2 .cse3 .cse6) (or .cse5 .cse1 .cse2 .cse6) (or .cse11 .cse0 .cse2 .cse3) (or .cse8 .cse10 .cse2 .cse6))) [2020-10-23 18:31:46,786 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-23 18:31:46,786 INFO L274 CegarLoopResult]: For program point L487-1(line 487) no Hoare annotation was computed. [2020-10-23 18:31:46,786 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-23 18:31:46,786 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-23 18:31:46,786 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-23 18:31:46,787 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,787 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,787 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse13 (= ~a7~0 |old(~a7~0)|)) (.cse12 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= ~a21~0 1)) (.cse15 (= ~a20~0 |old(~a20~0)|)) (.cse16 (= ~a16~0 |old(~a16~0)|)) (.cse17 (= ~a8~0 |old(~a8~0)|))) (let ((.cse8 (and .cse12 .cse20 .cse15 .cse16 .cse17 (= ~a7~0 0))) (.cse10 (not (= |old(~a7~0)| 0))) (.cse9 (not (= |old(~a20~0)| 1))) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse4 (not (<= |old(~a20~0)| 0))) (.cse5 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a16~0)| 4))) (.cse7 (= |old(~a7~0)| 1)) (.cse19 (not (<= 5 |old(~a16~0)|))) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a8~0)| 14))) (.cse18 (not (<= |old(~a17~0)| 0))) (.cse3 (not (= |old(~a21~0)| 1))) (.cse2 (and .cse13 .cse12 .cse20 .cse15 .cse16 .cse17))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse2 .cse3 .cse4 .cse7) (or .cse8 .cse9 .cse0 .cse1 .cse3 .cse10) (or .cse5 .cse8 .cse6 .cse9 .cse3 .cse10) (or (and (or .cse11 (not (<= 6 |old(~a16~0)|))) (or .cse11 .cse0)) (and .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) .cse18) (or .cse8 .cse11 .cse9 .cse3 .cse10) (or .cse8 .cse18 .cse3 .cse10 .cse4) (or .cse5 .cse8 .cse3 .cse10 .cse4) (or .cse8 .cse9 .cse18 .cse3 .cse10) (or .cse19 .cse9 .cse18 .cse2 .cse3 .cse7) (or .cse11 .cse0 .cse2 .cse3) (or .cse5 .cse11 (and .cse13 .cse12 .cse14 .cse15 .cse16 .cse17)) (or .cse6 .cse18 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse3 .cse7) (or .cse19 .cse6 .cse1 .cse18 .cse3 .cse2)))) [2020-10-23 18:31:46,787 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,787 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-23 18:31:46,788 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,789 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-23 18:31:46,790 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,791 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-23 18:31:46,792 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:31:46,793 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (= ~a20~0 1) (<= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-23 18:31:46,794 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:31:46,794 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:31:46,794 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 5 |old(~a16~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-23 18:31:46,794 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:31:46,794 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse3 (= ~a17~0 1)) (.cse6 (<= ~a20~0 0)) (.cse9 (<= ~a8~0 14)) (.cse5 (<= ~a16~0 5)) (.cse4 (= ~a7~0 0)) (.cse7 (<= ~a8~0 13)) (.cse0 (= ~a21~0 1)) (.cse8 (<= ~a17~0 0)) (.cse10 (= ~a20~0 1)) (.cse11 (<= 5 ~a16~0)) (.cse2 (not (= ~a7~0 1)))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and (= ~a17~0 |old(~a17~0)|) .cse0 (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (and .cse7 .cse3) (and .cse0 .cse1 .cse7) (and (or (and (<= 6 ~a16~0) .cse7) (and .cse1 .cse7)) .cse8) (not (= |old(~a20~0)| 1)) (and .cse0 .cse8 .cse4 .cse6) (and .cse0 .cse9 .cse1 .cse10 .cse4) (and .cse9 .cse0 .cse1 .cse6) (not (= |old(~a21~0)| 1)) (and .cse0 .cse5 .cse8 .cse6) (and .cse0 .cse1 .cse8 .cse10 (<= ~a8~0 |old(~a8~0)|) .cse4) (not (= |old(~a17~0)| 1)) (and .cse0 .cse4 .cse3 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse9 .cse0 .cse5 .cse8 .cse11) (and .cse0 .cse10 .cse4 .cse7) (and .cse0 .cse8 .cse10 .cse11 .cse2) (not (= |old(~a7~0)| 0)))) [2020-10-23 18:31:46,795 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-23 18:31:46,795 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-23 18:31:46,795 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse3 (= ~a17~0 1)) (.cse6 (<= ~a20~0 0)) (.cse9 (<= ~a8~0 14)) (.cse5 (<= ~a16~0 5)) (.cse4 (= ~a7~0 0)) (.cse7 (<= ~a8~0 13)) (.cse0 (= ~a21~0 1)) (.cse8 (<= ~a17~0 0)) (.cse10 (= ~a20~0 1)) (.cse11 (<= 5 ~a16~0)) (.cse2 (not (= ~a7~0 1)))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and (= ~a17~0 |old(~a17~0)|) .cse0 (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (and .cse7 .cse3) (and .cse0 .cse1 .cse7) (and (or (and (<= 6 ~a16~0) .cse7) (and .cse1 .cse7)) .cse8) (not (= |old(~a20~0)| 1)) (and .cse0 .cse8 .cse4 .cse6) (and .cse0 .cse9 .cse1 .cse10 .cse4) (and .cse9 .cse0 .cse1 .cse6) (not (= |old(~a21~0)| 1)) (and .cse0 .cse5 .cse8 .cse6) (and .cse0 .cse1 .cse8 .cse10 (<= ~a8~0 |old(~a8~0)|) .cse4) (not (= |old(~a17~0)| 1)) (and .cse0 .cse4 .cse3 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse9 .cse0 .cse5 .cse8 .cse11) (and .cse0 .cse10 .cse4 .cse7) (and .cse0 .cse8 .cse10 .cse11 .cse2) (not (= |old(~a7~0)| 0)))) [2020-10-23 18:31:46,795 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:31:46,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:31:46 BoogieIcfgContainer [2020-10-23 18:31:46,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:31:46,843 INFO L168 Benchmark]: Toolchain (without parser) took 56142.00 ms. Allocated memory was 155.2 MB in the beginning and 675.3 MB in the end (delta: 520.1 MB). Free memory was 127.8 MB in the beginning and 551.8 MB in the end (delta: -423.9 MB). Peak memory consumption was 406.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:31:46,844 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 96.4 MB in the beginning and 96.2 MB in the end (delta: 160.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:31:46,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.44 ms. Allocated memory is still 155.2 MB. Free memory was 127.2 MB in the beginning and 131.3 MB in the end (delta: -4.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:31:46,849 INFO L168 Benchmark]: Boogie Preprocessor took 151.52 ms. Allocated memory is still 155.2 MB. Free memory was 131.3 MB in the beginning and 126.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:31:46,850 INFO L168 Benchmark]: RCFGBuilder took 1836.40 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 126.6 MB in the beginning and 151.5 MB in the end (delta: -24.9 MB). Peak memory consumption was 52.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:31:46,855 INFO L168 Benchmark]: TraceAbstraction took 53336.02 ms. Allocated memory was 186.6 MB in the beginning and 675.3 MB in the end (delta: 488.6 MB). Free memory was 151.5 MB in the beginning and 551.8 MB in the end (delta: -400.2 MB). Peak memory consumption was 397.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:31:46,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 96.4 MB in the beginning and 96.2 MB in the end (delta: 160.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 801.44 ms. Allocated memory is still 155.2 MB. Free memory was 127.2 MB in the beginning and 131.3 MB in the end (delta: -4.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.52 ms. Allocated memory is still 155.2 MB. Free memory was 131.3 MB in the beginning and 126.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1836.40 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 126.6 MB in the beginning and 151.5 MB in the end (delta: -24.9 MB). Peak memory consumption was 52.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53336.02 ms. Allocated memory was 186.6 MB in the beginning and 675.3 MB in the end (delta: 488.6 MB). Free memory was 151.5 MB in the beginning and 551.8 MB in the end (delta: -400.2 MB). Peak memory consumption was 397.2 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: 585]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(5 <= \old(a16)) || (((a21 == 1 && a16 <= 4) && !(a7 == 1)) && a17 == 1)) || (((((a17 == \old(a17) && a21 == 1) && a20 == \old(a20)) && a16 == \old(a16)) && a8 == \old(a8)) && a7 == 0)) || ((((a21 == 1 && a16 <= 5) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || (a8 <= 13 && a17 == 1)) || ((a21 == 1 && a16 <= 4) && a8 <= 13)) || (((6 <= a16 && a8 <= 13) || (a16 <= 4 && a8 <= 13)) && a17 <= 0)) || !(\old(a20) == 1)) || (((a21 == 1 && a17 <= 0) && a7 == 0) && a20 <= 0)) || ((((a21 == 1 && a8 <= 14) && a16 <= 4) && a20 == 1) && a7 == 0)) || (((a8 <= 14 && a21 == 1) && a16 <= 4) && a20 <= 0)) || !(\old(a21) == 1)) || (((a21 == 1 && a16 <= 5) && a17 <= 0) && a20 <= 0)) || (((((a21 == 1 && a16 <= 4) && a17 <= 0) && a20 == 1) && a8 <= \old(a8)) && a7 == 0)) || !(\old(a17) == 1)) || (((a21 == 1 && a7 == 0) && a17 == 1) && a20 <= 0)) || !(\old(a16) <= 5)) || ((((a8 <= 14 && a21 == 1) && a16 <= 5) && a17 <= 0) && 5 <= a16)) || (((a21 == 1 && a20 == 1) && a7 == 0) && a8 <= 13)) || ((((a21 == 1 && a17 <= 0) && a20 == 1) && 5 <= a16) && !(a7 == 1))) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 40.4s, OverallIterations: 9, TraceHistogramMax: 7, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 701 SDtfs, 5588 SDslu, 739 SDs, 0 SdLazy, 12948 SolverSat, 1833 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1469 GetRequests, 1302 SyntacticMatches, 3 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1162 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7634occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1883 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 497 PreInvPairs, 681 NumberOfFragments, 1464 HoareAnnotationTreeSize, 497 FomulaSimplifications, 298144 FormulaSimplificationTreeSizeReduction, 3.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 24922 FormulaSimplificationTreeSizeReductionInter, 9.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 2618 NumberOfCodeBlocks, 2618 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2602 ConstructedInterpolants, 0 QuantifiedInterpolants, 1173715 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3979 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 1434/1571 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...